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Binary criterion analysis system for preventing plastic collapse and excessive plastic deformation

A plastic deformation and analysis system technology, applied in the direction of instrumentation, design optimization/simulation, calculation, etc., can solve the problems that the input parameters cannot be directly output the evaluation results, etc., and achieve the effect of strong applicability, convenient and simple operation

Inactive Publication Date: 2019-09-20
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Based on the method of preventing plastic collapse and excessive plastic deformation, the elastic-plastic analysis of pressure vessels is carried out. At present, ANSYS software cannot realize the function of inputting parameters and directly outputting evaluation results.

Method used

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  • Binary criterion analysis system for preventing plastic collapse and excessive plastic deformation
  • Binary criterion analysis system for preventing plastic collapse and excessive plastic deformation
  • Binary criterion analysis system for preventing plastic collapse and excessive plastic deformation

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Embodiment Construction

[0026] In order to make the objects and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the examples.

[0027] After the present invention is successfully installed on the ANSYA software, the tool bar of limit_load_window will appear in the ANSYS interface.

[0028] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0029] (1) Establish finite element calculation model, divide mesh and impose constraints through ANSYS software;

[0030] (2) After the previous step is completed, click the limit_load_window toolbar to pop up the parameter input interface;

[0031] The parameters and meanings required when entering the "Binary Criterion" are as follows:

[0032]

[0033]

[0034] (3) After the parameter input is complete, click OK to pop up a loading method selection interface dialog box to determine the loading metho...

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Abstract

The invention discloses a binary criterion analysis system for preventing plastic collapse and excessive plastic deformation. Based on a binary criterion for preventing plastic collapse and excessive plastic deformation and a calculation result of ANSYS elastic-plastic finite element analysis, the invention aims to provide a system for automatically completing analysis design qualification evaluation work of a pressure container component and outputting an evaluation result. The system is developed by using an APDL language in ANSYA software, and a limit_load_window toolbar appears on a classical interface of ANSYS after the installation is successful. When evaluation is carried out by using a binary criterion for preventing plastic collapse and excessive plastic deformation, a load-resistance coefficient method for solving is adopted; a user can carry out specific elastic-plastic evaluation analysis on the pressure vessel component through software. The convenience and accuracy of the load-resistance coefficient method are ensured, the universality of binary criteria is increased for elastic-plastic analysis of different structures.

Description

technical field [0001] The invention relates to a binary criterion method for preventing plastic collapse and excessive plastic deformation in the analysis and design of pressure vessel components and a corresponding analysis system, in particular to elastic-plastic evaluation analysis for load-resistance coefficient method. Background technique [0002] Pressure vessel design is a fast-growing engineering field, which keeps updating design methods following the development of science and technology. With the maturity of elastic theory, plate and shell theory and linear finite element analysis method, in the 1960s, the pressure vessel industry proposed the "elastic stress analysis and design method" based on elastic stress analysis and plastic failure criteria. After entering the 21st century, due to the maturity of plasticity theory and nonlinear finite element analysis method, the European Union standard and ASME code have successively introduced the plasticity analysis de...

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/23
Inventor 段成红池翰林陆明万罗翔鹏黄金豪汪尊武
Owner BEIJING UNIV OF CHEM TECH