摘要
实验中发现：金属材料拉伸屈服时，其横向应变的输出会有一个突然的跳跃变化；扭转屈服时其两个主应力方向的应变输出也有类似变化经分析，这一现象与滑移变形有关本文对这一现象进行了系统研究，对滑移的产生。
The phenomenon is found that transverse strain of metallic materials occur sudden change on yielding under tension Similar phenomenon is found on principal strain under torsion The analyses show that the phenomenon is related to slip In this paper, the phenomenon is investigated systematically and new point of beginning and transmission of slip and determination of yield stress is presented
