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- W2315035116 abstract "This paper presents research on the development of a simulation method for the study of the mechanisms of intergranular crack nucleation and propagation in polycrystal metals on the mesoscale. Microstructural geometry models were built randomly using Voronoi techniques. Based on these grain structure geometry models, two-dimensional grain structure finite element models were created using a Patran Command Language (PCL) program. Techniques for the implementation of the cohesive elements between grain boundaries were developed in PCL for the generation of two-dimensional cohesive models. Simulations on intergranular crack nucleation and evolution along grain boundaries using two-dimensional finite element cohesive models were carried out on the mesoscale level. Several aspects that affect the crack nucleation and propagation were studied, which included random grain geometries, grain boundary misorientations, grain boundary peak strength, grain boundary fracture energy, grain properties, and grain plasticity. The simulations demonstrated that the cohesive model is a useful and efficient modeling tool for the study of the intergranular crack nucleation and evolution on the mesoscale level. The simulation results showed that the factors studied have large impacts on intergranular crack nucleation and evolution based on the current model capabilities and conditions." @default.
- W2315035116 created "2016-06-24" @default.
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- W2315035116 date "2011-05-31" @default.
- W2315035116 modified "2023-09-27" @default.
- W2315035116 title "Simulation of intergranular crack nucleation and evolution in polycrystal metals on mesoscale" @default.
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- W2315035116 doi "https://doi.org/10.2495/cmem110521" @default.
- W2315035116 hasPublicationYear "2011" @default.
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