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

Interaction integration method for solving thermal fracture problem of piezoelectric magnetic composite material

A technology of composite materials and integral methods, applied in complex mathematical operations, electrical digital data processing, instruments, etc., can solve problems such as fracture of piezoelectric piezoelectric composite materials, and achieve expanded application range, good applicability and stability, and expanded use range Effect

Active Publication Date: 2022-07-22
HARBIN INST OF TECH
View PDF9 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the deficiencies in the research in the background technology, the present invention aims at the fracture problem of piezoelectric magnetic composite materials containing complex interfaces under thermal load, and provides a solution Interaction Integral Method for Thermal Fracture Problems of Decompressed Voltage-Magnetic Composite Materials

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
  • Interaction integration method for solving thermal fracture problem of piezoelectric magnetic composite material
  • Interaction integration method for solving thermal fracture problem of piezoelectric magnetic composite material
  • Interaction integration method for solving thermal fracture problem of piezoelectric magnetic composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings, but are not limited thereto. Any modification or equivalent replacement of the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention shall be included in the present invention. within the scope of protection.

[0024] The invention provides an interaction integration method for solving the thermal fracture problem of piezoelectric-electromagnetic composite materials, such as figure 1 As shown, the method includes the following steps:

[0025] Step 1: Considering the influence of thermal load, obtain the constitutive equation, kinematic equation and equilibrium equation of piezoelectric magnetic material related to thermal load; Substitute into the J integral form as an auxiliary field. Specific steps are as follows:

[0026] In the absence of physical forc...

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 discloses an interaction integration method for solving the problem of thermal fracture of a piezoelectric magnetic composite material, and the method considers the influence of a thermal load on a constitutive equation of the piezoelectric magnetic composite material and the change of an interaction integration form. Through strict theoretical derivation, a new form of an interaction integration method of the piezoelectric magnetic composite material containing the complex material interface under the thermal load is obtained, so that a method capable of solving the strength factor of the piezoelectric magnetic composite material under the thermal load effect is provided. The interaction integration method disclosed by the invention is applicable to piezoelectric and magnetic materials with complex interfaces, and strict theoretical derivation proves that the material interface does not influence the value of the interaction integration, so that the application range of the traditional interaction integration method is expanded to a great extent. By setting the attributes of the composite material, the calculation of the thermal fracture problem of the piezoelectric magnetic composite material in different arrangement modes can be realized.

Description

technical field [0001] The invention belongs to the technical field of fracture mechanics, and relates to an interaction integration method, in particular to an interaction integration method for solving the stress intensity factor, electric displacement intensity factor and magnetic induction intensity factor of the crack tip of a piezoelectric magnetic composite material under the action of thermal load . Background technique [0002] Piezoelectric magnetic materials have been widely used in the field of smart structures, such as sensors, actuators, aerospace and other fields, due to their excellent magnetoelectric coupling effect. Piezoelectric magnetic material is a kind of composite material that contains both piezoelectric material phase and piezoelectric material phase. In addition to the piezoelectric and piezomagnetic properties possessed by the component phase, it also has a new material property - electromagnetic property. . However, due to the limitation of the...

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): G06F30/20G06F17/15G06F113/26G06F119/14
CPCG06F30/20G06F17/15G06F2119/14G06F2113/26
Inventor 朱帅于红军郝留磊果立成申振闫佳黄灿杰杨宇宁王标
Owner HARBIN INST OF TECH
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