70 results about "Poisson's ratio" patented technology

This invention relates to hot-stamped components and a method for manufacturing the same. The hot-stamped component comprises a steel plate and an Al-Si based coating layer formed on at least one surface of the steel plate. Residual stress exists in the steel plate of the hot-stamped component, and the peak position of the diffraction lines is changed by altering the incident angle φ while irradiating the steel plate with X-rays. The slope M is obtained by linear regression using the least squares method, and the slope M is multiplied by the residual stress value calculated from the stress constant K obtained from the Young's modulus and Poisson's ratio of the steel plate according to Equation 1, which is between 5 MPa and 70 MPa. [Equation 1] K = -E / 2(1+v)*cotθ*π / 180, where E is the Young's modulus in MPa, v is the Poisson's ratio, and M is the slope of the regression line 2θ-sinθ. 2 θ and 2θ are the diffraction angles in ° without strain, and K is the stress constant in MPa.

This invention relates to the field of novel materials, specifically a novel metamaterial exhibiting both multi-stable state and negative Poisson's ratio properties. It comprises a concave hexagonal frame, two arc-shaped beams positioned on the upper and lower sides of the frame's inner cavity, and a vertical rod. The two arc-shaped beams are fixedly connected to the upper and lower ends of the vertical rod via their respective central portions. When the structure is subjected to a vertical compressive load, the frame's diagonal bracing rotates inward, contracting and compressing the ends of the arc-shaped beams, generating a significant negative Poisson's ratio effect. This process forces the arc-shaped beams to bend and deform towards the center, accompanied by energy dissipation. When the displacement reaches a critical threshold, the arc-shaped beams buckle and overturn, switching to a steady state. This invention, through specific geometric configurations and differentiated material layouts, achieves morphological self-repair after impact and reuse under low-intensity conditions. This metamaterial can be arranged as a two-dimensional periodic array as a unit cell.

This invention relates to the fields of microelectromechanical systems (MEMS) and new energy technologies, and discloses a piezoelectric energy harvester based on a nonlinear gradient negative Poisson's ratio structure. Its elastic matrix has a fixed end and a free end, with a negative Poisson's ratio structural segment on it. The piezoelectric transducer element is bonded to the surface of the negative Poisson's ratio structural segment via an epoxy resin adhesive layer. The core innovation lies in the nonlinear monotonically decreasing thickness of the elastic matrix from the fixed end to the free end along its length. This change profile is defined by a specific cubic polynomial function, which can accurately approximate the theoretical model of an isostress beam, making the stress distribution on the matrix surface tend to be uniform during vibration. Simultaneously, the lateral expansion characteristics of the negative Poisson's ratio structural segment and the longitudinal stress enhancement effect of the nonlinear thickness synergistically amplify the charge output of the piezoelectric element. This invention significantly improves the utilization efficiency of piezoelectric materials and the power density of the energy harvester, and has the advantages of compact structure, high energy conversion efficiency, and mass production via 3D printing.

The present application belongs to the technical field of structure monitoring based on optical fiber sensing technology, and particularly relates to a strain compensation correction method for optical fiber sensors based on a numerical model. Based on a finite element analysis model for strain transmission of a concrete-optical fiber sensor structure, a theoretical strain transmission rate of a theoretical model of the concrete-optical fiber is determined. The elastic modulus and Poisson's ratio of different materials of a packaging layer of the optical fiber sensor are determined through a material tensile test, a global finite element model of the concrete-optical fiber sensor is established, and the theoretical strain transmission rate of the concrete-optical fiber sensor is calculated. Through a strain monitoring test of the concrete optical fiber sensor, the ratio of the strain monitored by the optical fiber in the concrete to the strain monitored by a strain gauge on the surface of the concrete is determined, the test monitoring value of the strain transmission rate of the concrete-optical fiber sensor is obtained, the error of the theoretical model is corrected through the test value, and the error correction coefficient is determined. The present application is suitable for high-precision compensation correction of strain monitoring data of optical fiber sensors affected by multiple layers of media.

