Share Email Print
cover

Proceedings Paper

Optical experiment testing for fracture toughness of directional plexiglass along different directions
Author(s): Xinhua Ji; Wei Shang; Xiaochuan Zhang; Jinlong Chen
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Two specimens along different directions are cut from directional Plexiglas plate of biaxial tension. Digital image correlation method in frequency domain is applied to measure elastic modulus. Through analysing elastic modulus along different directions, directional Plexiglas is anisotropic material. Because of the anisotropic mechanical behaviors in directional Plexiglas, the values of fracture toughness are related to the propagation directions of cracks. The specimen is very small, so there is not enough space to put the extensometer. Digital image correlation method in frequency domain which substitutes the extensometer is applied to test crack opening displacement V. In the paper fracture toughness values are tested along two directions. Experiment results indicate that the cracks of different propagation directions have different fracture mechanics properties.

Paper Details

Date Published: 25 August 2009
PDF: 6 pages
Proc. SPIE 7375, ICEM 2008: International Conference on Experimental Mechanics 2008, 73751M (25 August 2009); doi: 10.1117/12.839066
Show Author Affiliations
Xinhua Ji, Tianjin Univ. (China)
Wei Shang, Tianjin Univ. (China)
Xiaochuan Zhang, Tianjin Univ. (China)
Jinlong Chen, Tianjin Univ. (China)


Published in SPIE Proceedings Vol. 7375:
ICEM 2008: International Conference on Experimental Mechanics 2008

© SPIE. Terms of Use
Back to Top