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Cyclic plasticity of trusses

Archive of Applied Mechanics, 2014
In this paper, the Preisach model of hysteresis, which was already successfully implemented for solving problems of cyclic plasticity of axially loaded bar and cyclic bending of elastoplastic beam, is extended to the structural analysis of trusses subjected to cyclic loading.
Šumarac, Dragoslav, Perović, Zoran
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Cyclic plasticity phenomena as predicted by polycrystal plasticity

Mechanics of Materials, 2000
Abstract The elasto-viscoplastic Taylor–Lin model of polycrystal plasticity is employed to simulate the cyclic behavior of polycrystalline metals. Uniaxial tension–compression as well as biaxial cyclic deformations are examined by imposing the strain amplitude. Microscopic hardening law is used to account for the self and latent hardening of the slip
László S Tóth
exaly   +2 more sources

Cyclic plasticity and substructure of metals

Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, 2002
Fatigue of metals is a consequence of cyclic plastic deformation. Fatigue properties, as well as the mechanical properties in general, are strongly dependent on the starting substructure. Moreover, the substructure undergoes changes during cyclic loading.
L Kunz
exaly   +2 more sources

Cyclic plasticity of an interstitial high-entropy alloy: experiments, crystal plasticity modeling, and simulations

Journal of the Mechanics and Physics of Solids, 2020
The development of high-entropy alloys (HEAs) comprising multiple principal components is an innovative design strategy for metallic materials from the perspective of thermodynamic entropy.
Xiaochong Lu, Junwen Zhao, Zhiming Li
exaly   +2 more sources

Plastic Internal Variables Formalism of Cyclic Plasticity

Journal of Applied Mechanics, 1976
The notion of Plastic Internal Variables (PIV) is used in reformulating, in a general form, the equations of rate-independent plasticity. The stress, temperature, and the PIV are the state variables for the present development. Loading-unloading is defined in terms of the usual loading function of classical plasticity.
Dafalias, Y. F., Popov, E. P.
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Endochronic Theory of Cyclic Plasticity With Applications

Journal of Applied Mechanics, 1984
Integral constitutive equations of the endochronic type with only two easily determined material constants are shown to predict with computational ease the stress (plastic strain) response of normalized mild steel and Grade 60 steel to a variety of general strain (stress) histories, without a need for special unloading-reloading or memory rules.
Valanis, K. C., Lee, C. F.
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Modelling of Cyclic Plasticity and Crack Propagation

Key Engineering Materials, 2010
An experimental and numerical study of the cyclic deformation and low-cycle fatigue behaviour of the aluminium alloy AlCu5BiPb–T8 is presented. The experimental program included monotonic tensile tests, symmetric and unsymmetric strain-controlled fatigue tests, fracture toughness tests, as well as fatigue crack initiation and propagation tests.
Kodvanj, Janoš, Tomičević, Zvonimir, Bakić, Ante, Tonković, Zdenko, Čanžar, Predrag   +4 more
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Cyclic Plasticity and Ratchetting

1994
A robust kinematic hardening rule is proposed which appropriately blends the deviatoric stress rate rule and the Tseng-Lee rule in order to satisfy both the experimental observations made by Phillips et al. and the nesting of the yield surface to the limit surface.
George Z. Voyiadjis, Srinivasan M. Sivakumar   +1 more
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Damage Models for Cyclic Plasticity

Key Engineering Materials, 2003
The process of void growth in ductile materials under alternating plastification is studied by means of unit-cell calculations. Constitutive models for damage evolution in ductile materials as the micromechanical model by Gurson, Tvergaard and Needleman and the continuum damage model by Rousselier are systematically investigated with respect to their ...
Wolfgang Brocks, Dirk Steglich
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Constitutive equations for cyclic plasticity and cyclic viscoplasticity

International Journal of Plasticity, 1989
Abstract The cyclic constitutive equations developed and used at ONERA and LMT-Cachan are presented in detail in terms of a hierarchy of various models. Both the time-independent and the viscoplasticity versions of the equations are discussed, as well as their ability to describe correctly most of the experimentally observed effects under monotonic ...
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