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利用电液伺服材料试验机和专门研制的加长摆杆测力冲击试验机,测定了35CrMnSiA钢动态断裂韧度KId,研究了不同尺寸试样满足平面应变状态的条件以及应变率对KId的影响.
The dynamic fracture toughness KId of 35CrMnSiA steel was measured by using the electro-hydraulic servo material testing machine and the specially designed extended pendulum force-measuring impact test machine. The effects of different size specimens on the plane strain state and the influence of strain rate on KId were studied.