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Method of Prevention of Fracture of Welded Metal Structural Elements Subjected to Single Dynamic Loads

机译:防止单动载荷作用下焊接金属结构构件断裂的方法

摘要

Method of assessment of fracture toughness of structural materials and their welded joints under the conditions of a single dynamic loading has been suggested on the basis of criterion of a non-linear fracture mechanics δcr^D(CTOD). The regularities of effect of loading rate, determined by parameter δ' (rate of crack tip opening) on the fracture toughness were established. Procedure of prevention of fracture of welded structure elements at a high-strength deforming was recommended.
机译:根据非线性断裂力学δcr^ D(CTOD)的标准,提出了在单一动态载荷条件下评估结构材料及其焊接接头断裂韧性的方法。建立了由参数δ'(裂纹尖端的开口率)决定的加载速率对断裂韧性的影响规律。建议采取预防措施,防止高强度变形时焊接结构元件断裂。

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