2001/06/15 by Michael L. Falk, Alan Needleman, A. Needleman +5 · 1 citation
Engineering · Materials Science · Physics and Astronomy · #FOS: Physical sciences #Fluid Dynamics Simulations and Interactions #High-Velocity Impact and Material Behavior #Materials Science (cond-mat.mtrl-sci) #Numerical methods in engineering #cond-mat.mtrl-sci
paper · pdf · doi:10.48550/arxiv.cond-mat/0106304
8 page PDF file, presented at 5th European Mechanics of Materials Conference, March 2001
arxiv created 2001/06/15 · openalex publication_date 2001/06/15 · arxiv updated 2009/11/30 · openalex created_date 2025/10/24 · openalex updated_date 2026/07/28
Finite element calculations of dynamic fracture based on embedding cohesive\nsurfaces in a continuum indicate that the predictions are sensitive to the\ncohesive law used. Simulations were performed on a square block in plane strain\nwith an initial edge crack loaded at a constant rate of strain. Cohesive laws\nthat have an initial elastic response were observed to produce spontaneous\nbranching at high velocity, but to modify the linear elastic properties of the\nbody. As a consequence the cohesive surface spacing cannot be refined\narbitrarily and becomes an important length scale in the simulations. Cohesive\nlaws that are initially rigid do not alter the linear elastic response of the\nbody. However, crack branching behavior was not observed when such a cohesive\nrelation was implemented using a regular finite element mesh.\n