Results 31 to 40 of about 1,110 (134)
CrystalsThe formability of AA7021-T4 sheets under changing strain paths was investigated via a novel crystal plasticity model and associated experimentation. The motivation was to advance simulation tools for process design of limited-ductility 7xxx alloys, with
Md. Zahidul Sarkar +5 more
doaj +1 more source
The Role of Dislocations in the Anelasticity of the Upper Mantle
Journal of Geophysical Research: Solid Earth, Volume 130, Issue 10, October 2025.Abstract Dislocation‐based dissipation mechanisms potentially control the viscoelastic response of Earth's upper mantle across a variety of geodynamic contexts, including glacial isostatic adjustment, postseismic creep, and seismic‐wave attenuation.
Diede Hein +9 more
wiley +1 more source
Applied SciencesThe present study intends to assess the ratcheting response of SA508 and SA333 steel alloys subjected to asymmetric loading cycles at various operating temperatures of 298, 573, and 623K through a hardening framework developed by Ahmadzadeh–Varvani (A-V)
M. Karimi, A. Varvani-Farahani
doaj +1 more source
Effects of Cyclic Plastic Strain on Hydrogen Environment Assisted Cracking in High-Strength Steel [PDF]
, 2012 8 pagesInternational audienceCyclic loading tests were performed on micro-notched samples of high-strength steel S690QL (standard EN 10137-2) in air and under cathodic polarization in a saline solution.
Bosch, Cédric +2 more
core +3 more sources
Fatigue &Fracture of Engineering Materials &Structures, Volume 48, Issue 10, Page 4505-4516, October 2025.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
Anisotropic yield functions in a co-rotating reference frame [PDF]
, 2000 In metal forming simulations large deformations are often treated based on objective formulations. Large rotations are accounted for by rotating the stress tensor or approximating the rotation by some integration rule for the rate of rotation.
Boogaard, A.H. van den +2 more
core +1 more source
Influence of Ocean Waters in Retreat Episodes of a West Greenland Tidewater Outlet Glacier
Journal of Geophysical Research: Oceans, Volume 130, Issue 7, July 2025.Abstract The behavior of tidewater outlet glaciers is critical for understanding the dynamics of the Greenland Ice Sheet. The retreat of these glaciers has far‐reaching implications, with impacts ranging from altering local fjord ecosystems to affecting global sea levels. Here, we integrated hydrographic with glaciological parameters to investigate the
S. D. X. Chua +3 more
wiley +1 more source
, 2007 This article deals with a viscoplastic material model of overstress type. The model is based on a multiplicative decomposition of the deformation gradient into elastic and inelastic part.
A.V. Shutov +38 more
core +2 more sources
Transient Propagation of Ductile Ruptures by Thermal Runaway
Journal of Geophysical Research: Solid Earth, Volume 130, Issue 6, June 2025.Abstract Ductile deformation is typically associated with slow and steady‐state deformation, yet the occurrence of deep earthquakes, which exhibit a rapid and transient behavior, challenges this view. One proposed mechanism to facilitate such behavior is thermal runaway.
A. Spang +3 more
wiley +1 more source
Fatigue &Fracture of Engineering Materials &Structures, Volume 48, Issue 6, Page 2649-2668, June 2025.ABSTRACT The paper at hand presents a new numerical model based on experimental investigations of the low‐cycle fatigue behavior of the high‐strength aluminum alloy EN AW‐7020 T6. The developed plastic damage model is based on J2 plasticity with Charboche‐type mixed kinematic hardening blended with a suitable isotropic hardening.
Alireza Daneshyar +3 more
wiley +1 more source