Title :
Crack propagation in matrix with inclusions by BEM
Author :
Huang, Yifeng ; Lei, Jun ; Yang, Qingsheng
Author_Institution :
Coll. of Mech. Eng. & Appl. Electron. Technol., Beijing Univ. of Technol., Beijing, China
Abstract :
A time-domain boundary element method is applied to simulate the matrix crack propagation in composite with inclusions under impact loading. The crack-growth direction is determined by the maximum circumferential stress criterion, and the instantaneous velocity is approached by a bisection technique. New crack-tip elements of inconstant length are added to the moving crack-tip to simulate the unsteady growth at each propagation time step. The interactions of a crack with various clusters of inclusions are investigated.
Keywords :
boundary-elements methods; composite materials; cracks; impact (mechanical); internal stresses; time-domain analysis; BEM; bisection technique; crack-growth direction; crack-tip elements; impact loading; instantaneous velocity; matrix crack propagation; maximum circumferential stress criterion; time-domain boundary element method; Boundary element methods; Finite element methods; Loading; Materials; Numerical simulation; Stress; Time domain analysis; bisection technique; crack propagation; inclusion; time-domain boundary element method;
Conference_Titel :
Mechatronics and Automation (ICMA), 2011 International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-8113-2
DOI :
10.1109/ICMA.2011.5986293
