52results about "Investigating composite materials" patented technology

Provided is a method for determining the adhesive penetration into at least one porous coating material which is pressed with at least one carrier plate and at least one adhesive layer arranged on the carrier plate. The adhesive penetrates or rises into the at least one porous coating material during the pressing process.

Provided is a method for determining the resin penetration into at least one porous coating material which is pressed with at least one carrier board and at least one resin layer arranged on the carrier board. During the pressing process the resin penetrates or rises into the at least one porous coating material.

Provided is a method for the simultaneous determination of parameters, in particular of at least two, three or four parameters, of at least one resin layer applied to at least one carrier material by recording and evaluating at least one NIR spectrum in a wavelength range between 500 nm and 2500 nm, preferably between 700 nm and 2000 nm, more preferably between 900 nm and 1700 nm, and particularly advantageously between 1450 nm and 1550 nm, using at least one NIR measuring head, in particular at least one NIR multimeter head.

Provided is a method for determining the resin penetration into at least one porous coating material which is pressed with at least one carrier board and at least one resin layer arranged on the carrier board. During the pressing process the resin penetrates or rises into the at least one porous coating material.

A computer-implemented method for characterizing a heterogeneous material comprising dispersed components, particularly particulate components, dispersed within a continuous phase of a condensate comprises the steps of: a) providing or selecting a sample of the heterogeneous material to be analyzed; b) acquiring at least one digital image of the sample by a camera of a computing device, particularly a mobile computing device, or by a camera connected to a computing device, particularly a mobile device, and / or by reading into the computing device at least one digital image previously recorded by a stand-alone camera; and c) determining the following characteristics: size parameters, particularly granularity parameters, shape parameters, and the like, determined by image analysis in the at least one digital image. performing image analysis, in particular image particle analysis, of at least one digital image to extract one or more of the following characteristics: particle shape parameters, in particular particle distribution, orientation parameters, in particular particle orientation parameters, surface parameters, in particular particle surface parameters, roughness parameters, in particular particle roughness parameters, packing density, uneven distribution parameters, color, and / or area fraction of components, in particular particulate components; and / or area fraction of continuous phases identified by image analysis in the at least one digital image; d) making one or more of the extracted characteristics in step c) available via a user interface, via a machine interface, and / or on a data storage medium.

A tool for use with Automated Fiber Placement (AFP) machines and systems for use in in-process inspection of composite parts. The AFP system uses a robot, fiber guide, compaction roller, heating system, and an in-process inspection tool. The in-process inspection tool utilizes at least one profiler housed within a support bracket, which mounts the profiler on an AFP head of the AFP system such that the profiler does not interfere with the AFP layup, but outputs an in-process inspection signal representing a surface profile of a fiber strip as it is placed onto a molding for a composite part by the AFP head.

A non-destructive method provided for characterising a component (12) comprising unidirectional continuous carbon fibres having a main x-y plane, the continuous fibres being oriented along the x-axis, the method comprising measuring broadband electromagnetic terahertz radiations in function of time using a plurality of time delay stage positions, the method allowing to retrieve a value of at least one parameter indicative of a carbon content of the component (12).

An inspection method that inspects an adhesion amount of a bed powder on a ceramic compact is provided. Also, a method for manufacturing a ceramic substrate using the inspection method is provided. A method for inspecting an amount of adhered bed powder according to an embodiment includes an adhesion process and an inspection process. The adhesion process includes adhering a bed powder to a surface of a ceramic compact. The inspection process includes inspecting an adhesion amount of the bed powder by using a photoelectric sensor or an image sensor and by detecting a reflected light or a transmitted light of the surface.

The invention relates to a hyperspectral borescope system, and discloses a method and apparatus for inspecting a structure. Electromagnetic radiation is transmitted from an electromagnetic radiation emission system to a surface on a structure. The response to electromagnetic radiation is filtered using a filter located within the borescope inspection housing. The filter is configured to pass several wavelengths in a response to electromagnetic radiation directed toward the surface on the structure. Data from a number of wavelengths passed through a filter is generated using a sensor array. A two-dimensional image of a surface on a structure is generated with a set of graphical indicators that indicate a set of inconsistencies that are not visible to the naked eye. The two-dimensional image is generated using data from the sensor array.

