Results 21 to 30 of about 2,557,798 (136)

Brittle and Crystal‐Plastic Defect Dynamics of Calcite Single Crystals

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 1, January 2026.
Abstract The response of Earth materials to stress has a first‐order control on solid‐Earth dynamics ranging from earthquakes to volcanic eruptions to landslides. Thus, understanding the rheological behavior of minerals, preferentially at a micro‐scale to allow process‐based upscaling, has broad applications across the Earth sciences.
H. O’ Ghaffari   +4 more
wiley   +1 more source

Slip‐Event Timing and Ice Velocity Vary at Long‐Period Ocean Tidal Frequencies at Whillans Ice Plain, West Antarctica

open access: yesJournal of Geophysical Research: Earth Surface, Volume 131, Issue 1, January 2026.
Abstract Whillans Ice Plain (WIP), a region of West Antarctica flowing into the southern Ross Sea, lurches forward 0.2–0.6 m over 30–60 min once or twice per diurnal ocean tidal cycle. Combining 11 years (2008–2019) of 30 s or better resolution Global Navigation Satellite System (GNSS) data from past field campaigns is necessary to provide insight into
Z. S. Katz, M. R. Siegfried, L. Padman
wiley   +1 more source

Seismic Design Gaps and Link Innovations: Evaluating Gusset Connected Box and I‐Shaped Links in Multi‐Tiered EBFs

open access: yesAdvances in Civil Engineering, Volume 2026, Issue 1, 2026.
This study addresses a critical gap in seismic design codes by evaluating the nonlinear performance of multi‐tiered eccentrically braced frames (MT‐EBFs) and offering practical recommendations for future provisions. MT‐EBFs, an advanced variation of conventional EBFs, incorporate multiple tiers of links and braces within a single story, making them ...
Mohammad Rezaee   +2 more
wiley   +1 more source

Development and Validation of a Thermomechanically Coupled Plasticity Model at Elevated Temperatures

open access: yesAdvances in Materials Science and Engineering, Volume 2026, Issue 1, 2026.
Traditional material models often fail to accurately capture the cyclic behaviour of metals under combined thermomechanical loads, which leads to significant discrepancies in predicting material performance at elevated temperatures. This study develops and validates an advanced thermomechanically coupled plasticity model for G22NiMoCr5‐6 cast steel ...
Safa Yusuf Cetin   +2 more
wiley   +1 more source

The Role of Dislocations in the Anelasticity of the Upper Mantle

open access: yesJournal 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

Modeling of Crack Propagation in Ductile Materials Under Cyclic, Proportional and Non‐Proportional Loading Conditions

open access: yesFatigue &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

Rapidly evolving genes and stress adaptation of two desert poplars, Populus euphratica and P. pruinosa [PDF]

open access: yes, 2013
Understanding which genes have evolved rapidly with the recent tree speciation in arid habitats can provide valuable insights into different adaptation mechanisms. We employed a comparative evolutionary analysis of expressed sequence tags (ESTs) from two
Penghui Xie (420345)   +21 more
core   +1 more source

Influence of Ocean Waters in Retreat Episodes of a West Greenland Tidewater Outlet Glacier

open access: yesJournal 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

Transient Propagation of Ductile Ruptures by Thermal Runaway

open access: yesJournal 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

A Plastic Damage Model With Mixed Isotropic–Kinematic Hardening for Low‐Cycle Fatigue in 7020 Aluminum

open access: yesFatigue &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

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