...Catastrophicthermo—plastic shear）或绝热剪切理论（Adiabatioshear theory）和周期脆性断裂理论（Periodic brittlefracture）吲。
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为研究初始裂缝尖端起裂的条件和所需注水压力，依据断裂力学的复合型裂纹的脆性断裂理论，建立了裂缝尖端力学模型，给出了计算方法。
For researching crack initiation condition and water injection pressure needed, this paper built up a mechanics model of crack tip based on crisp fracture theory of compound crack.
利用弥散裂缝理论，提出了压实黏土拉伸状态下的脆性断裂模型。
Based on the smeared cracking theory, a brittle fracture model for tensile state of compacted cohesive soil is proposed.
综述和简要评价了晶界偏聚和材料脆性断裂之间关系的理论研究进展情况。
An overview of the recent progress in the theoretical study of relationship between grain-boundary segregation and brittle fracture is provided.
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