Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method and device for predicting crack propagation direction and storage medium

A technology of crack growth and prediction method, applied in the field of numerical analysis of fracture problems, to achieve the effect of improving accuracy

Pending Publication Date: 2021-05-28
INST OF FLEXIBLE ELECTRONICS TECH OF THU ZHEJIANG +1
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above technical problems, this application provides a method, device and storage medium for predicting the direction of crack propagation, so as to improve the accuracy of numerical analysis of nonlinear deformation and fracture problems, and provide new ideas and means for numerical analysis of fracture problems

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and device for predicting crack propagation direction and storage medium
  • Method and device for predicting crack propagation direction and storage medium
  • Method and device for predicting crack propagation direction and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0065] The implementation of the present application will be described by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in this specification.

[0066] In the following description, reference is made to the accompanying drawings, which illustrate several embodiments of the application. It is to be understood that other embodiments may be utilized, and mechanical, structural, electrical, and operational changes may be made without departing from the spirit and scope of the present application. The following detailed description should not be considered limiting, and the scope of the embodiments of the present application is defined only by the claims of the issued patent. The terminology used herein is for describing particular embodiments only and is not intended to limit the application.

[0067] Although in some instances the terms first, second, etc. ar...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to method and device for predicting a crack propagation direction and a storage medium, and the prediction method comprises the steps: calculating a displacement field of a material according to a strain-rotation and decomposition theorem and a meshless method; calculating a stress-strain field according to a calculation result of the displacement field; and calculating the crack propagation direction according to the calculation result of the stress-strain field in combination with a crack propagation criterion. On the basis of a meshless method, the strain-rotation and decomposition theorem is provided, a new crack propagation direction prediction method is formed, the accuracy of numerical analysis of the nonlinear deformation fracture problem can be improved, and a new thought and means are provided for numerical analysis of the fracture problem.

Description

technical field [0001] The present application relates to the technical field of numerical analysis of fracture problems, and in particular to a method, device and storage medium for predicting the direction of crack propagation. Background technique [0002] Fracture problem has always been one of the most important and complex problems in various engineering fields. Especially with the rapid development of advanced materials and structures, fracture analysis becomes even more important. For the fracture problem, analytical solutions can only be obtained in very simple cases, and the approximate calculation of the fracture problem can only be realized by numerical methods in general. [0003] Finite element is one of the commonly used numerical calculation methods in engineering calculation, and the extended finite element method (XFEM) based on finite element is a very common method to deal with crack problems at present. However, the finite element method needs to be pr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G06F30/20G06F17/15G06F17/11G06F17/16G06F119/14
CPCG06F17/11G06F17/15G06F17/16G06F30/20G06F2119/14
Inventor 冯雪周涛付浩然唐瑞涛张柏诚
Owner INST OF FLEXIBLE ELECTRONICS TECH OF THU ZHEJIANG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com