A moving interface crack between two dissimilar functionally graded strips under plane deformation with integral equation methods |
| |
Authors: | Zhanqi Cheng Danying GaoZheng Zhong |
| |
Affiliation: | a School of Civil Engineering, Zhengzhou University, Zhengzhou 450001, PR China b School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai 200092, PR China |
| |
Abstract: | In this paper a finite interface crack with constant length (Yoffe-type crack) propagating along the interface between two dissimilar functionally graded strips with spatially varying elastic properties under in-plane loading is studied. By utilizing the Fourier transformation technique, the mixed boundary problem is reduced to a system of singular integral equations that are solved numerically. The influences of the geometric parameters, the graded parameter, the strip thickness and crack speed on the stress intensity factors and the probable kink angle are investigated. The numerical results show that the graded parameters, the thicknesses of the functionally graded strips and the crack speed have significant effects on the dynamic fracture behavior of functionally graded material structures. |
| |
Keywords: | Functionally graded material Moving crack Dynamical stress intensity factors Fourier transformation Singular integral equation |
本文献已被 ScienceDirect 等数据库收录! |
|