The application discloses a high-ductility fracture-free double-yield-point buckling-restrained brace with a cross-shaped steel negative Poisson's ratio core and a multi-storey or high-rise fabricated building, and the buckling-restrained brace comprises a cross-shaped steel first-order core, a corner steel second-order core, and corner steel peripheral constraints; the cross-shaped steel first-order core comprises a middle negative Poisson's ratio weakening area one in the middle of the cross-shaped steel; the corner steel second-order core comprises a middle negative Poisson's ratio weakening area two in the middle of the corner steel; the corner steel peripheral constraints comprise a middle pre-tightening area in the middle of the corner steel; four groups of the corner steel second-order core are respectively arranged at four corners of the cross-shaped steel first-order core; four groups of the corner steel peripheral constraints are respectively arranged at peripheries of the four groups of the corner steel second-order core and are pre-tightened in the middle pre-tightening area; the cross-shaped steel first-order core can produce a first displacement longitudinal sliding relative to the corner steel second-order core; the corner steel second-order core can produce a second displacement longitudinal sliding relative to the corner steel peripheral constraints; and the second displacement is greater than the first displacement. The application aims to solve the problems of the buckling-restrained brace, such as insufficient ductility, easy fracture and limited energy dissipation of the core under an earthquake.

This invention discloses a dynamic inversion method and system for equivalent elastic parameters of porous water-bearing rocks, relating to the field of underground engineering technology. The method includes the following steps: real-time acquisition of lining strain data, displacement data, and pore water pressure data of underground structures in porous water-bearing rock strata using on-site monitoring equipment; preprocessing of the acquired raw data to remove outliers and noise; establishing an inversion objective function based on the preprocessed data and the correlation between pore water pressure and the equivalent elastic modulus and equivalent Poisson's ratio of the rock; solving the inversion objective function using an inversion algorithm to obtain the equivalent elastic modulus and equivalent Poisson's ratio of the surrounding rock; verifying and correcting the obtained equivalent elastic modulus and equivalent Poisson's ratio, and outputting the final result. This invention can provide accurate input parameters for calculating the hydraulic load of underground structures in porous water-bearing rock strata, improving the accuracy and timeliness of underground engineering design and safety assessment.

The present application relates to the field of textile machinery and equipment damping, specifically warp knitting machine bed damping device and method thereof; containing damping base, negative Poisson's ratio lattice metal bearing framework, corrugated air chamber, venturi micro flow channel, composite fluid and electromagnetic coil and controller and other modules; The system fills the shear thickening and magnetorheological mixed composite fluid in the bearing cavity, cooperates with the bearing framework with three-dimensional interconnected pores, and occurs local shear thickening under high frequency impact; The core is that the controller extracts the high frequency vibration characteristics of the main shaft motor, combines the air chamber pressure pulse to solve the dynamic kinetic energy and total stiffness demand, and actively adjusts the electromagnetic coil current and duty cycle; The present application effectively avoids the dynamic hardening defect of traditional hydraulic damping, and realizes the active adjustment type energy consumption and self-adaptive compensation of equivalent stiffness for high frequency periodic impact.

This invention provides a method for fabricating a tactile sensing unit capable of independently adjusting sensitivity and linear range, belonging to the fields of flexible wearables, tactile sensing, and human-computer interaction. The method includes the following steps: S1, determining the structure of the tactile sensing unit; S2, establishing a correlation model between the structural parameters of the bi-phase constrained elastomer and the range and sensitivity of the sensing unit; S3, based on the target linear range and target sensitivity, obtaining the structural parameters of the high-stiffness outer ring and the negative Poisson's ratio inner ring through the correlation model; S4, fabricating the bi-phase constrained elastomer according to the structural parameters of the high-stiffness outer ring and the negative Poisson's ratio inner ring, and assembling and packaging it. This invention achieves synergistic optimization of wide linear range and high sensitivity through the bi-phase constrained elastomer structure, and supports reverse design with calculable parameters, manufacturable structure, and integrable functions based on target performance indicators.

The application provides a metal energy-absorbing thin-walled pipe with a negative Poisson's ratio effect and a design method thereof, comprising a thin-walled pipe body, the thin-walled pipe body is composed of a plurality of unit bodies which are sequentially fixedly connected in a head-to-tail mode from top to bottom, each unit body comprises a pipe and a joint which are fixedly connected, the joint is fixed at the bottom of the pipe, and the wall thickness of the pipe is greater than the wall thickness of the joint. In the technical scheme, the thickness of the metal pipe and the connected joint is inconsistent, the thickness of the metal pipe is greater than the thickness of the connected joint, the metal pipe has better bending strength than a conventional metal pipe with the same thickness when subjected to a bending load, is not prone to deformation and bending when subjected to the same load, and the structure has a negative Poisson's ratio effect when subjected to compression, the metal pipe is shortened in the longitudinal direction and shrinks in the transverse direction when subjected to a compression load, is more prone to densification, and has a better energy-absorbing effect than a conventional metal pipe.

