MESOSCALE MODEL FOR SPALL IN ADDITIVELY MANUFACTURED 304L STAINLESS STEEL
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Published:2023
Issue:3
Volume:21
Page:49-67
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ISSN:1543-1649
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Container-title:International Journal for Multiscale Computational Engineering
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language:en
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Short-container-title:Int J Mult Comp Eng
Author:
Silling Stewart A.,Adams David P.,Branch Brittany A.
Abstract
The effect of microstructure on the high-rate tensile failure of additively manufactured (AM) 304L stainless steel is analyzed. The method uses state-based peridynamics with a new model for the time dependence of failure within grains. The model incorporates anisotropy in the elastic and plastic response of the grains. The grain shapes and lattice orientations are initialized directly from electron backscatter diffraction (EBSD) images. The model results are compared to test data from plate impact experiments over a range of impact velocities. A set of parameters for a homogenized material derived from the mesoscale model is demonstrated in the CTH hydrocode.
Subject
Computer Networks and Communications,Computational Mechanics,Control and Systems Engineering
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