Composite component 1 comprises matrix material 3 interspersed with reinforcement material 2a, 2b and forming surface 4 of the component. Lamp 12 directs incident light 11 having a first wavelength on

A tack assessment system (3000) comprising a computer system (3012) and an analyzer (3014) in the computer system (3012). The analyzer (3014) is configured to control a spectroscopy system (3071) to generate a test electromagnetic scan (3075) for a test section (3027, 3324) of an unconsolidated composite material (3024) at a test location (3219, 3319) in a composite material manufacturing system (3023) in real time during manufacturing of the unconsolidated composite material (3024) by the composite material manufacturing system (3023). The analyzer (3014) is configured to determine a tack quality (3082, 3202, 3302) for the test section (3027, 3324) of the unconsolidated composite material (3024) at the test location (3219, 3319) based on a distance between the test electromagnetic scan (3075) and a number of reference electromagnetic scans (3086) for a number of reference unconsolidated composite materials (3086) having a number of known tack qualities (3087).

Regarding to a fiber-reinforced material formed by deforming a reinforcing material composed of a plurality of fiber layers from an initial shape and molding into a predetermined shape, an identification device, an identification method, and an identification program generate a first data in which a physical quantity distribution inside the fiber-reinforced material is mapped to the initial shape, perform binarization of the first data to generate a second data in which a label identifying the fiber layer is mapped to the initial shape, and map the second data to a predetermined shape, based on a deformation data.

A wind turbine blade inspection system for inspecting a wind turbine blade part, such as a wind turbine blade shell part or a wind turbine blade spar cap, for defects, is described. The wind turbine blade shell part extends in a longitudinal direction, and wherein the system comprises: at least a first image capturing device; conveying means for moving the at least first image capturing device along the wind turbine blade part and configured so as to capture a plurality of acquired images comprising first images of parts of the wind turbine blade part along the wind turbine blade part; and an image processing unit configured to identify an anomaly in the plurality of acquired images and identify whether the anomaly relates to a defect in the wind turbine blade part.

To provide a method for characterizing a ply of fiber having a thermoplastic veil.SOLUTION: The system and the method include acquiring an image of a fiber material comprising strands of fiber and further comprising a veil of thermoplastic filaments, subdividing the image into a plurality of slices, determining an amount of melted filaments depicted within each of the slices, and determining an amount of unmelted filaments depicted within each of the slices.SELECTED DRAWING: None

The present invention provides a method for analyzing a halogenated structure in a composite semipermeable membrane. The method for analyzing a composite semipermeable membrane according to the present invention includes: a step A for immersing the composite semipermeable membrane in a solution containing alkali and at least one of nicotinamide and a derivative thereof; and a step B for performing fluorescence analysis on the solution obtained in step A.

One aspect of the present invention relates to a method for automatically reconstructing the reinforcing structure of a composite material along a reinforcing axis, the method comprising the steps of: - acquiring each image along a cross section perpendicular to the reinforcing axis; - for each acquired image, detecting the centroid and / or circumference of each cross section of the reinforcing line using an artificial neural network; - for at least one acquired image, assigning a label corresponding to the reinforcing line to each detected centroid or each detected circumference; - for each other acquired image, assigning a label corresponding to the centroid to each detected centroid and / or each detected circumference in the acquired reference image; - reconstructing the structure of each reinforcing line from each detected centroid and / or from each detected circumference, each detected centroid and / or each detected circumference having the label of the reinforcing line and a position on the reinforcing axis associated with the acquired image, on which the centroid and / or circumference has been detected.

An example fixture includes a hollow elongate section having a first end and a second end, and the first end has an opening for receiving a lens portion of an imaging device and the second end is structurally configured to brace against a surface of an object being imaged. The hollow elongate section is configured to hold the lens portion of the imaging device at a fixed distance from an object being imaged and to control an amount of incident light on the lens portion. Example methods of configuring an imaging device for capturing images of an object include holding, via a fixture, a lens portion of an imaging device at a fixed distance from an object being imaged, controlling an amount of incident light on the lens portion of the imaging device, and holding a calibration object in a field of view of the imaging device.

