Criticality of Damage-Failure Transitions under Dynamic and Fatigue Loading
Statistical theory of evolution of typical mesoscopic defects (microcracks,microshears) revealed specific type of criticality–structural-scaling transitions and allowed the development of phenomenology of damage-failure transition in solids with defects.The key results of statistically based phenomenology are the establishment of characteristic multiscale collective modes of defects responsible for damage-failure transitions under dynamic and fatigue loading.High resolution experiments and structural (SWFM and AFM) study in terms of scaling invariance supported the linkage of the evolution of these modes with material responses in large range of load intensity (dynamic crack propagation,fragmentation statistics,crack path under high cycle (HCF) and very high cycle (VHCF) fatigue).
multiscale damage kinetics collective modes of defects
Oleg Naimark
Institute of Continuous Media Mechanics UB RAS,614013 Perm,Russia
国际会议
北京
英文
1-10
2013-06-16（万方平台首次上网日期，不代表论文的发表时间）