Modeling Additively Manufactured Metallic Microstructures for Dynamic Response

被引：0

作者：

Mitchell J.A. ^{[1
]}

Silling S.A. ^{[1
]}

Chiu E. ^{[1
]}

Bond S.D. ^{[1
]}

Ruggles T. ^{[1
]}

机构：

[1] Sandia National Laboratories, P.O. Box 5800, Albuquerque, 87185, NM

来源：

Journal of Peridynamics and Nonlocal Modeling | 2023年 / 5卷 / 4期

关键词：

Additive manufacturing; Dynamic response; Microstructures; Modeling; Peridynamics; Spall;

D O I：

10.1007/s42102-022-00093-2

中图分类号：

学科分类号：

摘要：

Additive manufacturing of metals produces material microstructures which are inherently different from those of wrought materials as they arise from a complex temperature history associated with the additive process. Because of complex microstructure morphologies and spatial heterogeneities, material properties are heterogeneous and reflect underlying microstructure. This paper describes a workflow for simulating the dynamic and spall response of additively manufactured metals. The approach consists of simulating microstructures associated with the additive manufacturing process, methods for representing spatially heterogeneous microstructures on a peridynamics discretization, and a specialized material model for handling dynamic material failure under spall conditions. Material properties are spatially distributed onto the discretization so that microstructure effects arising from additive manufacturing can be systematically incorporated into engineering-scale calculations. Model simulations are compared with laboratory flyer plate test data. © 2023, This is a U.S. Government work and not under copyright protection in the US; foreign copyright protection may apply.

引用

页码：497 / 520

页数：23

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