Mesoscopic Maxwell-Dissipative Finite Element Model for Crack Propagation

Pekka Heino () and Kimmo Kaski ()
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Pekka Heino: Laboratory of Computational Engineering, Helsinki University of Technology, Miestentie 3, FIN-02150 Espoo, Finland
Kimmo Kaski: Laboratory of Computational Engineering, Helsinki University of Technology, Miestentie 3, FIN-02150 Espoo, Finland

International Journal of Modern Physics C (IJMPC), 1997, vol. 08, issue 02, 383-395

Abstract: Dynamic fracture in viscoelastic solids has been studied computationally using a mesoscale Finite Element model. In order to study crack propagation in homogeneous or amorphous materials the locations of nodes are selected regularly or randomly, respectively. In both cases results show oscillations in crack velocity above a critical velocity of about one-half the Raleigh velocity. The complicated topology of cracks obeys the scaling law found in experimental works. Dissipative systems are found to bear a larger maximum strain than purely elastic systems before macroscopic fracture.

Keywords: Dynamic Crack Propagation; Viscoelasticity; Branch Bending (search for similar items in EconPapers)
Date: 1997
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DOI: 10.1142/S0129183197000321

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