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Journal of Materials Science

, Volume 41, Issue 17, pp 5778–5781 | Cite as

Mode-I fracture toughness measurement of PMMA with the Brazilian disk test

  • Jun Zhou
  • Yang Wang
  • Yuanming Xia
Letter
PMMA (Polymethyl methacrylate) is employed as an industrial material due to its excellent properties. Therefore, investigating the fracture behavior for this material is of importance in its structural applications. It is well known that fracture toughness is an important material parameter in characterizing mechanical properties of materials. So far, a number of experimental techniques have been developed for determining the fracture toughness of materials under different conditions [ 1]. Particularly, Brazilian disk (central cracked circular disk) test technique is widely used to measure the fracture toughness of brittle materials under mixed-mode loading conditions [ 2, 3, 4]. The schematic diagram of Brazilian disk and loading configuration is shown in Fig.  1. The diameter of the disk is 2R and the crack length is 2a. A pair of compressive load, P, is applied at the boundary and across the diameter of the disk. The angle of inclination of the crack plane relative to the line of...

Keywords

Fracture Toughness PMMA Stress Intensity Factor Critical Stress Intensity Factor Brazilian Disk 

Notes

Acknowledgement

This work was supported by National Natural Science Foundation of China (Project No. 10202021).

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Copyright information

© Springer Science+Business Media, LLC 2006

Authors and Affiliations

  1. 1.CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Mechanics and Mechanical Engineering (5th)University of Science and Technology of ChinaHefeiP.R. China

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