This invention discloses a method and system for anisotropic patterning correction of wafer warpage, comprising: obtaining the target anisotropic curvature compensation value of the wafer to be corrected; calculating the target equivalent thin film stress value to be achieved by the stress balance layer based on the curvature compensation value, the mechanical parameters of the wafer substrate, and the preset thickness of the patterned stress balance layer; determining the geometric parameters of the patterned stress balance layer using a quantitative relationship model, based on the target equivalent thin film stress value, the intrinsic stress of the selected thin film material, and Poisson's ratio; and fabricating a corresponding patterned stress balance layer on the back side of the wafer to complete the warpage correction. By designing the patterned stress balance layer, the anisotropic control of the overall thin film stress state of the back stress layer can be achieved; curvature compensation, both in magnitude and direction, can be independently designed for warpage differences in different directions of the wafer, thereby adapting to and correcting various complex asymmetric warpage morphologies.

An apparatus includes a top pad having a first plurality of protrusions and a first plurality of grooves between the first plurality of protrusions, a first adhesive film underlying the top pad, and an anti-deformation layer underlying and attached to the top pad through the first adhesive film. The anti-deformation layer has a first Young's modulus and a first Poisson's ratio. The apparatus further includes a second adhesive film underlying the anti-deformation layer, and a main support layer underlying and attached to the anti-deformation layer through the second adhesive film. The main support layer has a second Young's modulus lower than the first Young's modulus.

The application provides a three-dimensional gradient negative Poisson's ratio honeycomb skeleton structure and a preparation method and application thereof, and relates to the technical field of mechanical metamaterials; the external configuration of the three-dimensional gradient negative Poisson's ratio honeycomb skeleton structure is a circular truncated cone tube structure; the circular truncated cone tube structure comprises a plurality of curved surface concave hexagonal cells arranged around a central axis of the circular truncated cone tube structure and in a gradient along the circular truncated cone generatrix direction; the structure gradient can be first realized by relying on inherent characteristics of the inclined wall surface of the circular truncated cone tube structure, and further controlled by adjusting internal cell parameters; and the skeleton structure can be prepared by a 3D printing process. The three-dimensional gradient negative Poisson's ratio honeycomb skeleton structure has the characteristics of light self-weight, linear deformability, synergistic effects of structure gradient effects and negative Poisson's ratio effects, and deformation characteristics of flexible linear expansion under external load, and can be used in the fields of protective engineering, artificial intelligence, wearable devices, medical devices, artificial prostheses and the like.

A method for determining the adiabatic temperature rise of high fly ash concrete, which can accurately reflect the temperature change of high fly ash concrete, take into account the early age and later period, and more flexibly and accurately simulate the actual hydration heat process of high fly ash concrete. It comprises: (1) obtaining the thermal conductivity, temperature conductivity, bulk density, specific heat, linear expansion coefficient and Poisson's ratio of high fly ash concrete through experiments, and obtaining the initial adiabatic temperature rise parameters of high fly ash concrete through adiabatic temperature rise test; (2) determining the first part of the model first, using the measured data of the dam body and combining with simulation calculation to obtain the first part of the model; (3) using the thermometer pre-buried in the structure to measure the temperature rise value of the concrete after reaching the minimum temperature in the actual project, and according to the relationship between the data and the age, the second half of the model is analyzed by regression analysis to obtain the adiabatic temperature rise parameters of the second half of the model formula; (4) obtaining the complete formula, and calculating the concrete temperature field according to the formula.

The utility model discloses a bridge anti -collision device based on the coupling of shear hardening and negative poisson's ratio effect, including a plurality of energy -absorbing box and a plurality of fixed ring, a plurality of energy -absorbing box evenly is placed in the outside of pier and is closely spliced between adjacent energy -absorbing box, a plurality of fixed ring is evenly placed on the outer ring surface of pier and is in the embrace shape, and the fixed ring between adjacent is closely connected to be connected into a whole around pier, and the energy -absorbing box is buckled on the outside of fixed ring, and the bolt for fixing energy -absorbing box and fixed ring is inserted between energy -absorbing box and fixed ring from top to bottom, the utility model relates to building safety protection technical field, through the collaborative energy -absorbing mechanism of the introduction of negative poisson's ratio effect and shear hardening effect, the bridge anti -collision device of structure stable, energy -absorbing efficient has been constructed, and simultaneously through the modularization and the bolt type design, the quick dismounting and partial replacement function of device have been realized, and maintenance difficulty and cost have been reduced, have good engineering applicability and popularization prospect.

