摘要
介绍材料力学实验中的微机自动测试系统及其测试:真应力应变全程曲线和屈服极限σ_s,强度极限σ_b、延伸率δ、颈缩率ψ的自动测试方法。并结合实例说明了软件和横向位移传感器的结构设计。
This paper mainly deals with a way of automatic measurement of the actual stress-strain curve, limit of yielding (σ(?)) , Limit of intensity (σb) , specific elongation (δ) neck-down centag (ψ). In addition, the characteristics of the binding testing structural design of transversal strain sensor and program are given with examples.
关键词
材料力学
真应力
真应变曲线
测试
actual stress
actual strain
stretching-contraction characteristic
quasi-static process
A/D converter
