S. Hossain, G. Singh, E. Haque, M. Nishat, E. Tarif, P. K. Mukhopadhyay
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引用次数: 0
摘要
弹性模量是机械光谱学的核心,用于研究纯金属和合金的致动性能、使用寿命、可靠性和稳定性。本研究讨论了利用静电力测量铜(99.99%)、铝(99.99%)和镍(99.99%)等纯金属弹性特性的原型系统。样品通过冷轧处理,制成厚度为 10-100 微米的试样。提供 1 至 370 V 直流可变电位差,从而对试样施加可变静电力。整个系统专注于微观到宏观层面的测量,并由一台功能强大的光学显微镜对偏转进行评估。目前的系统已被用于估算试样的弹性模量,然后将其与著名的拉伸应力应变测试方法所获得的弹性模量进行比较。最后,开发了测量弹性模量的实验原理,以便对磁场、激光和/或热量等外部刺激诱导的金属材料进行进一步研究。
Electrostatic Micro-Actuation System to Evaluate the Elastic Moduli of Metals with the Application of DC Voltage
Elastic modulus is the core of mechanical spectroscopy to study the actuation-based performance, lifetime, reliability, and stability of pure metals as well as alloys. In this investigation, a prototype system has been discussed for measuring the elastic properties of pure metals such as Cu (99.99%), Al (99.99%), and Ni (99.99%) using electrostatic force. The samples were processed by cold rolling producing specimens of 10–100 microns thickness. A variable potential difference ranging from 1 to 370 V DC was supplied, thus applying a variable electrostatic force to the specimen. The whole system is concentrated on the measurement of micro- to macroscale levels, and a powerful optical microscope evaluates the deflection. The current system has been used to estimate the samples' elastic moduli and then compare it with those obtained by the well-known tensile stress–strain testing method. Finally, the experimental principle of measuring elastic modulus was developed to conduct further research on the metallic materials that are induced by external stimuli like magnetic fields, lasers, and/or heat.
期刊介绍:
Experimental Techniques is a bimonthly interdisciplinary publication of the Society for Experimental Mechanics focusing on the development, application and tutorial of experimental mechanics techniques.
The purpose for Experimental Techniques is to promote pedagogical, technical and practical advancements in experimental mechanics while supporting the Society''s mission and commitment to interdisciplinary application, research and development, education, and active promotion of experimental methods to:
- Increase the knowledge of physical phenomena
- Further the understanding of the behavior of materials, structures, and systems
- Provide the necessary physical observations necessary to improve and assess new analytical and computational approaches.