Topic
von Mises yield criterion
About: von Mises yield criterion is a research topic. Over the lifetime, 4374 publications have been published within this topic receiving 82642 citations. The topic is also known as: Von Mises stress.
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TL;DR: In this article, a version of the smooth particle hydrodynamics (SPH) method suitable for modeling solids is described, which includes strength and implements a von Mises yielding relation for stresses beyond the Hugoniot elastic limit.
404 citations
Book•
01 Jan 2005
TL;DR: In this article, the integration of von Mises Plasticity into Finite Element Code is discussed. But the integration is restricted to the Duva and Crow Model and not to the TMF model.
Abstract: 1. Microplasticity 2. Continuum Plasticity 3. Kinematics of Large Deformations and Continuum Mechanics 4. The Finite Element Method for Static and Dynamic Plasticity 5. Implicit and Explicit Integration of von Mises Plasticity 6. Implementation of Plasticity Models in to Finite Element Code 7. Superplasticity 8. Porous Plasticity: the Duva and Crow Model 9. Creep in an Aero-Engine Combustor Material 10. Cyclic Plasticity, Creep and TMF A. Elements of Tensor Algebra B. Fortran Coding available via the OUP web site
399 citations
TL;DR: In this article, the growth of grain-boundary cavities by power-law creep, under multi-axial stress states, is estimated by approximating the growth time to fracture at constant stress by t f =t n+ɑ/n+1)ess1n(1/(n+ 1)f i ) where t n is the nucleation time (the time at which the voids first appear), ess is the steady-state creep rate, n the creep exponent and f i is the original area fraction of cavities.
Abstract: Approximate methods are used to calculate the growth of grain-boundary cavities by power-law creep, under multi axial stress states. The time to fracture at constant stress is given by t f =t n+ɑ/n+1)ess1n(1/(n+1)f i )where t n is the nucleation time (the time at which the voids first appear), ess is the steady-state creep rate, n is the creep exponent and f i is the original area fraction of cavities. The quantity α is defined by:ɑ=1/sinh-{2(n-½)/(n½)P/σe}where p is the hydrostatic pressure and σe the von Mises equivalent stress. Differential equations are given which allow the times and the strains to failure under variable loading histories to be calculated.
391 citations
TL;DR: A coupled constitutive model of viscoplasticity and ductile damage for penetration and impact related problems has been formulated and implemented in the explicit finite element code LS-DYNA.
Abstract: A coupled constitutive model of viscoplasticity and ductile damage for penetration and impact related problems has been formulated and implemented in the explicit finite element code LS-DYNA. The model, which is based on the constitutive model and fracture strain model of Johnson and Cook, and on continuum damage mechanics as proposed by Lemaitre, includes linear thermoelasticity, the von Mises yield criterion, the associated flow rule, non-linear isotropic strain hardening, strain-rate hardening, temperature softening due to adiabatic heating, isotropic ductile damage and failure. For each of the physical phenomena included in the model, one or several material constants are required. However, all material constants can be identified from relatively simple uniaxial tensile tests without the use of numerical simulations. In this paper the constitutive model is described in detail. Then material tests for Weldox 460 E steel and the calibration procedure are presented and discussed. The calibrated model is finally verified and validated through numerical simulations of material and plate perforation tests investigated experimentally.
383 citations
TL;DR: In this paper, it was shown that amorphous metal alloys obey a Von Mises yield criterion, which has implications in determining the micromechanisms of plastic deformation in these materials.
Abstract: Mechanical tests have been performed on bulk amorphous metal alloys to determine their constitutive behavior. Based on the experimental results, it appears that amorphous metal alloys obey a Von Mises yield criterion. This result has implications in determining the micromechanisms of plastic deformation in these materials.
380 citations