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Method and device for solving static thermoelasticity problem of isotropic solid material

A solid material, isotropic technology, applied in the field of static thermoelastic problem solving, can solve problems such as difficult arrangement

Active Publication Date: 2020-01-17
WUHAN UNIV
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Problems solved by technology

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

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  • Method and device for solving static thermoelasticity problem of isotropic solid material
  • Method and device for solving static thermoelasticity problem of isotropic solid material
  • Method and device for solving static thermoelasticity problem of isotropic solid material

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[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 a static thermoelasticity problem of an isotropic solid material. The method comprises the steps of establishing a numerical model of a to-be-solved structure based on material parameters, gridding scores, grid types and boundary condition information of the actual to-be-solved structure, and adding the material parameters and the boundary condition information to nodes on each unit of the numerical model; establishing strain and stress equations including a relation equation between the total strain and stress of the isotropic elastomer material and a stress equation; further, establishing a displacement integral equation; establishing an internal stress integral equation; converting domain integrals in the displacement integral equation and the internal stress integral equation into boundary integrals; establishing a solving matrix throughout the integral equation, and performing discretization and integration to obtain a matrixequation; and then, obtaining change data of the boundary and the internal point of the model by utilizing a Gaussian elimination solution method, and taking the change data as change data of the boundary and the internal point of the to-be-solved structure.

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, a large number of glass materials will be used on the exterior of many large landmark buildings. Glass materials are isotropic materials, so the safety of glass structures needs to be paid more attention to. Among the factors that affect the safety of...

Claims

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Application Information

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