The application provides an amplification type negative Poisson's ratio damping device, and relates to the technical field of damping devices.The device comprises a first mounting module, two second mounting modules, a first supporting rod, two second supporting rods, and two negative Poisson's ratio energy dissipation modules.The first supporting rod is hingedly connected to the first mounting module.The two second supporting rods are hingedly connected to the first supporting rod at one end and to the two second mounting modules at the other end.The negative Poisson's ratio energy dissipation module comprises a guide rod and an outer shell body sleeved on the guide rod.At least one first baffle and two second baffles are movably arranged on the guide rod and placed in the outer shell body.A cavity between the first baffle and the second baffle is provided with a plurality of negative Poisson's ratio energy dissipation units.The damping device improves the actual deformation amplitude of the negative Poisson's ratio energy dissipation steel plate, improves the damping and energy dissipation efficiency, and the assembled negative Poisson's ratio energy dissipation unit reduces the overall forming and processing difficulty, which is conducive to quick repair and maintenance after damage.

The application provides a method and system for calculating a brittleness index of a high porosity reservoir and an electronic device, comprising calculating Young's modulus, Poisson's ratio and shear modulus of logging data according to P-wave velocity, S-wave velocity and density in the logging data; calculating Lame's coefficient according to the Young's modulus and the shear modulus; establishing a rock brittleness index equation based on the Young's modulus, the Poisson's ratio and the Lame's coefficient, and obtaining a rock brittleness index through the rock brittleness index equation. The technical scheme of the application has the beneficial effect of providing a new brittleness index for a brittle gas-bearing area with high porosity, which is only related to P-wave velocity, S-wave velocity and density, thereby avoiding the influence of rock porosity, fluid, organic matter and other factors on the prediction of Young's modulus and Poisson's ratio, and having a good indicating effect on a favorable brittle gas-bearing area.

The functionally graded coating elastic modulus and loss factor identification method based on vibration test in thermal environment belongs to the technical field of structural vibration and material parameter identification, and comprises the following steps: a metal plate specimen coated with a functionally graded coating is prepared, and structural geometric parameters, component material parameters and thermal vibration environment parameters are obtained; vibration excitation is applied to the metal plate specimen under thermal environment conditions, and the test inherent frequency and test damping ratio of the target order are obtained; an equivalent material parameter model of the functionally graded coating is established, the equivalent Young's modulus, shear modulus, Poisson's ratio and density of the coating material are obtained, and the transformation stiffness coefficient is calculated; based on the first-order shear deformation theory and the thermal plasticity theory, an analytical dynamics model of the metal plate specimen under thermal environment is established, and the theoretical inherent frequency and theoretical damping ratio of the corresponding order are obtained; an error function with inherent frequency and resonance response as constraints is constructed, and the equivalent elastic modulus and loss factor of the functionally graded coating are obtained through iterative optimization based on the particle swarm algorithm.

The application belongs to the technical field of bearing structure design and vibration control of ship propulsion system, and discloses an isobaric expansion stern bearing based on a negative Poisson's ratio topological inner lining structure, wherein the negative Poisson's ratio topological layer is composed of geometric topological units and produces tangential expansion deformation under the action of a radial load. Through the negative Poisson's ratio effect, the radial compression load of the shaft system is converted into a circumferential expansion response, the isobaric expansion of the shaft-lining contact area is realized, the effective bearing area is increased, and the contact pressure distribution is homogenized. The topological inner lining is divided into a head end topological region, a transition region, a middle topological region, a transition region and a stern end topological region in the axial direction, and the geometric parameters of the topological units, the equivalent Poisson's ratio and the thickness of the negative Poisson's ratio topological layer are adjusted in each region to adapt to the non-uniform distribution of shaft bending, partial load and lubrication state under low-speed heavy-load conditions. The application can significantly reduce edge high pressure and local wear, improve water film stability, and improve the carrying capacity, vibration reduction and noise reduction performance and service life of the stern bearing.

