Micromechanical Exploration of the Lade–Duncan Yield Surface by the Discrete Element Method
Sign Up to like & getrecommendations! Published in 2020 at "Geotechnical and Geological Engineering"
DOI: 10.1007/s10706-020-01374-7
Abstract: The Lade–Duncan yield surface has long been known to outperform other yield criteria (e.g., Mohr–Coulomb, Drucker–Prager) for predicting macro-scale failure in non-cohesive granular (pressure-dependent) materials. Such yield criteria are critical for a wide variety of… read more here.
Keywords: yield surface; duncan yield; usepackage; yield ... See more keywords
BBC05 with non-integer exponent and ambiguities in Nakajima yield surface calibration
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Material Forming"
DOI: 10.1007/s12289-020-01545-0
Abstract: Reliable sheet metal forming simulations depend on accurate descriptions of real process conditions. These conditions include material behavior, lubrication systems, tool deformations, press dynamics, and more. Research on material models is the most mature area… read more here.
Keywords: yield surface; integer exponent; bbc05; non integer ... See more keywords
A comparison study of the yield surface exponent of the Barlat yield function on the forming limit curve prediction of zirconium alloys with M-K method
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Material Forming"
DOI: 10.1007/s12289-021-01616-w
Abstract: The forming limit curve (FLC) of zirconium alloys plays a significant role in the fabrications of spacer grid used for nuclear fuel assembly. The theoretical prediction of FLC has provided a convenient method to calculate… read more here.
Keywords: surface exponent; yield; prediction; zirconium ... See more keywords
NURBS plasticity: Yield surface evolution and implicit stress integration for isotropic hardening
Sign Up to like & getrecommendations! Published in 2017 at "Computer Methods in Applied Mechanics and Engineering"
DOI: 10.1016/j.cma.2017.05.017
Abstract: This paper extends the non-uniform rational basis spline (NURBS) plasticity framework of Coombs et al. (2016) to include isotropic hardening of the yield surfaces. The approach allows any smooth isotropic yield envelope to be represented… read more here.
Keywords: yield surface; surface; nurbs plasticity; yield ... See more keywords
Assessment of advanced Taylor models, the Taylor factor and yield-surface exponent for FCC metals
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Plasticity"
DOI: 10.1016/j.ijplas.2018.10.015
Abstract: Abstract High-resolution crystal plasticity-finite element method (CPFEM) simulations are performed to provide new reference values of the Taylor factor M and the isotropic yield surface exponent a for high stacking fault energy face-centred-cubic (FCC) polycrystalline… read more here.
Keywords: taylor factor; surface exponent; taylor; new reference ... See more keywords
Hyperbolic hardening model for quasibrittle materials
Sign Up to like & getrecommendations! Published in 2017 at "International Journal of Solids and Structures"
DOI: 10.1016/j.ijsolstr.2017.05.011
Abstract: Abstract In this study an elastoplastic hardening model for quasibrittle materials is presented. The yield surface exhibits hyperbolic meridians while its shape on the deviatoric plane is described by an elliptic function. The proposed hardening… read more here.
Keywords: yield surface; hyperbolic hardening; quasibrittle materials; model quasibrittle ... See more keywords
A new algorithm for the fast and stable identification of FAY coefficients and its application as a universal platform for yield surface modeling
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Solids and Structures"
DOI: 10.1016/j.ijsolstr.2020.10.007
Abstract: Abstract A new approach is proposed for enabling the exchange and testing of arbitrary yield surface models, solely based on a set of Fourier coefficients. This effectively reduces the implementation efforts to a single generic… read more here.
Keywords: fay coefficients; yield surface; new algorithm; yield ... See more keywords
Influence of yield surface curvature on the macroscopic yielding and ductile failure of isotropic porous plastic materials
Sign Up to like & getrecommendations! Published in 2017 at "Journal of The Mechanics and Physics of Solids"
DOI: 10.1016/j.jmps.2017.07.009
Abstract: Abstract Numerical unit cell models of an approximative representative volume element for a porous ductile solid are utilized to investigate differences in the mechanical response between a quadratic and a non-quadratic matrix yield surface. A… read more here.
Keywords: failure; yield surface; surface; unit cell ... See more keywords
Yield properties of closed-cell aluminum foam under triaxial loadings by a 3D Voronoi model
Sign Up to like & getrecommendations! Published in 2017 at "Mechanics of Materials"
DOI: 10.1016/j.mechmat.2016.10.007
Abstract: Abstract Considering the lack of abundant experimental data on metal foams under tensile triaxial loadings, characterization of the yield surface of metallic foam is controversial. In this paper, we explore a numerical method to study… read more here.
Keywords: yield surface; mean stress; stress; yield ... See more keywords
A study on the efficiency of a capped hardening elasto-plastic model for soft clays
Sign Up to like & getrecommendations! Published in 2019 at "Soils and Foundations"
DOI: 10.1016/j.sandf.2018.09.011
Abstract: Abstract It is well known that the deformation and stress-resistant characteristics of fine-grained soils, especially soft clays, are significantly influenced by the soil softness. It is therefore very important to employ a model which can… read more here.
Keywords: soft clays; soil; model soft; model ... See more keywords
Micromechanical modeling approach to derive the yield surface for BCC and FCC steels using statistically informed microstructure models and nonlocal crystal plasticity
Sign Up to like & getrecommendations! Published in 2017 at "Physical Mesomechanics"
DOI: 10.1134/s1029959917030109
Abstract: In order to describe irreversible deformation during metal forming processes, the yield surface is one of the most important criteria. Because of their simplicity and efficiency, analytical yield functions along with experimental guidelines for parameterization… read more here.
Keywords: yield surface; crystal plasticity; micromechanical modeling; yield ... See more keywords