Results 251 to 260 of about 11,030,662 (278)

Modeling the evolution of dislocation populations under non-proportional loading

International Journal of Plasticity, 2014
The two-phase composite approach of Estrin et al. (1998) describes an evolving dislocation cell structure with dislocation populations for cell walls and the interior. Mckenzie et al. (2007) enhanced the model to capture the effects of hydrostatic pressure and temperature during severe plastic deformation.
C.B. Silbermann, A.V. Shutov, J. Ihlemann   +2 more
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EVALUATION OF LOW CYCLE FATIGUE UNDER NON‐PROPORTIONAL LOADING

Fatigue & Fracture of Engineering Materials & Structures, 1996
Abstract— A series of low cycle fatigue experiments have been conducted on a 42CrMo steel under tension‐torsion loading. Thin‐walled tube specimens were used. Low cycle fatigue under various loading paths, including circular and square paths, have been investigated.The plastic work criterion for low cycle fatigue failure has previously been generally ...
X. Chen, Q. Gao, A. Abel, S. Wu
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A multiaxial cyclic plasticity model for non-proportional loading cases

International Journal of Plasticity, 1998
From the conclusions: We propose a two-surface plasticity model for non-proportional loading using a nonlinear hardening rule with evanescent memory evolution. The additional term incorporated in the Armstrong-Frederick kinematic hardening rule for cyclic loading is modified to account for continuous non-proportional stress loading paths.
Basuroychowdhury, I. N., Voyiadjis, G. Z.   +1 more
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Sequentially linear analysis of fracture under non-proportional loading

Engineering Fracture Mechanics, 2008
Sequentially linear analysis avoids convergence problems typical of non-linear finite element analysis by directly specifying a damage increment instead of a load or displacement increment. A series of linear analyses is used to model highly non-linear behavior without an iterative solution algorithm. The primary contribution herein is the extension of
Matthew J. DeJong, Max A.N. Hendriks, Jan G. Rots   +2 more
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Fatigue Criterion Based on the Novoshilov Criterion for Non-proportional Loadings*

Materials Testing, 2011
Abstract In the present paper the fatigue limit has been calculated under non-proportional loads, proposing a modification of the Huber-von Mises-Hencky criterion, i. e. the Novoshilov interpretation of that criterion was applied. As an effective amplitude, the maximum value of shear stress in the non-proportional load cycle was assumed.
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Anisotropic Plasticity During Non-proportional Loading

2022
Frédéric Barlat, Seong-Yong Yoon
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Microcrack propagation under non-proportional multiaxial alternating loading

2003
Abstract Non-proportional multiaxial fatigue tests of tubular specimens were performed under purely alternating strain-controlled loading. Both the load paths and the phase shifts were varied. With increasing phase shift at the same equivalent load, the lifetime was found to increase.
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Proportional analysis of non-proportional loadings

2005
H. Jahed, M. Noban
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An evolution of subsequent yield loci under proportional and non-proportional loading path of ‘as-received’ extruded AZ31 magnesium alloy: Experiments and CPFEM modeling

International Journal of Plasticity, 2022
Abhijit Brahme, Kaan Inal, Ch Mohammad Abbas Iftikhar   +2 more
exaly  

Model of non-proportional fatigue load in the form of block load spectrum

Materialwissenschaft und Werkstofftechnik, 2014
D. Skibicki, J. Sempruch, Ł. Pejkowski
openaire   +1 more source