A method may include measuring, by an NIR device, a first near-infrared (NIR) spectrum at an edge of a composite panel formed using a blend of paper fragments and plastic fragments, measuring, by the NIR device, a second NIR spectrum at the edge of the composite panel, aggregating, by a controller of the NIR device, the first and second spectra to obtain an aggregated spectrum, and comparing the aggregated spectrum to calibration data to determine a plastic composition of the composite panel.

The application relates to the field of material organization control and heat treatment, in particular to a method for simulating white abnormal organization in the center of a thick section CrMo steel component. The specific process of the method is as follows: (1) smelting a steel ingot according to the composition of the thick section CrMo steel component, and forging the steel ingot into a test block; (2) controlling the segregation state of the test block through high-temperature diffusion annealing; (3) confirming that the test block reaches an ideal segregation state by using an electron probe (EPMA); (4) processing the test block into a standard Gleeble sample, and obtaining grain sizes consistent with the white abnormal organization and the surrounding organization in the Gleeble thermal simulation testing machine through heating parameter control; and (5) simulating the white abnormal organization in the Gleeble thermal simulation testing machine through cold speed and stress control. The application can well simulate the white abnormal organization in the center of the thick section CrMo steel component.

The invention relates to a method of manufacturing a composite structure comprising a thin film made of single-crystal silicon carbide, arranged on a carrier substrate made of polycrystalline silicon carbide, comprising the following steps: 1) providing at least one donor substrate made of single-crystal silicon carbide, said donor substrate having a front face and a back face, said front face potentially having defects, called primary defects; 2) checking the quality of said at least one donor substrate using a photoluminescence-like imaging technique to extract a map of the front face, called a first map, listing the primary defects, said primary defects being identified as micro-hole type, complex star stack defect type or point defect type; 3) transferring a thin film obtained from a surface layer of said at least one donor substrate onto a carrier substrate made of polycrystalline silicon carbide to obtain a composite structure and a remaining donor substrate; 4) checking the free surface of the thin film of the composite structure by means of a defect checking technique using ultraviolet laser beam scattering to extract a map of the free surface, called a second map, listing the defects, called secondary defects; 5) rating said composite structure, which comprises comparing said first map and said second map.

The invention discloses a shrinkage detection method of a sheath-core type composite fiber fabric. The method comprises the following steps: acquiring an image and measuring an initial distance; carrying out damp-heat circulation treatment; calculating the shrinkage rate; calibrating a skin-core coupling coefficient; analyzing theoretical shrinkage and deviation; and evaluating the cyclic stability for multiple times. The method overcomes the technical limitation that the existing general detection method can only measure the overall size change and cannot analyze the complex interaction effect of the skin-core structure, realizes the non-contact accurate measurement of the fabric shrinkage rate by introducing the high-precision image marking and full-field strain analysis technology, can identify the local deformation abnormity, and has the advantages of high accuracy and high accuracy. An effective means is provided for positioning potential defects of the skin-core interface; according to the method, a dimensional stability evaluation system oriented to an actual use scene is constructed through multiple times of damp-heat cyclic treatment and combination of variation coefficient evaluation, and the repeated damp-heat stress process of the fabric in the wearing and washing process is effectively simulated.

This invention discloses a method for evaluating the CVD densification effect of carbon-carbon composite materials. First, a long block with a height equal to the thickness of the carbon-carbon composite material is cut along its span. Then, this long block is segmented along both the original span and thickness directions to obtain several block samples. All block samples are prepared according to the testing requirements of an optical microscope to obtain test samples. The test samples are placed on an optical microscope, with the cut surface of the original carbon-carbon composite material as the observation surface. Measurements are taken of the surface and center of the test samples. During the measurement process, a perfectly circular carbon fiber is selected as the observation unit, and the thickness of the deposited carbon on the pyrolytic carbon is measured. The CVD densification effect of the carbon-carbon composite material is then evaluated. This testing method is relatively simple and highly operable.

