Transient Thermoelastic Analysis of a Penny-shaped Crack in a Solid Cylinder Using the Non-Fourier Heat Conduction Theory

摘要：

　　This paper analyzes the transient thermal stress intensity factor in a long solid cylinder with a penny-shaped crack using the non-Fourier heat conduction theory.The surface temperature of the cylinder is suddenly changed.The one-dimensional hyperbolic heat conduction equation is solved analytically and the axial thermal stress for the un-cracked cylinder is obtained in a closed form.Then the mixed boundary value problem in the cylindrical coordinate system is solved using the Fourier and Hankel transforms.A singular integral equation is derived by defining a dislocation density function over the crack faces when solving the problem.The transient thermal stress intensity factors are obtained by solving the singular integral equation numerically.Finally,the influences of thermal relaxation time upon transient temperature distributions,and stress intensity factors are analyzed.

关键词： Penny-shaped Crack Singular Integral Equation Thermal Stress Solid Cylinder Non-Fourier Heat Conduction Model

作者: Jiawei FU Zengtao CHEN Linfang QIAN

作者单位: Department of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing,Jiangsu,Ch Department of Mechanical Engineering,University of New Brunswick,Fredericton,NB,Canada E3B 5A3

会议类型: 国际会议

会议名称: The 5th International Conference on Mechanical Engineering and Mechanics(第五届国际机械工程与力学会议)

会议地点: 江苏扬州

会议语种:英文

页码: 95-100

在线出版日期: 2014-08-21（万方平台首次上网日期，不代表论文的发表时间）