Paper Title:

The Stress Analysis of Pressurized Cylindrical Shell with a Surface Crack under Laser Irradiation

Periodical Applied Mechanics and Materials (Volume 160)
Main Theme Advances in Intelligent Structure and Vibration Control
Edited by Aimin Yang and Wenjiang Du
Pages 69-73
DOI 10.4028/www.scientific.net/AMM.160.69
Citation Li Ping Du et al., 2012, Applied Mechanics and Materials, 160, 69
Online since March, 2012
Authors Li Ping Du, Hong Wang, Yu Xia Tong
Keywords Cylindrical Shell, Dynamic Fracture, Finite Element Method (FEM), Stress Intensity Factor (SIF), Surface Crack
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Abstract

For the structure failure of pressurized cylindrical shell under laser irradiation, studied with axial semi-elliptical surface crack of cylindrical shell under the combined action of laser radiation and pressure, analysis of its thermal force coupling of stress and material for the 30CrMnSiA steel. According to of static fracture toughness and based on theof estimated impact dynamic fracture toughness, the application of finite element method to study the fracture problem under dynamic load. Analyzing the crack initiation propagation and static dynamic initiation based on fracture criterion and dynamic fracture criterion for crack initiation propagation, provides a useful research of the analysis to a certain extent on the structure in thermal force coupling failure mechanism.