However to the large deformation shaft without crack, general predictive theory has been applied to built up the multi-steps straightening stroke predictive algorithm.
针对单弧度弯曲大变形无裂纹轴校直问题，根据广义预测控制理论，建立了多步校直行程预测算法。
When the tension in the top (created by shrinkage) has built up, it eventually releases - and it releases in the form of a crack.
由于收缩造成的面板张力不断累积，导致裂纹。
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.
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。
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