Results 51 to 60 of about 4,884 (218)
Bayesian parameter identification in plasticity [PDF]
To evaluate the cyclic behaviour under different loading conditions using the kinematic and isotropic hardening theory of steel a Chaboche visco-plastic material model is employed.
Adeli, Ehsan +3 more
core
Memory of Stress History in Single and Two Surface Plasticity for Granular Soils
ABSTRACT Recent studies have identified limitations in Manzari and Dafalias' 1997 and 2004 sand plasticity models, particularly regarding one‐way unloading/reloading and ratcheting loading modes. These models are widely accepted as bounding surface models in the geotechnical engineering community; thus, concerns have arisen about a fundamental lack of ...
Alexandros L. Petalas
wiley +1 more source
To simulate the effect of variable strains on steel grades S275 and S355, an experimental displacement control test of plate specimens was performed. Specimens were tested under monotonic and cyclic loading according to the standard loading protocol of ...
Paulina Krolo +2 more
doaj +1 more source
A Note on the Numerical Modelling of Viscoplastic Damage
In this paper, a numerical model of the viscoplastic behaviour of metals including damage effects is proposed. The Chaboche model of constitutive equations accounting for viscoplasticity coupled to damage is applied.
P. Kłosowski, R. Schmidt, D. Weichert
doaj +1 more source
Finite element analysis of residual stresses in large cold-rolled thread [PDF]
As a subproject of the DFG Research Training Group Graduiertenkolleg 2075 Modelling the constitutive evolution of building materials and structures with respect to aging (GRK 2075), the fatigue behaviour of rolled-after heat-treatment and hot-dipped ...
Jahns, Hendrik +2 more
core
To investigate the relationship between load, damage, and fatigue life of complex engineering components under stress, this paper modifies the existing continuous nonlinear damage model based on the distortion energy density theory to reflect the usage and stress characteristics of Q345 steel components in bridges.
Yonzhi Lin +7 more
wiley +1 more source
In order to investigate the fatigue behavior of the hydrogen storage material, 30CrMo steel, in a hydrogen environment, an electrochemical hydrogen charging method was employed.
Y B Guan +8 more
doaj +1 more source
Evaluation of residual stress relaxation and its effect on fatigue strength of AISI 316L stainless steel ground surfaces: Experimental and numerical approaches [PDF]
This paper is aimed at evaluating the residual stress relaxation and its effect on the fatigue strength of AISI 316L steel ground surfaces in comparison to electro-polished surfaces.
BRAHAM, Chedly +2 more
core +2 more sources
ABSTRACT Short fiber‐reinforced polymers (SFRPs) exhibit complex anisotropic, nonlinear, and pressure‐dependent behavior due to their heterogeneous microstructures. Conventional constitutive models, while accurate, require extensive parameter calibration and may lack generalization capability under varied loading conditions.
Aamir Dean +4 more
wiley +1 more source
ABSTRACT The paper addresses the numerical calculation of multi‐axial fatigue crack propagation in ductile materials under proportional and non‐proportional cyclic loading conditions. The analysis is based on a phase field fracture theory proposed in earlier work, which describes crack propagation on the basis of the evolution of plastic strain.
Aris Tsakmakis +2 more
wiley +1 more source

