Quasistatic Cracks and Minimal Energy Surfaces

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Journal Title
Journal ISSN
Volume Title
School of Science | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
1998
Major/Subject
Mcode
Degree programme
Language
en
Pages
329-332
Series
Physical Review Letters, Volume 80, Issue 2
Abstract
We compare the roughness of minimal energy (ME) surfaces and scalar “quasistatic” fracture (SQF) surfaces. Two-dimensional ME and SQF surfaces have the same roughness scaling, w∼Lζ ( L is the system size) with ζ=23. The 3d ME and SQF results at strong disorder are consistent with the random-bond Ising exponent ζ(d≥3)≈0.21(5−d) ( d is the bulk dimension). However, 3d SQF surfaces are rougher than ME surfaces due to a larger prefactor. ME surfaces undergo a “weakly rough” to “algebraically rough” transition in 3d, suggesting a similar behavior in fracture.
Description
Keywords
minimal energy surfaces, scalar quasistatic fracture surfaces, roughness
Other note
Citation
Räisänen, V. I. & Seppala, E. T. & Alava, Mikko J. & Duxbury, P. M. 1998. Quasistatic Cracks and Minimal Energy Surfaces. Physical Review Letters. Volume 80, Issue 2. 329-332. ISSN 0031-9007 (printed). DOI: 10.1103/physrevlett.80.329.