Toughening mechanisms of rubber toughened PMMA

Mitsugu Todo, Kiyoshi Takahashi, P. Y. Ben Jar, Philippe Béguelin

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Toughening mechanisms of three types of rubber toughened poly (methyl methacrylate) (RT-PMMA) were investigated under mode 1 loading condition by optical and electron microscopies in conjunction with the quantitative evaluation of mode I fracture toughness. Polarizing optical microscopy clearly exhibited damage zone development ahead of a crack-tip in the RT PMMA's. The three RT PMMA's revealed different shapes of the damage zone. Transmission electron microscopy exhibited microcrazes generated in the equator of rubber particles within the damage zones. Extensive deformation of rubber particles corresponding to localized shear yielding of the PMMA matrix was also found in a region close to a propagating cracktip. In addition, cavitation of rubber particles was observed in the vicinity of the crack. It is therefore understood that the toughening of the RT PMMA's is due to energy dissipation caused by the microdamage formations such as microcrazing, matrix shear deformation and rubber particle captation ahead of the crack-tip.

Original languageEnglish
Pages (from-to)585-591
Number of pages7
JournalJSME International Journal, Series A
Volume42
Issue number4
Publication statusPublished - Oct 1 1999

Fingerprint

Toughening
Rubber
Crack tips
Optical microscopy
Polymethyl methacrylates
Cavitation
Shear deformation
Electron microscopy
Fracture toughness
Energy dissipation
Transmission electron microscopy
Cracks

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Todo, M., Takahashi, K., Ben Jar, P. Y., & Béguelin, P. (1999). Toughening mechanisms of rubber toughened PMMA. JSME International Journal, Series A, 42(4), 585-591.

Toughening mechanisms of rubber toughened PMMA. / Todo, Mitsugu; Takahashi, Kiyoshi; Ben Jar, P. Y.; Béguelin, Philippe.

In: JSME International Journal, Series A, Vol. 42, No. 4, 01.10.1999, p. 585-591.

Research output: Contribution to journalArticle

Todo, M, Takahashi, K, Ben Jar, PY & Béguelin, P 1999, 'Toughening mechanisms of rubber toughened PMMA', JSME International Journal, Series A, vol. 42, no. 4, pp. 585-591.
Todo M, Takahashi K, Ben Jar PY, Béguelin P. Toughening mechanisms of rubber toughened PMMA. JSME International Journal, Series A. 1999 Oct 1;42(4):585-591.
Todo, Mitsugu ; Takahashi, Kiyoshi ; Ben Jar, P. Y. ; Béguelin, Philippe. / Toughening mechanisms of rubber toughened PMMA. In: JSME International Journal, Series A. 1999 ; Vol. 42, No. 4. pp. 585-591.
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