Zongwu Niu1, Yongxing Shen1,*
The International Conference on Computational & Experimental Engineering and Sciences, Vol.26, No.3, pp. 1-1, 2023, DOI:10.32604/icces.2023.09037
Abstract The phase field approach has powerful abilities to simulate complicated fracture behaviors. However, the
requirement of fine mesh near cracks leads to high computational cost, especially for dynamic cases in which
the critical time step is restricted by the smallest element size according to the CFL stability condition. In
this work, the asynchronous variational integrator (AVI) is used to alleviate the high computational cost in
the case of dynamic brittle fracture. The AVI is derived from the discrete Hamilton’s principle with
asynchronous temporal discretization, which allows each element in the mesh to have its own local time
step that is… More >
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