Dynamic crack propagation and unloading behavior of brittle polymers

Kazuo Arakawa, D. Nagoh, K. Takahashi

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

The method of caustics in combination with a Cranz-Schardin high-speed camera was utilized to study dynamic crack propagation and unloading behavior of epoxy, PMMA and Homalite-100 specimens. Dynamic stress intensity factor KID and crack velocity ȧ were evaluated in the course of crack propagation. Caustic patterns at the loading points were also recorded to estimate load P applied to the specimen. Unloading rate Ṗ, the time derivative of P, was determined as a function of time t, and its time correlation with KID or ȧ was examined. The findings showed that the change in Ṗ was qualitatively in accord with the change in KID or ȧ. However, there existed slight differences among the values of t giving the maximum Ṗ, ȧ and KID, so that their order was ȧ, Ṗ and KID.

Original languageEnglish
Pages (from-to)345-358
Number of pages14
JournalInternational Journal of Fracture
Volume96
Issue number4
Publication statusPublished - Dec 1 1999

Fingerprint

Crack Propagation
Unloading
Crack propagation
Caustic
Polymers
High speed cameras
Stress intensity factors
Dynamic Stress Intensity Factor
High-speed Camera
Epoxy
Derivatives
Cracks
Crack
Derivative
Estimate

All Science Journal Classification (ASJC) codes

  • Computational Mechanics
  • Modelling and Simulation
  • Mechanics of Materials

Cite this

Arakawa, K., Nagoh, D., & Takahashi, K. (1999). Dynamic crack propagation and unloading behavior of brittle polymers. International Journal of Fracture, 96(4), 345-358.

Dynamic crack propagation and unloading behavior of brittle polymers. / Arakawa, Kazuo; Nagoh, D.; Takahashi, K.

In: International Journal of Fracture, Vol. 96, No. 4, 01.12.1999, p. 345-358.

Research output: Contribution to journalArticle

Arakawa, K, Nagoh, D & Takahashi, K 1999, 'Dynamic crack propagation and unloading behavior of brittle polymers', International Journal of Fracture, vol. 96, no. 4, pp. 345-358.
Arakawa, Kazuo ; Nagoh, D. ; Takahashi, K. / Dynamic crack propagation and unloading behavior of brittle polymers. In: International Journal of Fracture. 1999 ; Vol. 96, No. 4. pp. 345-358.
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