We study crack-propagation in rubber-like materials and show that the non-uniform temperature distribution which occurs in the vicinity of the crack tip, has a profound influence on the crack propagation mechanism, and may strongly enhance the crack propagation energy for high crack velocities. At very low crack-tip velocities, the heat produced at the crack tip can diffuse away, but already at moderate crack tip velocities a very large temperature increase occurs close to the crack tip resulting in a hot-crack propagation regime. The transition between the low-speed regime and the hot-crack regime is very abrupt and may result in unstable crack motion, e.g. stick-slip motion or catastrophic failure.

Stick-slip crack motion in viscoelastic solids: The flash temperature effect / Carbone, Giuseppe; Persson, B. N. J.; Mangialardi, Luigi. - (2007). (Intervento presentato al convegno XVIII Congresso AIMETA di Meccanica Teorica e Applicata tenutosi a Brescia nel 11-14 settembre, 2007).

Stick-slip crack motion in viscoelastic solids: The flash temperature effect

CARBONE, Giuseppe;MANGIALARDI, Luigi
2007-01-01

Abstract

We study crack-propagation in rubber-like materials and show that the non-uniform temperature distribution which occurs in the vicinity of the crack tip, has a profound influence on the crack propagation mechanism, and may strongly enhance the crack propagation energy for high crack velocities. At very low crack-tip velocities, the heat produced at the crack tip can diffuse away, but already at moderate crack tip velocities a very large temperature increase occurs close to the crack tip resulting in a hot-crack propagation regime. The transition between the low-speed regime and the hot-crack regime is very abrupt and may result in unstable crack motion, e.g. stick-slip motion or catastrophic failure.
2007
XVIII Congresso AIMETA di Meccanica Teorica e Applicata
978-88-89720-69-1
Stick-slip crack motion in viscoelastic solids: The flash temperature effect / Carbone, Giuseppe; Persson, B. N. J.; Mangialardi, Luigi. - (2007). (Intervento presentato al convegno XVIII Congresso AIMETA di Meccanica Teorica e Applicata tenutosi a Brescia nel 11-14 settembre, 2007).
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11589/17814
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