Numerical Analysis of the Brittle-Ductile Transition in the Failure-Mode in Polymeric Materials

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In this paper we analyze, using the Finite Element Method, the process of brittle-ductile transition in the failure mode observed in polycarbonate notched specimens under impact loads. In order to analyze this transition we have implemented, through a user subroutine, a damage model which combines a tensional fracture criterion and an energetic, acting simultaneously. The competition between both criteria predicts the difference in material behavior from a critical impact velocity, and how this transition is produced on different planes through the thickness of the specimen. These results show the necessity of employing three-dimensional models for its study.

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310-315

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June 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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[1] Z. Li and J. Lambros: International Journal of Solids and Structures. Vol. 38 (2001), p.3549.

Google Scholar

[2] J.A. Loya and K. Ravi-Chandar: Anales de Mecánica de la Fractura. Vol. 23 (2006), p.195.

Google Scholar

[3] M. Zhou, A.J. Rosakis and G. Ravichandran: Int. Journal of Plasticity. Vol. 14 (1998), p.435.

Google Scholar

[4] J.A. Loya, E. Villa and J. Fernández-Sáez: Polymer Testing. Vol. 29 (2010), p.113.

Google Scholar

[5] K. Ravi-Chandar and W.G. Knauss: International Journal of Fracture. Vol. 25 (1984), p.247.

Google Scholar

[6] J. Kalthoff: Optical Engineering. Vol. 27 (1988), p.835.

Google Scholar

[7] M. Dolinski, D. Rittel and A. Dorogoy: Journal of Mechanics and Physics of Solids. Vol. 58 (2010), p.1759.

Google Scholar

[8] D. Rittel and A. Brill: Journal of Mechanics and Physics of Solids. Vol. 56 (2008), p.1401.

Google Scholar

[9] K. Ravi-Chandar, J. Lu, B. Yang and Z. Zhu: Int. Journal of Fracture. Vol. 101 (2000), p.33.

Google Scholar

[10] R. Ritchie, J. Knott and J. Rice: Journal of Mechanics and Physics of Solids. Vol. 21 (1973), p.395.

Google Scholar

[11] S. Fu, Y. Wang and Y. Wang: Polymer Testing. Vol. 28 (2009), p.724.

Google Scholar