X-ray tomography and finite element simulation of the indentation behavior of metal foams
X-ray tomography and finite element simulation of the indentation behavior of metal foams
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DOI：
10.1016/j.msea.2004.03.091
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发表时间：
2004-12-15
期刊：
影响因子：
6.4
通讯作者：
Rajkovits, Z
中科院分区：
文献类型：
--
作者：
Kásár, C;Maire, E;Rajkovits, Z
利用X射线断层扫描和有限元方法研究了铝基泡沫金属压痕过程中的变形机制。发现变形几乎完全限制在压头下方的球冠形状压实区域。给出了一个解析表达式，该表达式描述了压实区域尺寸随压头直径、压痕深度和泡沫相对密度的变化。有限元模拟结果和计算函数结果相当吻合。 (C) 2004 Elsevier B.V. 保留所有权利。
The deformation mechanisms during indentation of aluminum-based metal foams are examined by use of X-ray tomography and the finite element method. The deformation was found to be almost totally restricted to a spherical cap-shape compacted zone under the indenter. An analytical expression is given which describes the changes in the size of the compacted zone as a function of the diameter of the indenter, the indentation depth and the relative density of the foam. Results of finite element Simulations and the calculated function were found to be in reasonably good agreement. (C) 2004 Elsevier B.V. All rights reserved.