elastic-plastic mechanics

例句：

1. 1. In elastic-plastic mechanics, stress is a key factor in determining the behavior of materials under loading.
   在弹性塑性力学中，应力是决定材料在加载下行为的关键因素。
2. 2.The study of elastic-plastic mechanics helps us understand how materials respond to deformation and failure.
   弹性塑性力学的研究帮助我们理解材料如何响应变形和失效。
3. 3.Engineers use elastic-plastic mechanics to design structures that can withstand both static and dynamic loads.
   工程师使用弹性塑性力学来设计结构，这些结构可以承受静态和动态载荷。