In the process of deformation of frozen soil, the unloaded dynamic elastic modulus is not constant, and tends basically to steady after the strain is more than 1%.
冻土的回弹动弹模，在土体应变过程中为非定值，应变大于1%之后趋于稳定，并随测定时的应变速率加大而变大。
It can be used in plastic deformation experiments at various temperatures combined with measuring internal friction Q-1 and dynamic modulus without changing vacuums and temperature conditions.
该装置能够在不改变真空及温度环境条件下，对样品进行大载荷升温变形动态内耗及模量测试。
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