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Can Young's Modulus And Hardness Of Wire Structural Materials Be Directly Measured Using Nanoindentation?

机译:可以使用纳米压痕直接测量线结构材料的杨氏模量和硬度吗?

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摘要

In recent studies, nanoindentation experiments combined with the Oliver and Pharr method (OP method) are frequently used to measure the mechanical properties of "one-dimensional" structural materials (microanowires and nanobelts) regardless of the corresponding assumptions of the OP method. This article reports the numerical simulation studies of the nanoindentations of wire structural materials on elastic-plastic substrates using dimensional analysis and the finite element method. We find that the measured hardness and Young's modulus of wire structural materials are significantly influenced by their geometries and indenters as well as the mechanical properties of substrates and wires.
机译:在最近的研究中,与OP方法的相应假设无关,纳米压痕实验结合Oliver和Pharr方法(OP方法)经常用于测量“一维”结构材料(微米/纳米线和纳米带)的机械性能。本文使用尺寸分析和有限元方法,对弹塑性结构上金属丝结构材料的纳米压痕进行了数值模拟研究。我们发现,导线结构材料的测量硬度和杨氏模量受其几何形状和压头以及基材和导线的机械性能的影响很大。

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