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Open Access Research Article

Crack Length Influence on Stress Intensity Factors for the Asymmetric Four-point Bending Testing of a Polyurethane Foam

Dragos Alexandru Apostol, Florin Stuparu, Dan Mihai Constantinescu, Liviu Marsavina, Emanoil Linul
DOI Not yet assigned
Published 30 Jun 2016
Pages 280–282

Abstract

Mixed mode four-point testing is performed on polyurethane foams. This paper presents only the results on the stress intensity factors (SIFs) obtained experimentally for a density of 325 kg/m3, although tests were done for three foam densities. An asymmetric four-point bending setup was used for determining the critical SIFs in Mode I and Mode II, and discussions on the influence of the initial crack length on the SIF values are done. As initial crack length is increased the theoretical predictions give a better comparison to experimentally obtained results.

Keywords: mixed-mode; polyurethane foams; asymmetric four-point bending; crack length

How to Cite this Article

Apostol, D., Stuparu, F., Constantinescu, D., Marsavina, L., & Linul, E. (2016). Crack Length Influence on Stress Intensity Factors for the Asymmetric Four-point Bending Testing of a Polyurethane Foam. Materiale Plastice, 53(2), 280–282.
Apostol D, Stuparu F, Constantinescu D, Marsavina L, Linul E. Crack Length Influence on Stress Intensity Factors for the Asymmetric Four-point Bending Testing of a Polyurethane Foam. Materiale Plastice. 2016;53(2):280–282.
D. Apostol, F. Stuparu, D. Constantinescu, L. Marsavina, and E. Linul, "Crack Length Influence on Stress Intensity Factors for the Asymmetric Four-point Bending Testing of a Polyurethane Foam,” Materiale Plastice, vol. 53, no. 2, pp. 280–282, 2016.
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