Unsteady Dynamic Crack Propagation in a Brittle Polymer

DOI PDF Web Site Web Site 被引用文献3件

書誌事項

公開日
2007-01-26
権利情報
  • http://www.springer.com/tdm
DOI
  • 10.1007/s11340-006-9020-x
公開者
Springer Science and Business Media LLC

この論文をさがす

説明

Dynamic crack propagation in a brittle polymer, poly(methyl-methacrylate) (PMMA), was studied using the method of caustics in combination with a Cranz–Schardin high-speed camera. Four different types of specimen geometry and loading method were employed to achieve the crack acceleration, deceleration, and/or reacceleration processes in one fracture event. The dynamic stress intensity factor K ID and crack velocity were obtained in the course of the crack propagation and the corresponding relationship was determined. The effect of the crack acceleration and deceleration on the K ID-velocity relationships was as follows: (1) the variations of K ID and the velocity were strongly influenced by the specimen geometry and loading method; (2) the velocity change was qualitatively in accord with K ID; (3) K ID for a constant crack velocity was larger when the crack decelerated than it was when the crack accelerated or reaccelerated; (4) K ID for an acceleration-free crack was uniquely related to the velocity; and (5) K ID could be expressed as two parametric functions of the velocity and acceleration.

収録刊行物

  • Experimental Mechanics

    Experimental Mechanics 47 (5), 609-615, 2007-01-26

    Springer Science and Business Media LLC

被引用文献 (3)*注記

もっと見る

問題の指摘

ページトップへ