Experimental and numerical study of the fatigue behaviour of composite patch reinforced cracked steel plates
作者： Nicholas G. Tsouvalis , Lazarus S. Mirisiotis , Dimitris N. Dimou
DOI: 10.1016/J.IJFATIGUE.2009.04.006
关键词: Surface finish 、 Finite element method 、 Sheet metal 、 Stress intensity factor 、 Structural engineering 、 Fracture mechanics 、 Tola 、 Materials science 、 Stiffness 、 Epoxy 、 Composite material
摘要: Abstract One-side, low cost carbon/epoxy patches were laminated on large scale specimens, which tested and subsequently modelled with the finite element method. An R = −1 cyclic loading was applied patch strains crack propagation rate monitored. The experimental results very encouraging, demonstrating that can effectively slow down growth extend specimens’ life by a factor of up to 2, despite their relatively stiffness ratio. Based some simplified assumptions, FE modelling proved adequate in accurately predicting rate.
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