The application belongs to the field of civil engineering and specifically relates to a negative Poisson's ratio composite steel plate shear wall, which comprises a negative Poisson's ratio component and an edge component; the negative Poisson's ratio component comprises a sandwich layer arranged in the middle and outer steel plates arranged on both sides of the sandwich layer respectively; the outer steel plates are connected with the edge component, the sandwich layer is arranged inside the edge component, and the sandwich layer is connected with the outer steel plates; the outer steel plates and the sandwich layer both have a negative Poisson's ratio configuration. Compared with the prior art, the application solves the defect that the blast resistance and the seismic resistance of the steel plate shear wall do not match in the prior art, optimizes and improves the steel plate shear wall, a typical steel structure component, based on the design concept of the negative Poisson's ratio metamaterial, and provides a new type of negative Poisson's ratio composite steel plate shear wall, which realizes the seismic resistance and the blast resistance of the SPSW and basically realizes the goal of overall coordination of the structural performance requirements under the actions of two disasters.

The application discloses a rock characteristic stress identification method based on wave impedance characteristics, and comprises the following steps: S1, preparing a labeled rock sample; S2, collecting the longitudinal wave velocity under the uniaxial compressive strength condition; S3, calculating the rock density at each longitudinal wave velocity collection time; S4, calculating the rock wave impedance according to the data collected in S2 and S3; and S5, calculating the axial stress according to the axial load corresponding to each longitudinal wave velocity measurement time. The application provides a reliable and convenient quantitative identification method for the closed stress, cracking stress and damage stress of brittle rock. The method overcomes the limitations of the crack volume strain method, such as the solving precision and reliability, and the influence of the rock elastic modulus, Poisson's ratio value and natural fissure development degree.

This invention relates to the field of impact-resistant energy absorption technology. It discloses a sandwich structure filled with magnetorheological fluid and a negative Poisson's ratio metamaterial. A sealing plate is fixedly and sealed on the upper and lower end faces of a negative Poisson's ratio substrate, the size of which is equal to the dimensions of the upper and lower end faces of the substrate. The negative Poisson's ratio substrate and the sealing plate are inserted into the cavity of the sandwich shell. The magnetorheological fluid fills the negative Poisson's ratio substrate. Two mounting holes are symmetrically arranged from left to right on the upper and lower surfaces of the sandwich shell. An electromagnetic coil frame is fixedly disposed in the center of the mounting holes, and the electromagnetic coil is fitted inside the frame. When energized, the electromagnetic coil generates a low-frequency electromagnetic field on the upper and lower parts of the negative Poisson's ratio substrate, controlling the state of the magnetorheological fluid. The beneficial effects of this invention are: improved energy absorption and overall stiffness of the magnetorheological fluid-filled negative Poisson's ratio metamaterial sandwich structure.

This invention discloses a combined honeycomb design method that can achieve planar boundary curvature matching. The method mainly includes the following aspects: First, the boundary curvature of the target shape is used to divide the area; based on the area division results, appropriate honeycomb materials and honeycomb structures are selected. Simultaneously, deformation analysis is performed on the honeycomb structure to determine the relationship between the honeycomb angle, Poisson's ratio, and lateral displacement, obtaining the influence law of the honeycomb angle on deformation and Poisson's ratio, and establishing a mathematical model of the relationship between honeycomb angle, Poisson's ratio, and deformation. Further, based on the combined honeycomb boundary connection method, a suitable connection method is selected, and finally, honeycombs of different types and geometric parameters are filled into the corresponding areas. The design method of this invention is simple to operate, has a clear design mechanism, avoids a large amount of mechanical and mathematical calculations, and can quickly and accurately match complex planar states, possessing a wide range of applications and practical value.

The application provides a method for determining the viscoelastic Poisson's ratio of the earth medium, which comprises the following steps: (1) constructing a Laplace domain viscoelastic Poisson's ratio expression; (2) constructing a Laplace domain viscoelastic Poisson's ratio calculation formula based on a Maxwell model; (3) constructing a relationship between a viscous coefficient and a quality factor; (4) obtaining an updated Laplace domain Maxwell model viscoelastic Poisson's ratio calculation formula; (5) obtaining a time domain Maxwell model viscoelastic Poisson's ratio final calculation formula; and (6) obtaining a volume change and a shear quality factor, an elastic Poisson's ratio parameter, and calculating the viscoelastic Poisson's ratio distribution characteristics of the underground medium. The application has reasonable conception, simultaneously considers the influence of the volume change and the shear quality factor, effectively solves the technical problems of the insufficient applicability of the existing viscoelastic Poisson's ratio theory in the earth science and the neglect of the volume change attenuation effect, and thus promotes the in-depth application of the viscoelastic theory in the earth science.

