Reference : Effects of elastic strain energy and interfacial stress on the equilibrium morphology...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Physics
Computational Sciences
http://hdl.handle.net/10993/11024
Effects of elastic strain energy and interfacial stress on the equilibrium morphology of misfit particles in heterogeneous solids
English
Zhao, X. [Department of Mechanical Engineering, Northwestern University, Evanston, IL 60208, United States]
Duddu, R. [Department of Civil and Environmental Engineering, Vanderbilt University, Nashville, TN 37235, United States]
Bordas, Stéphane mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
Qu, J. [Department of Mechanical Engineering, Northwestern University, Evanston, IL 60208, United States, Department of Civil and Environmental Engineering, Northwestern University, Evanston, IL 60208, United States]
2013
Journal of the Mechanics & Physics of Solids
61
6
1433-1445
Yes (verified by ORBilu)
International
0022-5096
[en] Equilibrium shape ; Extended finite element method ; Level set method ; Morphological transformation ; Particle splitting ; Level Set method ; Morphological transformations ; Anisotropy ; Drop breakup ; Interfacial energy ; Level measurement ; Morphology ; Interfaces (materials)
[en] This paper presents an efficient sharp interface model to study the morphological transformations of misfit particles in phase separated alloys. Both the elastic anisotropy and interfacial energy are considered. The geometry of the material interface is implicitly described by the level set method so that the complex morphological transformation of microstructures can be accurately captured. A smoothed extended finite element method is adopted to evaluate the elastic field without requiring remeshing. The equilibrium morphologies of particles are shown to depend on the elastic anisotropy, interfacial energy as well as the particle size. Various morphological transformations, such as shape changes from spheres to cuboids, directional aligned platelets and particle splitting, are observed. The simulated results are in good agreement with experimental observations. The proposed model provides a useful tool in understanding the morphological transformation of precipitates, which will facilitate the analysis and design of metallic alloys. © 2013 Elsevier Ltd.
http://hdl.handle.net/10993/11024
10.1016/j.jmps.2013.01.012

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Open access
manuscript - JMPS-D-12-00428.pdfAuthor preprint491.07 kBView/Open

Additional material(s):

File Commentary Size Access
Open access
quadlet_09.aviQuadlet596.5 kBView/Open
Open access
doublelet_01.aviDoublet171 kBView/Open
Open access
Circle2Cubic_03.aviCircle to cubic transition nano-scale mismatched materials, interfacial energy, XFEM, Level Sets, Smoothed XFEM, Extended Finite Element Methods, Enrichment114 kBView/Open

Bookmark and Share SFX Query

All documents in ORBilu are protected by a user license.