001     48860
005     20180210140855.0
024 7 _ |2 pmid
|a pmid:15997339
024 7 _ |2 DOI
|a 10.1140/epje/i2005-10013-y
024 7 _ |2 WOS
|a WOS:000232026500002
037 _ _ |a PreJuSER-48860
041 _ _ |a eng
082 _ _ |a 530
084 _ _ |2 WoS
|a Chemistry, Physical
084 _ _ |2 WoS
|a Materials Science, Multidisciplinary
084 _ _ |2 WoS
|a Physics, Applied
084 _ _ |2 WoS
|a Polymer Science
100 1 _ |a Carbone, G.
|b 0
|0 P:(DE-HGF)0
245 _ _ |a Crack motion in viscoelastic solids: role of the flash temperature
260 _ _ |a Berlin
|b Springer
|c 2005
300 _ _ |a 261
336 7 _ |a Journal Article
|0 PUB:(DE-HGF)16
|2 PUB:(DE-HGF)
336 7 _ |a Output Types/Journal article
|2 DataCite
336 7 _ |a Journal Article
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|2 EndNote
336 7 _ |a ARTICLE
|2 BibTeX
336 7 _ |a JOURNAL_ARTICLE
|2 ORCID
336 7 _ |a article
|2 DRIVER
440 _ 0 |a European Physical Journal E
|x 1292-8941
|0 1985
|v 17
500 _ _ |a Record converted from VDB: 12.11.2012
520 _ _ |a We present a simple theory of crack propagation in viscoelastic solids. We calculate the energy per unit area, G(v), to propagate a crack, as a function of the crack tip velocity v. Our study includes the non-uniform temperature distribution (flash temperature) in the vicinity of the crack tip, which has a profound influence on G(v). At very low crack tip velocities, the heat produced at the crack tip can diffuse away, resulting in very small temperature increase: in this "low-speed" regime the flash temperature effect is unimportant. However, because of the low heat conductivity of rubber-like materials, already at moderate crack tip velocities a very large temperature increase (of order of 1000 K) can occur close to the crack tip. We show that this will drastically affect the viscoelastic energy dissipation 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, which may result in unstable crack motion, e.g. stick-slip motion or catastrophic failure, as observed in some experiments. In addition, the high crack tip temperature may result in significant thermal decomposition within the heated region, resulting in a liquid-like region in the vicinity of the crack tip. This may explain the change in surface morphology (from rough to smooth surfaces) which is observed as the crack tip velocity is increased above the instability threshold.
536 _ _ |a Kondensierte Materie
|c M02
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|0 G:(DE-Juel1)FUEK242
|x 0
588 _ _ |a Dataset connected to Web of Science, Pubmed
650 _ 7 |a J
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700 1 _ |a Persson, B. N. J.
|b 1
|u FZJ
|0 P:(DE-Juel1)130885
773 _ _ |a 10.1140/epje/i2005-10013-y
|g Vol. 17, p. 261
|p 261
|q 17<261
|0 PERI:(DE-600)2004003-9
|t The @European physical journal / E
|v 17
|y 2005
|x 1292-8941
856 7 _ |u http://dx.doi.org/10.1140/epje/i2005-10013-y
909 C O |o oai:juser.fz-juelich.de:48860
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|l Kondensierte Materie
|b Materie
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914 1 _ |y 2005
915 _ _ |0 StatID:(DE-HGF)0010
|a JCR/ISI refereed
920 1 _ |k IFF-TH-I
|l Theorie I
|d 31.12.2006
|g IFF
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981 _ _ |a I:(DE-Juel1)PGI-1-20110106


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