On the Influence of Material Parameters in a Complex Material Model for Powder Compaction

被引：13
|
作者：
Staf, Hjalmar [1 ,2 ]
Lindskog, Per [2 ]
Andersson, Daniel C. [3 ]
Larsson, Per-Lennart [1 ]
机构：
[1] Royal Inst Technol, Dept Solid Mech, S-10044 Stockholm, Sweden
[2] Sandvik Coromant AB, R&D, SE-12680 Stockholm, Sweden
[3] Inspecta Sweden AB, Box 30100, S-10425 Stockholm, Sweden
来源：
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE | 2016年 / 25卷 / 10期
关键词：
constitutive model; material characterization; powder compaction; real inserts; sensitivity analysis; BEHAVIOR;
D O I：
10.1007/s11665-016-2294-y
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Parameters in a complex material model for powder compaction, based on a continuum mechanics approach, are evaluated using real insert geometries. The parameter sensitivity with respect to density and stress after compaction, pertinent to a wide range of geometries, is studied in order to investigate completeness and limitations of the material model. Finite element simulations with varied material parameters are used to build surrogate models for the sensitivity study. The conclusion from this analysis is that a simplification of the material model is relevant, especially for simple insert geometries. Parameters linked to anisotropy and the plastic strain evolution angle have a small impact on the final result.
引用
收藏
页码：4408 / 4415
页数：8
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