Results 41 to 50 of about 1,110 (134)

Numerical simulation of the mechanical response during strain path change: application to Zn alloys. [PDF]

The microstructure-based hardening model (Beyerlein and Tome, 2007), that accounts for the dislocation reversal-related mechanisms and the cut-through effect, is extended to HCP metals.
Barlat, F, Borodachenkova, M, Gracio, J, Pereira, A, Wen, W   +4 more
core   +1 more source

Novel Record of Intermittent Grounding of the Venable Ice Shelf Since 1935 From Operation IceBridge Airborne‐Gravity‐Derived Bathymetry and Landsat Imagery

Geophysical Research Letters, Volume 52, Issue 9, 16 May 2025.
Abstract Future projections and past reconstructions of Antarctic Ice Sheet stability and sea‐level rise depend on knowledge of continental shelf bathymetry, which controls water circulation under floating ice and interactions between the ice shelf and seafloor.
C. D. Locke, K. J. Tinto, D. F. Porter, R. R. Constantino   +3 more
wiley   +1 more source

Continuum modeling of dislocation plasticity: Theory, numerical implementation, and validation by discrete dislocation simulations [PDF]

, 2011
Miniaturization of components and devices calls for an increased effort on physically motivated continuum theories, which can predict size-dependent plasticity by accounting for length scales associated with the dislocation microstructure.
Cosserat, Forest, Hochrainer, Kondo, Kosevich, Michael Zaiser, Peter Gumbsch, Reese, Roters, Sandfeld, Stefan Sandfeld, Thomas Hochrainer, Weygand   +12 more
core   +1 more source

Recent Variability in Fracture Characteristics and Ice Flow of Thwaites Ice Shelf, West Antarctica

Journal of Geophysical Research: Earth Surface, Volume 130, Issue 5, May 2025.
Abstract The rapidly changing Thwaites Ice Shelf is crucial for understanding ice‐shelf dynamical processes and their implications for sea‐level rise from Antarctica. Fractures, particularly their vertical structure, are key to ice‐shelf structural integrity but remain poorly measured.
Shujie Wang, Patrick M. Alexander, Richard B. Alley, Zhengrui Huang, Byron R. Parizek, Amanda G. Willet, Sridhar Anandakrishnan   +6 more
wiley   +1 more source

Kalibrace Chabocheova modelu s paměťovou plochou [PDF]

, 2013
This paper points out a sufficient description of the stress-strain behaviour of the Chaboche nonlinear kinematic hardening model only for materials with the Masing's behaviour, regardless of the number of backstress parts.
Halama, Radim, Markopoulos, Alexandros, Sedlák, Josef   +2 more
core  

Tailored Nickel Base Multilayer Systems with Adjusted Grain Size and Chemical Composition

Advanced Engineering Materials, Volume 27, Issue 7, April 2025.
Nickel base multilayer systems are fabricated with pulsed electrodeposition and adjusted according to grain size and copper content. The material is characterized with scanning electron microscopy in combination with energy‐dispersive X‐ray spectroscopy and for deeper insights to the multilayer interfaces with transmission electron microscopy ...
Jutta Luksch, Johannes Niegisch, Maike Jordt, Marion Weissenberger, Christoph Pauly, Florian Schaefer, Christian Motz   +6 more
wiley   +1 more source

A Reassessment of the Role of Atmospheric and Oceanic Forcing on Ice Dynamics at Jakobshavn Isbræ (Sermeq Kujalleq), Ilulissat Icefjord

Journal of Geophysical Research: Earth Surface, Volume 130, Issue 4, April 2025.
Abstract Jakobshavn Isbræ (Sermeq Kujalleq) has been the largest single contributor to mass loss from the Greenland Ice Sheet over the past three decades. Previous research emphasizes the dominant role of oceanic forcing, with the recent advance, deceleration and thickening of Jakobshavn attributed to reduced ocean temperatures.
H. J. Picton, P. W. Nienow, D. A. Slater, T. R. Chudley   +3 more
wiley   +1 more source

Modeling of Stress–Strain Fields Below U‐Notch Root Using Plasticity Approximation Rules Under Variable‐Amplitude Loading

Fatigue &Fracture of Engineering Materials &Structures, Volume 48, Issue 2, Page 900-913, February 2025.
ABSTRACT This paper evaluates the applicability of Neuber's and equivalent strain energy density (ESED) rules to predict the material response below the root of a sharp U‐notch under variable‐amplitude (VA) loading for crack propagation simulations.
Anton Asplund, Heikki Remes, Yuki Ono
wiley   +1 more source

Low cycle fatigue life prediction in shot-peened components of different geometries—part I: residual stress relaxation [PDF]

, 2017
In this study, the residual stress relaxation behaviour occurring during low-cycle fatigue in shot-peened specimens with either a flat or a notched geometry has been studied. A representative low-pressure steam turbine material, FV448, was used.
Achintha, Achintha, Achintha, Altenberger, Benedetti, Chaboche, Child, Coratella, Coratella, Dalaei, He, He, Hill, Holzapfel, Kim, Korsunsky, Korsunsky, Korsunsky, Soady, Soady, Soady, Song, Vasu, Wagner, You, Zhuang   +25 more
core   +1 more source

Antarctic Wide Subglacial Hydrology Modeling

Geophysical Research Letters, Volume 52, Issue 1, 16 January 2025.
Abstract Global sea levels are rising due, in large part, to the increase in the rate of melting of ice sheets as a direct result of climate change. A large fraction of uncertainty in future sea level rise comes from limited understanding of basal conditions under ice sheets.
Shivani Ehrenfeucht, Christine Dow, Koi McArthur, Mathieu Morlighem, Felicity S. McCormack   +4 more
wiley   +1 more source