Straight cracks in dynamic brittle fracture

Authors
Pla, O Guinea, F Louis, E Ghaisas, SV Sander, LM
Citation
O. Pla et al., Straight cracks in dynamic brittle fracture, PHYS REV B, 61(17), 2000, pp. 11472-11486
Citations number
48
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
10980121 → ACNP
Volume
61
Issue
17
Year of publication
2000
Pages
11472 - 11486
Database
ISI
SICI code
1098-0121(20000501)61:17<11472:SCIDBF>2.0.ZU;2-2
Abstract
We study the dynamics of cracks in brittle materials when the velocity of t he crack is comparable to the sound velocity by means of lattice simulation s. Inertial and damped dynamics are analyzed. It is shown that dissipation strongly influences the shape of the crack. While inertial cracks are highl y unstable, dissipation can stabilize straight cracks. Our results can hell to explain recent experiments on polymethylmethaerylate ate.