MESOSCOPIC MAXWELL-DISSIPATIVE-FINITE-ELEMENT-MODEL FOR CRACK-PROPAGATION

Authors
HEINO P KASKI K
Citation
P. Heino et K. Kaski, MESOSCOPIC MAXWELL-DISSIPATIVE-FINITE-ELEMENT-MODEL FOR CRACK-PROPAGATION, International journal of modern physics C, 8(2), 1997, pp. 383-395
Citations number
31
Categorie Soggetti
Mathematical Method, Physical Science","Physycs, Mathematical","Computer Science Interdisciplinary Applications
Journal title
International journal of modern physics C → ACNP
ISSN journal
01291831
Volume
8
Issue
2
Year of publication
1997
Pages
383 - 395
Database
ISI
SICI code
0129-1831(1997)8:2<383:MMFC>2.0.ZU;2-H
Abstract
Dynamic fracture in viscoelastic solids has been studied computational ly using a mesoscale Finite Element model. In order to study crack pro pagation in homogeneous or amorphous materials the locations of nodes are selected regularly or randomly, respectively. In both cases result s show oscillations in crack velocity above a critical velocity of abo ut one-half the Raleigh velocity. The complicated topology of cracks o beys the scaling law found in experimental works. Dissipative systems are found to bear a larger maximum strain than purely elastic systems before macroscopic fracture.