Abstract
A simple modification is described of the Outwater torsion test method for determining the fracture energy of stiff materials and of adhesive joints. It permits large torsions to be applied and the corresponding torque to be simultaneously monitored. The modified test method can be used with specimens of simple rectangular shape and having a wide range of stiffness. As an example, the fracture energy is determined for molded rectangular bars of polystyrene having a wide range of thickness and of width.
Résumé
On propose une modification simple de la méthode d'essai en torsion de Outwater en vue de déterminer l'énergie de rupture dans des matériaux raides et dans des joints collés.
Cette amélioration permet d'appliquer des grandes torsions et le couple correspondant peut être simultanément enregistré. La méthode modifiée peut être utilisée sur des éprouvettes de forme rectangulaire simple, et présentant une large gamme de rigidité.
A titre d'exemple, on détermine l'énergie de rupture des barreaux rectangulaires en polystyrène moulé, d'épaisseur et de largeur très variables.
Similar content being viewed by others
References
J.O. Outwater and D.J. Gerry, Journal of Adhesion 1 (1969) 290.
J.A. Kies and A.B.J. Clark, paper 42 in Fracture 1969: Proceedings of the Second International Conference on Fracture, Brighton, 1969, ed. P.L. Pratt, Chapman and Hall, London (1969) 483–491.
A.G. Evans, International Journal of Fracture 9 (1973) 267–275.
J.-M. Charrier and A.N. Gent, Polymer Engineering Science 24 (1984) 1172.
J.J. Benbow and F.C. Roesler, Proceedings, Physical Society (London) B7 (1957) 201.
J.P. Berry, Journal of Applied Physics 34 (1963) 62.
A. VandenBoogaert and C.E. Turner, Transactions, Plastic Institute (London) F31 (1963) 109.
Author information
Authors and Affiliations
Additional information
On leave of absence from The University of Akron, Akron, Ohio for the period: January–May, 1984.
Rights and permissions
About this article
Cite this article
Cho, K., Gent, A.N. An improved torsional method for determining the fracture toughness of stiff materials and of adhesive joints. Int J Fract 28, 239–244 (1985). https://doi.org/10.1007/BF00035219
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00035219