J-integral under transient temperature state

✍ Scribed by Kang Yong Lee; Jeong Soo Park

• Publisher: Elsevier Science
• Year: 1992
• Tongue: English
• Weight: 637 KB
• Volume: 43
• Category: Article
• ISSN: 0013-7944
• DOI: 10.1016/0013-7944(92)90023-8

✦ Synopsis

Alxstrrct-For a cracked plate under a transient temperature distribution, the J-integral is expressed in the form of a line integral by using the convolution integral. The J,-integral is calculated for a center-cracked steal plate under thermal and mechanical loading conditions and the calculated values are in good agreement with previous results. The effect of the inertia term on the &integral is negligible for a steel but not for a glass. For the glass plate, the rates of J,-integral value to time increase if the values of material properties such as specific heat, thermal conductivity, thermal diffusivity and Young's modulus as well as crack length and temperature difference on the cracked edge increase.