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 paper, a finite element (FE) analysis for mid-span deflection, energy absorption and the stresses at critical locations of glass, interlayer and structural sealant are presented.
Abstract: This paper presents a rigorous and a reliable analytical procedure using finite element (FE) techniques to study the blast response of laminated glass (LG) panel and predict the failure of its components. The 1st principal stress (σ11) is used as the failure criterion for glass and the von mises stress (σv) is used for the interlayer and sealant joints. The results from the FE analysis for mid-span deflection, energy absorption and the stresses at critical locations of glass, interlayer and structural sealant are presented in the paper. These results compared well with those obtained from a free field blast test reported in the literature. The tensile strength (T) of the glass has a significant influence on the behaviour of the LG panel and should be treated carefully in the analysis. The glass panes absorb about 80% of the blast energy for the treated blast load and this should be minimised in the design.
46 citations
TL;DR: Based on the Split Hopkinson Pressure Bar (SHPB) device, a new combined compression and shear loading technique is developed by adding cushions with designed oblique surfaces as discussed by the authors, which is calibrated by a series of quasi-static and dynamic experiments.
45 citations
TL;DR: In this paper, the authors derived the fraction of the plastic work transformed into heat from thermodynamic considerations in a large-strain setting, and showed that for elasto-plasticity the fraction follows as a result of the choice of free energy, potential function and yield function.
Abstract: Heat generation due to plastic deformation of metals and steel is studied. Whereas in many investigations it is assumed that the fraction η of the plastic work transformed into heat is constant throughout the deformation process, the fraction η is here derived from thermodynamic considerations in a large-strain setting. It is shown that for elasto-plasticity the fraction η follows as a result of the choice of free energy, potential function and yield function. Taking the stress-strain response and the dissipative properties of the material as basis for calibration, it is shown that the thermodynamic framework of a thermoplastic material is non-unique for the general situation of non-associated plasticity. In the investigation conducted here, the mechanical response and the portion of the plastic work converted into heat (or into stored energy) during plastic deformations is predicted by means of isotropic hardening von Mises plasticity. It is shown that for a situation in which the internal variable is taken as the effective plastic, close fitting to experimental data requires a non-associated format of the evolution law for the internal variable.
45 citations
TL;DR: The aim of this study was to validate the FE model for prefailure and failure modelling, by comparing the computational results with the laboratory observations and failure results, and it is made that validation of FE calculations is essential.
45 citations
TL;DR: In this article, explicit constitutive relations were established for a model problem based on von Mises plasticity with isotropic hardening of two types: local and gradient-enhanced.
45 citations