Mechanical properties and micro-deformation of sintered metallic hollow sphere structure

被引：18
|
作者：
Fiedler, T. [1 ]
Veyhl, C. [1 ]
Belova, I. V. [1 ]
Bernthaler, T. [2 ]
Heine, B. [2 ]
Murch, G. E. [1 ]
机构：
[1] Univ Newcastle, Sch Engn, Ctr Mass & Thermal Transport Engn Mat, Callaghan, NSW 2308, Australia
[2] Univ Appl Sci Aalen, Dept Surface Engn & Mat Sci, Fac Mech & Mat Engn, D-73430 Aalen, Germany
来源：
COMPUTATIONAL MATERIALS SCIENCE | 2013年 / 74卷
关键词：
Hollow sphere structure; Mechanical properties; Micro-computed tomography; Micro-deformation; Finite element analysis; Experimental analysis; BEHAVIOR;
D O I：
10.1016/j.commatsci.2013.03.010
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper presents experimental and numerical analysis of sintered metallic hollow sphere structure (SMHSS). For the first time, finite element analysis is based directly on the complex material meso-structure captured by micro-computed tomography scanning. In parallel, experimental tests are performed on cylindrical specimens of two different sample sizes in order to test for size effects. A total of 14 samples are subjected to uni-axial compressive loading in order to measure Youngs modulus, the R-70 hysteresis stiffness and the 0.2% offset yield strength. Micro-computed tomography data of two of the tested samples is used for advanced numerical analysis. Numerical findings are compared to experimental data for verification and are used to test for material anisotropy. In addition, finite element analysis is applied to study the micro-deformation inside the sintered metallic hollow sphere structure SMHSS. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：143 / 147
页数：5
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