2018
DOI: 10.3390/met8070479
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Local Monte Carlo Method for Fatigue Analysis of Coarse-Grained Metals with a Nanograined Surface Layer

Abstract: Abstract:The fatigue resistance of coarse-grained (CG) metals can be greatly improved by introducing a nanograined surface layer. In this study, the Weibull distribution is used to characterize the spatially-random fracture properties of specimens under axial fatigue. For the cylindrical solid specimen, the heterogeneity of element sizes may lead to unfavorable size effects in fatigue damage initiation and evolution process. To alleviate the size effects, a three-dimensional cohesive finite element method comb… Show more

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“…Compared with the CA method, general FEM emphasizes simulating macroscopic stress–strain fields, temperature fields, etc., during material deformation and heat treatment processes, but it struggles to simulate changes in microstructure. Therefore, the FEM is often combined with the CA method [ 22 , 23 ], the MC method [ 24 , 25 ] and the PF method [ 26 ] to create new models that can simulate microstructure.…”
Section: Ca Characteristics and Modeling Steps For Microstructure Sim...mentioning
confidence: 99%
“…Compared with the CA method, general FEM emphasizes simulating macroscopic stress–strain fields, temperature fields, etc., during material deformation and heat treatment processes, but it struggles to simulate changes in microstructure. Therefore, the FEM is often combined with the CA method [ 22 , 23 ], the MC method [ 24 , 25 ] and the PF method [ 26 ] to create new models that can simulate microstructure.…”
Section: Ca Characteristics and Modeling Steps For Microstructure Sim...mentioning
confidence: 99%