Determination of Elastic-Plastic Properties of Metallic Thin Wires by Small-Span Bending Test
Determination of Elastic-Plastic Properties of Metallic Thin Wires by Small-Span Bending Test
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发表时间：
2013-05
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通讯作者：
H. Tohmyoh;M. Akanda;H. Takeda;M. Saka
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作者：
H. Tohmyoh;M. Akanda;H. Takeda;M. Saka
提出了一种基于小尺度弯曲的细金属丝横向力学性能测试方法。首先通过利用焦耳加热操纵在衬底上制备的线的几何配置重新布置用于测试。用两个相对的探针在导线局部区域施加小跨度的弯曲载荷，并用电容传感器测量作用在加载尖端上的小力。由实验得到的载荷-位移关系，成功地确定了细钢丝的杨氏模量和屈服强度。
A mechanical testing methodology for thin wires based on small-scale bending under lateral load is reported. Geometrical configurations of the wire prepared on a substrate are firstly rearranged for the testing by manipulating it utilizing Joule heating. A small-span bending load is applied at the local area of the wire with two opposite probes, and the small force acting on the loading tip is measured with a capacitance sensor. From the load-displacement relationships obtained by the experiments, Young’s modulus and yield strength of the thin wire are successfully determined.