高压气瓶母材、焊缝和热影响区的平面应变断裂韧度实验研究

Experimental Research on the Critical Opening Displacement of Raw Meterial Weld Seam and Heat-Affected Zone of High Pressure Vessel

通过军用高压气瓶母材、焊缝和热影响区的临界裂纹张开位移试验实验 ,研究了高压气瓶的断裂薄弱环节、平面应变断裂韧度及其参数的分布 ,给出了该部位的平面应变断裂韧度和平面应变断裂韧度对数的分布函数 。

Through the critical opening displacement(COD) experiment of raw material,weld seam and heat affected zone of military high pressure vessels(HPV), we present a method for determining the location of the weak fracture segment,the plane strain fracture toughness and its distribution .