Method and device for solving static thermoelastic problems of isotropic solid materials

An isotropic, solid material technology, applied in design optimization/simulation, instrumentation, electrical digital data processing, etc., can solve problems such as difficult alignment, achieve high accuracy and effectiveness, and ensure safety and reliability Effect

Active Publication Date: 2021-05-18
WUHAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Also, the alignment of points in complex domains is not easy

Method used

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  • Method and device for solving static thermoelastic problems of isotropic solid materials
  • Method and device for solving static thermoelastic problems of isotropic solid materials
  • Method and device for solving static thermoelastic problems of isotropic solid materials

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Embodiment Construction

[0072] The method for solving the static thermoelastic problem of isotropic solid materials and the specific implementation of the device according to the present invention will be described in detail below in conjunction with the accompanying drawings.

[0073]

[0074] Such as figure 1 As shown, the method for solving the static thermoelastic problem of isotropic solid materials provided in this embodiment includes the following steps:

[0075] Step 1: Use UG software to establish the model to be solved, input the material parameters, unit type, number of unit divisions and boundary conditions of the model, and then output the model data information file in .inp format. Among them, the method of inputting model parameters and exporting the numerical model is to use the CAE visual interface program associated with UG developed by the individual; the input model parameters specifically include the elastic modulus and Poisson's ratio of the model, and the required input bound...

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Abstract

The invention provides a method and device for solving static thermoelastic problems of isotropic solid materials. The solution method includes: establishing the structure to be solved based on material parameters, grid fraction, grid type and boundary condition information of the actual structure to be solved The numerical model of the numerical model, and add material parameters and boundary condition information to the nodes on each unit of the numerical model; establish strain and stress equations, including: the relationship equation between the total strain and stress of isotropic elastic materials, and the stress equation; further, establish the displacement integral equation; and establish the internal stress integral equation; then, transform the domain integral in the displacement integral equation and the internal stress integral equation into a boundary integral; The matrix equation is obtained by integration; then, the change data of the boundary and internal points of the model can be obtained by using the Gaussian elimination solution method, which is used as the change data of the boundary and internal points of the structure to be solved.

Description

technical field [0001] The invention belongs to the technical field of solid mechanics, and in particular relates to a method and a device for solving static thermoelastic problems of isotropic solid materials. Background technique [0002] Isotropic materials are commonly found in major engineering structures in daily life, and thermoelasticity is a problem often encountered in engineering. For extremely hot or cold environmental conditions, it is very important to analyze the impact of material structures due to temperature changes. Crucially, this issue has also attracted the attention of scholars at home and abroad. Taking the glass commonly used in engineering buildings as an example, in the construction of modern cities, many large landmark buildings will use a large amount of glass materials. Glass materials are isotropic materials. Therefore, the safety of glass structures needs to be paid more attention to. Among the factors that affect the safety of glass, one of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20G06F119/14
Inventor 王桥刘彪周伟马刚
Owner WUHAN UNIV
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