Nanoindentation has been widely used to evaluate and test material properties, we utilize the unloading curves of an indentation test to extract the hardness and reduced modulus of the material.
纳米压痕技术广泛用于材料力学性能的评估与测试，利用压痕的加卸载曲线可分析得到材料的硬度和折合模量等力学参数。
The unloading deformation modulus can be expressed as the tangent modulus at any time; and it can be obtained through the test results.
任一时间的卸荷变形模量仍可表示为切线模量，并可通过试验成果推导得出；
In the calculation of soil heave, the deformation modulus is obtained by taking the unloading path as the basic stress path and the effect of dewatering is not taken into account.
目前对于深基坑的回弹量计算，都是以基坑开挖卸荷为基本应力路径获取变形模量，并未考虑降水的影响。
In the calculation of soil heave, the deformation modulus is obtained by taking the unloading path as the basic stress path and the effect of dewatering is not taken into account.
目前对于深基坑的回弹量计算，都是以基坑开挖卸荷为基本应力路径获取变形模量，并未考虑降水的影响。
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