CAJ | 학술논문

针对爆炸加载下花岗岩表现出不同于混凝土的特点,对RDCDMC岩石本构模型中的状态方程进行改进;考虑塑性体积变形对拉伸状态定义的影响并采用主应力拉伸失效准则.微装药填实爆炸应力波的数值模拟结果验证改进的RDCDMC能表征非弹性区花岗岩的响应特点,能用于应力波传播的模拟.
침대폭작가재하화강암표현출불동우혼응토적특점,대RDCDMC암석본구모형중적상태방정진행개진;고필소성체적변형대랍신상태정의적영향병채용주응력랍신실효준칙.미장약전실폭작응력파적수치모의결과험증개진적RDCDMC능표정비탄성구화강암적향응특점,능용우응력파전파적모의.
Based on the properties of rock different from concrete under blasting loads,the state equation of RDCDMC is improved. The volumetric deformation of plasticity is taken into account in the definition of tension and the tension-failure rule is adopted. The results of numerical simulations for explosion-induced wave by tamped mili-explosive charge indicate that the improved model is capable of describing the response of the inelastic region of granite and available in numerical simulations on propagation of stress wave.