Void Formation during Diffusion – Two-Dimensional Approach
High Temperature Materials and Processes, 2016 The final set of equations defining the interdiffusion process in solid state is presented. The model is supplemented by vacancy evolution equation. The competition between the Kirkendall shift, backstress effect and vacancy migration is considered.
Wierzba Bartek
doaj +1 more source
Lattice strain measurements using synchrotron diffraction to calibrate a micromechanical modeling in a ferrite–cementite steel [PDF]
, 2013 In situ tensile tests were performed at room temperature on a ferrite–cementite steel specifically designed for this study. The evolution of the average stress in ferrite during loading was analyzed by X-ray diffraction.Lattice strain measurements were ...
BERBENNI, Stéphane +5 more
core +6 more sources
Experimental and mechanical characterizations of a lead free solder alloy for electronic devices [PDF]
, 2012 Electronic power modules devices are paramount components in the aeronautical,automotive and military applications. The solder layers are the most critical parts of the module and are usually subjected in their whole life to complex loading conditions ...
Alexis, Joël +3 more
core +7 more sources
Modelling environmental influences on calving at Helheim Glacier in eastern Greenland [PDF]
, 2014 Calving is an important mass-loss process for many glaciers worldwide, and has been assumed to respond to a variety of environmental influences. We present a grounded, flowline tidewater glacier model using a physically-based calving mechanism, applied ...
A. Goldsack +7 more
core +1 more source
Modeling the instantaneous response of glaciers after the collapse of the Larsen B Ice Shelf [PDF]
, 2015 Following the disintegration of the Larsen B Ice Shelf, Antarctic Peninsula, in 2002, regular surveillance of its ∼20 tributary glaciers has revealed a response which is varied and complex in both space and time.
Bamber, J. L. +3 more
core +1 more source
Changes in ice-shelf buttressing following the collapse of Larsen A Ice Shelf, Antarctica, and the resulting impact on tributaries [PDF]
, 2016 The dominant mass-loss process on the Antarctic Peninsula has been ice-shelf collapse, including the Larsen A Ice Shelf in early 1995. Following this collapse, there was rapid speed up and thinning of its tributary glaciers.
Gudmundsson, G. Hilmar +1 more
core +5 more sources
Validated prediction of weld residual stresses in austenitic steel pipe girth welds before and after thermal ageing, Part 2: modelling and validation [PDF]
, 2019 An extensive finite element simulation campaign was undertaken to examine the complete manufacturing history and high temperature thermal ageing of thick-walled girth-welded austenitic steel pipes fabricated from Esshete 1250 austenitic steel.
Austin +55 more
core +1 more source
A viscoplasticity model with an enhanced control of the yield surface distortion
, 2012 A new model of metal viscoplasticity, which takes combined isotropic, kinematic, and distortional hardening into account, is presented. The basic modeling assumptions are illustrated using a new two-dimensional rheological analogy.
Ihlemann, J., Shutov, A. V.
core +1 more source
Are seasonal calving dynamics forced by buttressing from ice mélange or undercutting by melting? Outcomes from full-Stokes simulations of Store Gletscher, West Greenland [PDF]
, 2014 . We use a full-Stokes 2-D model (Elmer/Ice) to investigate the flow and calving dynamics of Store Gletscher, a fast flowing outlet glacier in West Greenland.
Christoffersen, P, Todd, J
core +2 more sources
Quantification and localization of the liquid zone of partially remelted M2 tool steel using X-ray microtomography and scanning electron microscopy [PDF]
, 2012 The authors warmly thank Luc Morhain and Marc Wary (Arts et Métiers ParisTech CER Metz) for their technical support.Thixoforming of steels poses challenges due to the high temperatures involved and the lack of understanding of thermomechanical behavior ...
BECKER, Eric +5 more
core +3 more sources