The Shear Response of a Thin Aluminum Layer
The Shear Response of a Thin Aluminum Layer
复制标题
薄铝层的剪切响应
DOI：
10.1115/1.4002210
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
N. Fleck
中科院分区：
文献类型：
--
作者：
V. Tagarielli;N. Fleck
铝层，厚，已扩散结合到氧化铝块，并进行简单的剪切，以确定剪切应力与应变响应层厚度的敏感性。没有显着的厚度对强度的影响，观察和反向加载试验表明各向同性硬化。剪切中的最终失效是由夹层内的微孔聚结引起的，空隙间距与层厚度相当。讨论了这些结果对应变梯度塑性理论的意义。
Aluminum layers,thick, have been diffusion bonded to alumina blocks and subjected to simple shear in order to determine the sensitivity of shear stress versus strain response to layer thickness. No significant thickness effect on strength is observed and reversed loading tests indicate isotropic hardening. Final failure in shear is by microvoid coalescence within the sandwich layer with a void spacing comparable to the layer thickness. The significance of the results for strain gradient plasticity theory is discussed.