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Micromechanical finite element calculations of temperature and void configuration effects on void growth and coalescence. (English) Zbl 0969.74596
From the summary: We present micromechanical finite element results that quantify coalescence effects based upon temperature and different spatial arrangements of voids. A critical intervoid ligament distance is proposed to define void coalescence that is derived from micromechanical simulations in which void volume fraction evolves as a function of strain. Several parameters are varied using the temperature and strain rate internal variable plasticity model of Bammann-Chiesa-Johnson to determine the coalescence effects.

MSC:
74S05 Finite element methods applied to problems in solid mechanics
74M25 Micromechanics of solids
74C10 Small-strain, rate-dependent theories of plasticity (including theories of viscoplasticity)
74F05 Thermal effects in solid mechanics
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