【摘要】 对太钢新研制的船用耐海水腐蚀低合金高强度结构钢15 MnNbVCu 钢的拉伸和低周疲劳性能进行了试验研究。材料的循环应力应变曲线试验是用计算机控制的步增最程序块法完成的。本文还推导了15 MnNbVCu 钢以J 积分为表征参量的裂纹扩展速率公式。更多还原

【Abstract】 The monotonic and low cycle fatigue behaviour of 15 MnNbVCu steel,which is a shipbuildingsteel of corrosion resistant to sea water has been studied.Among these experiments,the cyclestress-strain curve was made by step increment strain amplitude method.The formula betweencrack propagation rates and J integral has been derived.更多还原