Critical distance for creep crack growth problems
作者： V.N. Shlyannikov
DOI: 10.1016/J.ENGFRACMECH.2017.03.001
关键词: Materials science 、 Composite material 、 Diffusion creep 、 Creep 、 Compact tension specimen 、 Stress intensity factor 、 Critical distance 、 Crack closure 、 Stress relaxation 、 Fracture toughness
摘要: Abstract This article presents a critical distance behavior by modeling creep crack growth in compact tension specimen. Special emphasis is put on the analysis of effect material properties and front shape. For specified geometry specimen considered, governing parameter stress field In, intensity factor fracture process zone distributions along are determined as function length, time nonlinear-viscous properties. Correlation between size based strain energy rate density found.
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