摘要
文章对结构钢材料(GrNiMoV钢)高速冲击下的断裂行为进行了研究,研究表明断裂过程是一损伤演化过程.得出了GrNiMoV钢断裂机理:一是在晶界三叉点处裂纹成核,沿细晶方向扩展,最终断裂;二是沿绝热剪切带的开裂.
It investigated the fracture behaviours of armour steel（GrNiMoV steel） under high speed shock. It is shown by the results that the steel fracture are damage evolution process, and obtain its fracture mechnisms. GrNiMoV steel fracture mechanism ： first,cross point of three grain-boundary is crack source, cracks propagate along small grain direction, lead to fracture; secondly,fracture through adiabatic shear band.
出处
《太原师范学院学报（自然科学版）》
2007年第3期135-137,共3页
Journal of Taiyuan Normal University:Natural Science Edition
关键词
绝热剪切带
动态断裂
损伤
夹杂
晶界
adiabatic shear band
dynamic fracture
damage
inclusion
grain-boundary
