Experimental evaluation of the fracture toughness (K1c) of an epoxy resin
- 1 July 1974
- journal article
- Published by SAGE Publications in Journal of Strain Analysis
- Vol. 9 (3) , 166-171
- https://doi.org/10.1243/03093247v093166
Abstract
Fracture-toughness tests were conducted on Araldite CT 200, in order to obtain K1c, the plane-strain, mode 1 critical stress-intensity factor. Two essentially different methods were used, namely the photoelastic method and the quasistatic energy method. In the photoelastic method, stress fringe patterns were analysed at load intervals up to failure and the stress-intensity coefficients obtained were compared with those from the boundary collocation method. In the energy method, two types of specimen geometry were tested, resulting in stable crack propagation. Good correlation was obtained between the two methods.Keywords
This publication has 7 references indexed in Scilit:
- Photoelastic determination of stress-intensity factorsExperimental Mechanics, 1971
- Quasi-static crack propagationProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1967
- KerbspannungslehrePublished by Springer Nature ,1958
- On the Stress Distribution at the Base of a Stationary CrackJournal of Applied Mechanics, 1957
- Experiments on Controlled FracturesProceedings of the Physical Society. Section B, 1957
- Bearing Pressures and Cracks: Bearing Pressures Through a Slightly Waved Surface or Through a Nearly Flat Part of a Cylinder, and Related Problems of CracksJournal of Applied Mechanics, 1939
- The splitting strength of micaProceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character, 1930