Finite Element Modeling of Damage Formation in Rubber-Toughened Polymer

Abstract:

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Microscopic studies on the toughening mechanism of rubber-toughened PMMA (RTPMMA) were carried out using a polarizing optical microscope (POM) and a transmission electron microscope (TEM). POM result showed that in a typical RT-PMMA, a damage zone was developed in the vicinity of crack-tip, and therefore, it was considered that energy dissipation due to the damage zone development was the primary toughening mechanism. TEM result exhibited that the damage zone was a crowd of micro-crazes generated around rubber particles in the vicinity of notch-tip. Finite element analysis was then performed to simulate such damage formations in crack-tip region. Macro-scale and micro-scale models were developed to simulate damage zone formation and micro-crazing, respectively, with use of a damage model. It was shown that the damage model introduced was successfully applied to predict such kind of macro-damage and micro-craze formations.

Info:

Periodical:

Key Engineering Materials (Volumes 297-300)

Edited by:

Young-Jin Kim, Dong-Ho Bae and Yun-Jae Kim

Pages:

1019-1024

DOI:

10.4028/www.scientific.net/KEM.297-300.1019

Citation:

M. Todo et al., "Finite Element Modeling of Damage Formation in Rubber-Toughened Polymer ", Key Engineering Materials, Vols. 297-300, pp. 1019-1024, 2005

Online since:

November 2005

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Price:

$35.00

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