论文部分内容阅读
为了研究X120(827 MPa)钢管的爆破容量从而正确评估钢管的结构性能,进行了一系列的全尺寸试验和有限元分析,同时进行了爆破和断裂止裂研究,进行了全尺寸止裂试验以评估X120钢管材料本身的止裂能力。爆破试验和分析的结果表明,该X120钢管有很强的抗内压能力。试验所讨论的模型未预测到X120管线钢管固有裂纹止裂所需要的韧性,但是,在不太严格的设计情况下,对于有固有裂纹止裂能力的X120钢管可能具有足够的止裂韧性。
In order to study the blasting capacity of X120 (827 MPa) steel tube to evaluate the structural performance of steel tube correctly, a series of full-scale tests and finite element analysis were carried out. At the same time, blasting and fracture-arresting studies were carried out and full- Assess the ability of X120 steel pipe to crack itself. The result of blasting test and analysis shows that the X120 steel pipe has a strong resistance to internal pressure. The models discussed in the tests did not predict the toughness required for crack arresting of X120 line pipe inherent cracks, however, X120 pipe with inherent crack arrestability may have sufficient fracture toughness under less stringent design conditions.