irrecoverable deformation

基本解释

It was shown that at all stages of unloading, interparticle sliding occurred, the number of interparticle contacts reduced and irrecoverable deformation of the microstructure occurred.
通过对这些参数的研究表明：在卸载的全过程中，颗粒间相对滑移出现，相互作用的颗粒数减少，系统内部结构产生不可恢复变形。
From many tests it is concluded that the joint loading, unloading and reloading follow hyperbolic responses, and result in irrecoverable closure deformation with hardening of the joints.
试验表明，加卸载应力–变形曲线均可表示为双曲线函数，并且呈现不断硬化的特性，伴随产生法向残余位移。
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