Probing out-of-plane anisotropic plasticity using spherical indentation: A numerical approach

Probing out-of-plane anisotropic plasticity using spherical indentation: A numerical approach
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使用球形压痕探测面外各向异性塑性:数值方法

DOI:
10.1016/j.commatsci.2013.05.020
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发表时间:
2013-11
影响因子:
3.3
通讯作者:
Chen, Xi
Chen, Xi
中科院分区:
材料科学3区
文献类型:
--
作者:
Yonezu, Akio;Tanaka, Masanori;Kusano, Ryota;Chen, Xi

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提出了一种基于单球压痕的离面各向异性塑性性能评价方法。对于塑性各向异性材料,其性能(即屈服应力)在不同的垂直方向(如面内和面外)是不同的,所提出的方法对于区分各向异性属性是有效的。对于球形压痕,压痕曲线取决于塑性各向异性(即不同方向上的屈服应力比)。通过广泛的有限元分析,将压痕响应与压痕几何联系起来,建立了无因次函数,从而推导出各向异性塑性性能。通过数值实验验证了该方法的有效性。并讨论了该方法的有效性和未来需要解决的问题。
An evaluation method for out-of-plane anisotropic plastic properties is proposed using single spherical indentation. For a plastically anisotropic material, whose properties (i.e. yield stresses) are different among orthogonal directions (e.g. in-plane vs. out-of-plane direction), the proposed method is shown effective for distinguishing the anisotropic properties. Upon spherical impression, the indentation curves are dependent on plastic anisotropy (i.e. the yield stress ratio in different directions). By bridging the indentation response with impression geometry through extensive finite element analyses, dimensionless functions are established in order to deduce anisotropic plastic properties. The effectiveness of the method was investigated by numerical experiments. The validity and future issue were discussed.
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发表时间: 1994-04
期刊: Transactions of the Japan Society of Mechanical Engineers. A
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