Assessment of C-integral for functionally graded materials

摘要：

In this paper, a simple method had been proposed to estimate the creep C-integral for functionally graded materials (FGM) where the crack was parallel to the material gradient. The steady-state C -integral and the transient C(t)-integral were estimated by the proposed method. Finite element analyses had verified the proposed method almost had the same accuracy as homogeneous materials. The proposed method is suited to the unidirectional variation in the material properties and independent on the graded-variation law of the material properties and the material model. For complex cases, it can be used based on the reference stress method.

关键词： C(t)-integral C*-integral Functionally graded materials FGM

作者: Huan-Sheng Lai Kee Bong Yoon Shan-Tung Tu

作者单位: Department of Mechanical Engineering,Chung Ang University, 221 Huksuk Dongjak, Seoul 156-756, Korea Department of Mechanical Engineering, Chung Ang University, 221 Huksuk Dongjak, Seoul 156-756, Korea East China University of Science and Technology, Shanghai 200237, China

会议类型: 国际会议

会议名称: 2012 International Symposium on Structural Integrity 2012国际结构完整性学术研讨会 ISSI 2012

会议地点: 济南

会议语种:英文

页码: 317-321

在线出版日期: 2012-10-31（万方平台首次上网日期，不代表论文的发表时间）