A computational model of ceramic microstructures subjected to multiaxial dynamic loading. (English) Zbl 1013.74055
From the summary: We present a model for the dynamic finite element analysis of ceramic microstructures subjected to multiaxial dynamic loading. This model solves an initial-boundary value problem using a multibody contact model integrated with interface elements to simulate microcracking at grain boundaries and subsequent large sliding, opening and closing of microcracks. An explicit time integration scheme is adopted to integrate the system of spatially discretized ordinary differential equations. Finally, we carry out a systematic parametric study of the effect of interface element parameters, grain anisotropy, stochastic distribution of interface properties, grain size and grain morphology.
MSC:
| 74M25 | Micromechanics of solids |
| 74S05 | Finite element methods applied to problems in solid mechanics |
| 74R10 | Brittle fracture |
Keywords:
damage kinetics; dynamic finite element analysis; ceramic microstructures; multiaxial dynamic loading; initial-boundary value problem; multibody contact; interface elements; microcracking; explicit time integration scheme; parametric study; grain anisotropy; grain size; grain morphologyReferences:
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