SLOW CRACK GROWTH: MACROSCOPIC AND MICROSCOPIC ASPECTS

摘要: ABSTRACT Modern engineering design against fracture in “safety -critical” structures generally is based on the concept of defect- or damage-tolerance, where projected life estimated terms time for an assumed initial defect to propagate some critical size. Accordingly, from a materials standpoint, increased resistance failure can be achieved by retarding sub-critical growth cracks prior final failure. In current paper, overview presented several recent advances understanding salient mechanisms such slow crack growth, involving under both monotonie and cyclic loading at ambient elevated temperatures.