Mechanical modeling and finite element analysis of porous cast products

被引：0

作者：

VCAD System Research Program, RIKEN, Japan ^{[1
]}

不详 ^{[2
]}

机构：

[1] VCAD System Research Program, RIKEN

[2] Department of Mechanical Engineering, University of Minho

来源：

Seimitsu Kogaku Kaishi | 2008年 / 12卷 / 1273-1277期

关键词：

Aluminum die-cast; Elastic properties; Fatigue; Finite element modeling; Fracture; Porosity; Serial sectioning;

D O I：

10.2493/jjspe.74.1273

中图分类号：

学科分类号：

摘要：

A study was conducted to develop a methodology to perform finite element (FE)-based simulations of the micromechanical response on actual three-dimensional (3D) microstructures. It was demonstrated that the methodology was applicable to other 3D image acquisition techniques, such as X-ray computed tomography. The simplifications performed in image manipulation and voxelization retained the major features of the pores, including their high angular morphology and orientation. A parallelepipedic volume of about 20 &19 &15 mm3 size and average porosity of about 0.05 were extracted from a car engine block made of an aluminum cast alloy to conduct the investigations. The 3D pore morphology was reconstructed from the stack of 3900 serial sections. The simulations were performed on 12 cubic subdomains of the parallelepipedic volume having the size of 3.31&1.77&2.98 mm3 where the porosity volume fraction varied from about 0.022% up to 25%.

引用

页码：1273 / 1277

页数：4

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