Development of unified framework for microstr ucture, residual stress, and crack propensity prediction using phase-field simulations

2020 ◽  
Vol 8 (2) ◽  
pp. 111-122
Author(s):  
Alexander Staroselsky ◽  
Ranadip Acharya ◽  
Brice Cassenti
Keyword(s):  
Residual Stress ◽  
Phase Field ◽  
Unified Framework

On the Mechanics of Residual Stresses in Girth Welds

2006 ◽  
Vol 129 (3) ◽  
pp. 345-354 ◽  
Author(s):  
P. Dong
Keyword(s):  
Residual Stress ◽  
Residual Stresses ◽  
Relative Importance ◽  
Stress Distributions ◽  
Unified Framework ◽  
Joint Geometry ◽  
Weld Residual Stress ◽  
Girth Welds ◽  
Welding Procedure

In this paper, some of the important controlling parameters governing weld residual stress distributions are presented for girth welds in pipe and vessel components, based on a large number of residual stress solutions available to date. The focus is placed upon the understanding of some of the overall characteristics in through-wall residual stress distributions and their generalization for vessel and pipe girth welds. In doing so, a unified framework for prescribing residual stress distributions is outlined for fitness-for-service assessment of vessel and pipe girth welds. The effects of various joint geometry and welding procedure parameters on through thickness residual stress distributions are also demonstrated in the order of their relative importance.

On the Mechanics of Residual Stresses in Girth Welds

2004 ◽  
Author(s):  
P. Dong
Keyword(s):  
Residual Stress ◽  
Residual Stresses ◽  
Relative Importance ◽  
Stress Distributions ◽  
Unified Framework ◽  
Joint Geometry ◽  
Weld Residual Stress ◽  
Girth Welds ◽  
Welding Procedure

In this paper, some of the important controlling parameters in governing weld residual stress distributions are presented for girth welds in pipe and vessel components, based on a large number of residual stress solutions available to date. The focus is placed upon the understanding of some of the overall characteristics in through-wall residual stress distributions and their generalization for vessel and pipe girth welds. In doing so, a unified framework for prescribing residual stress distributions is then outlined for fitness-for-service assessment of vessel and pipe girth welds. The effects of various joint geometry and welding procedure parameters on through thickness residual stress distributions are also demonstrated in the order of their relative importance.

scholarly journals Simulation of fatigue crack growth in residual‐stress‐afflicted specimen with a phase‐field model

PAMM ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Martha Seiler ◽  
Sören Keller ◽  
Nikolai Kashaev ◽  
Benjamin Klusemann ◽  
Markus Kästner
Keyword(s):  
Residual Stress ◽  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Phase Field ◽  
Field Model ◽  
Phase Field Model

Phase-field modeling for brittle fracture due to residual stress

2021 ◽  
Author(s):  
Diego Turbino ◽  
Thiago Barreto de Aguiar ◽  
Gabriel Mario Guerra Bernadá ◽  
Fernando Pereira Duda
Keyword(s):  
Residual Stress ◽  
Brittle Fracture ◽  
Phase Field ◽  
Phase Field Modeling ◽  
Field Modeling

scholarly journals Unified framework for a side-by-side comparison of different multicomponent algorithms: Lattice Boltzmann vs. phase field model

2013 ◽  
Vol 234 ◽  
pp. 263-279 ◽  
Author(s):  
Luca Scarbolo ◽  
Dafne Molin ◽  
Prasad Perlekar ◽  
Mauro Sbragaglia ◽  
Alfredo Soldati ◽  
...  
Keyword(s):  
Phase Field ◽  
Lattice Boltzmann ◽  
Field Model ◽  
Phase Field Model ◽  
Unified Framework

A phase field model of the premelting of grain boundaries in pure materials

2000 ◽  
Vol 652 ◽  
Author(s):  
Alexander E. Lobkovsky ◽  
James A. Warren
Keyword(s):  
Grain Boundaries ◽  
Phase Field ◽  
Field Model ◽  
Solid Phase ◽  
Phase Field Model ◽  
Field Variable ◽  
High Angle ◽  
Unified Framework ◽  
Crystalline Orientation ◽  
Solid Liquid

ABSTRACTWe present a phase field model of solidification which includes the effects of the crystalline orientation in the solid phase. This model describes grain boundaries as well as solid-liquid boundaries within a unified framework. With an appropriate choice of coupling of the phase field variable to the gradient of the crystalline orientation variable in the free energy, we find that high angle boundaries undergo a premelting transition. As the melting temperature is approached from below, low angle grain boundaries remain narrow. The width of the liquid layer at high angle grain boundaries diverges logarithmically.

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