摘要
用电磁法测到了长杆不同位置处的质点速度波形,并运用拉格朗日分析方法进行处理,从而得到了有机玻璃和尼龙1010材料的动态应力应变曲线。这是利用杆波研究材料动态性能的新尝试。
The waveforms of particle velocity at different positions of long bars are measured by use of the electromagnetic method, and are treated with Lagrangian analysis. The dynamic stress-strain curves for PMMA and Nylon 1010 are obtained. This is a new attempt to study dynamic behaviors of materials by using wave propagation method along one-dimensional bars.
基金
国家自然科学基金
关键词
应力波
一维杆波
拉氏分析
材料
long bar experiment, electromagnetic velocity transducer, Lagrangian analysis. wave propagation, dynamic properties of materials.