The application discloses a method for predicting the characteristics of a slurry membrane closed gas and stratum deformation of a shield with pressure opening, and belongs to the technical field of tunnel engineering. Based on the Biot poroelasticity mechanics framework, a fluid-solid coupling simulation model of a slurry membrane-soil composite system is established, the dispersing effect of high-pressure gas on interstitial water is characterized by a water holding capacity function, and the whole process of gas breaking through the slurry membrane and seeping to the ground surface and the stratum deformation response are reproduced. By preparing slurry and collecting stratum samples, the porosity, density, permeability coefficient, elastic modulus, Poisson's ratio and soil water characteristic curve parameters are obtained through permeation, triaxial, water holding capacity and other tests, and the test parameters are assigned to a geometric model established according to the engineering burial depth, shield diameter and underground water level; under the boundary conditions of setting the initial displacement of self-weight, the pore water pressure distribution of the underground water level and the transition of the excavation face from slurry support to gas pressure support, numerical calculation is carried out under different gas pressures, slurry membrane thicknesses, burial depths and underground water levels, and the high-pressure gas seepage path and stratum deformation are predicted. The technology can reveal the failure mechanism of the slurry membrane closed gas performance and the development law of the stratum deformation, and provides a theoretical basis and technical support for the support gas pressure design of the shield with pressure opening.

The application discloses a cylindrical curved surface composite plate based on a zero Poisson's ratio honeycomb core and a preparation method thereof. The composite plate comprises an upper curved surface plate, a lower curved surface plate and an intermediate sandwich honeycomb core. The honeycomb core is formed by parallel arrangement and mutual splicing of multiple corrugated plates with the same cross section profile in the same direction. The cross section of the corrugated plate is composed of periodically repeated 'concave-convex' units, and the concave angle alpha and the convex angle beta of the unit satisfy alpha+beta=180°. Two corrugated plates are spliced in a mirror-symmetrical manner, so that the concave parts are mutually attached to form a half-concave hexagonal honeycomb grid array, and the zero Poisson's ratio characteristic is exhibited. The honeycomb core solves the problem that the traditional honeycomb core must be processed twice when forming a curved surface, can realize high-precision one-time attachment with a single-curvature curved surface, and completes the formation of a cylinder with an arbitrary curvature radius. Meanwhile, the honeycomb core has the advantages of light weight, high strength, batch manufacturing and low cost, and is suitable for fields of aerospace, rail transportation and building.

This invention discloses a reservoir prediction and hydrocarbon detection method based on P-wave and S-wave spectral decomposition, comprising the following steps in sequence: S1. Obtaining P-wave data volume A and S-wave data volume B; S2. Decomposing P-wave data volume A and S-wave data volume B using P-wave seismic interpretation and S-wave seismic interpretation respectively, obtaining P-wave tuned volume X and S-wave tuned volume Y; S3. Picking the tuning frequencies of P-wave tuned volume X and S-wave tuned volume Y respectively; S4. Calculating the P-wave / S-wave velocity ratio and Poisson's ratio using the tuning frequencies of P-wave tuned volume X and S-wave tuned volume Y; S5. Performing reservoir prediction and hydrocarbon detection using the P-wave / S-wave velocity ratio and Poisson's ratio. This invention only uses P-wave and S-wave spectral decomposition technology to calculate the P-wave / S-wave velocity ratio and Poisson's ratio for reservoir prediction and hydrocarbon detection, without the need for complex procedures. The method is simple, low-cost, easy to master and promote, and still applicable to areas with low exploration levels.

The application discloses a rock uniaxial compression test data processing method, system, device and medium, relates to the rock mechanics technical field, and includes the following steps: acquiring rock uniaxial compression test data collected through a rock mechanics testing machine, intercepting and processing the rock uniaxial compression test data according to a preset extreme value data intercepting method to obtain target test data; fitting the target test data to obtain a stress-strain curve after fitting, acquiring an instantaneous change rate of stress corresponding to strain in the stress-strain curve after fitting, and intercepting a target fitting curve whose instantaneous change rate meets a preset elastic stage data condition; and performing double linear regression analysis on the target fitting curve in axial strain-stress and radial strain-axial strain respectively to obtain an elastic modulus result and a Poisson's ratio result of the rock uniaxial compression test data. Through automatic processing of the flow, human error is avoided, and the efficiency, accuracy and reliability of rock uniaxial compression test data processing are improved.