A method for inspecting a molded article, the method enabling non-destructive inspection of an internal condition of a molded article containing fluorine, and a method for producing a molded article including the inspection method. The method for inspecting a molded article includes a step (A1) of inspecting an internal condition of a molded article having a fluorine content of 30% by mass or more based on image data obtained by imaging the molded article by optical coherence tomography.

To provide a dry detection method capable of detecting dry of a liquid resin in appropriate timing, and a dry detection device.SOLUTION: A dry detection method for detecting dry of a liquid resin containing a solvent includes: a wavelength selecting step of selecting a light absorption wavelength of the solvent; a light source selecting step of selecting a light source including light of the selected wavelength; a light receiving step of receiving light with which the liquid resin is irradiated and which passes through the liquid resin; and a determination step of determining that the solvent is evaporated and dried in a case where a light quantity of light of the wavelength absorbed by the solvent exceeds a predetermined threshold in the light receiving step. A dry detection device 2 includes: a light source 62 including light of the light absorption wavelength of the solvent contained in a liquid resin P; light receiving means 7 for receiving light which is radiated from the light source 62 and passes through the liquid resin P; and determination means 110 which determines whether or not a light quantity Q of the light of the wavelength absorbed by the solvent exceeds a threshold Q9 based on the light quantity Q of light received by the light receiving means 7 to determine that the liquid resin P is dried.SELECTED DRAWING: Figure 3

The disclosure provides a fiber-reinforced resin material having minimal directionality of strength as well as excellent productivity, a method and device for manufacturing a fiber-reinforced resin material whereby a molded article is obtained, and a device for inspecting a fiber bundle group. A method for manufacturing a sheet-shaped fiber-reinforced resin material in which a paste (P1) is impregnated between cut fiber bundles (CF), the method for manufacturing a fiber-reinforced resin material including a coating step applying a coating of a paste (P1) on a first sheet (S11) conveyed in a predetermined direction, a cutting step for cutting a long fiber bundle (CF) using a cutter (113A), a scattering step for dispersing the cut fiber bundles (CF) and scattering the cut fiber bundles (CF) on the paste (P1), and an impregnation step for pressing a fiber bundle group (F1) and the paste (P1) on the first sheet (S11) and impregnating the paste (P1) between the fiber bundles (CF).

Techniques for manufacturing a composite part using a tape laying process are presented. The techniques can include: laying up a preform layer from composite tape; inspecting the preform layer for gaps; comparing the gap measurement with a gap guard band, where the gap guard band is determined by: obtaining anomaly data that includes measurements of fiber that has not been deposited on a respective preform during prior preform lay-up processes; fitting a multi-component model to the anomaly data; simulating a preform manufacture based on the multi-component model; calculating summary statistics on gap width accounting for undetected anomalies; and determining a guard band based on the summary statistics on gap width accounting for undetected anomalies and based on a manufacturing requirement; determining that the preform layer complies with the manufacturing requirement; repeating the laying up, the inspecting, the comparing, and the determining; and heating the preform to form a composite part.

A method for controlling the application of a patch can include the following steps:positioning a patch on a surface to be covered by means of a gripper and with or without partial overlapping with adjacent patches;acquiring by means of an optical control means at least one image of the positioned patch;detecting defects in the positioning of the patch by identifying differences in the thickness of the patch on the surface to be covered based on the at least one image of the positioned patch; andmapping the defects in the positioning of the patch.

The present invention reduces the burden of installing a detection sensor for monitoring a liquid such as a liquid resin. A detection sensor according to the present invention comprises: an optical transmission body group that includes a plurality of optical transmission bodies which each transmit light supplied from a light source; and a thin band-shaped holder that supports the optical transmission body group. The holder is provided with a first holder element that supports one or more optical transmission body groups, on a support surface that expands in a first direction and in a second direction orthogonal to the first direction. The plurality of optical transmission bodies are arranged in the second direction.