高强度钢板的损伤等效弹性常数研究

摘要

根据Kachanov提出用连续度来描述材料损伤的方法，开展了船舶与海洋结构物面临的海水腐蚀、碰撞挂擦造成的损伤现象对高强度钢板性能影响的研究。通过结合Ansys计算结果的比较，获得了修正后的高强度钢板的损伤等效弹性模量、等效泊松比，以及损伤度的计算方法。该方法简便，有一定的工程实用和理论分析的意义。%Based on the continuity damage theory of Kachanov, the behavior of high strength steel plate with damage on ships and ocean structure was studied. The method to calculate the equivalent elastic modulus, equivalent Poisson’s ratios and damage tolerance of the steel plate with damage were acquired. The results of comparing to Ansys show that this method is helpful to the engineering application and theory analysis.