【作者】 邵炎林； 何炎平；

【Author】 SHAO Yan-lin, HE Yan-ping (School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiaotong University,Shanghai 200030,China)

【机构】 上海交通大学船舶海洋与建筑工程学院；

【摘要】 利用有限元法对海洋石油工业中典型圆管构件在侧向载荷作用下的凹坑损伤进行了模拟,并对带有凹坑损伤的圆管在轴向压力作用下的极限承载力进行了研究。通过有限元计算结果与试验结果的比较,得到一些有意义的结果。本文还对凹坑区域的残余应力对极限承载力的影响进行了研究,并对凹坑区域的理想化进行了探讨,为海洋结构物的设计和安全评估提供了科学依据。更多还原

【Abstract】 Finite-element method has been used to simulate the denting damage of typical tube in petroleum industry under lateral load, and the ultimate load of dented tube was studied when axial pressure was applied. By comparing the results of finite-element method with test, some significant results have been obtained. This paper also studied the effect of residual stress on ultimate load and discussed the idealization of the dented area, which will provide scientific support reference for offshore structures security assessment.更多还原