CAJ | 학술논문

分别采用改进了的SHPB被动围压试验方法及一级气炮，研究了水泥砂浆石在准一维应变及一维应变下的动态力学响应。分别得到了水泥砂浆石经摩擦力修正后的动态弹性常数、屈服强度以及高压下含损伤水泥砂浆石的冲击绝热关系。对水泥砂浆石在准一维应变、一维应变、一维应力下的应力-应变关系与高压下静水压缩曲线进行了比较和讨论。发现若以一维应变代替准一维应变，其弹性区模量、 Hugoniot弹性极限等将引入显著的误差。
분별채용개진료적SHPB피동위압시험방법급일급기포， 연구료수니사장석재준일유응변급일유응변하적동태역학향응。 분별득도료수니사장석경마찰력수정후적동태탄성상수、 굴복강도이급고압하함손상수니사장석적충격절열관계。 대수니사장석재준일유응변、 일유응변、 일유응력하적응력-응변관계여고압하정수압축곡선진행료비교화토론。 발현약이일유응변대체준일유응변， 기탄성구모량、 Hugoniot탄성겁한등장인입현저적오차。
The dynamic mechanical behaviors of cement mortar under quasi-one and one-dimensional strain states are studied by using an improved passive confining SHPB method and one stage gas gun respectively. The friction-corrected dynamic elastic constants and the yield strength are calculated. And the shock adiabatics at intense dynamic loading by taking into account the internal damage is obtained. Furthermore the stress-strain curves of cement mortar under three different stress states and the initial behavior of hydrodynamic curve are compared and analyzed. It is shown that the results obtained from the tests with confined pressure are quite different from the results obtained from the gas gun tests, so that a quasi-one dimensional strain test with confined pressure should not be approximately dealt with as an one dimensional strain test.