A method for estimating the fracture toughness of rubbur-like materials is presented. Experimental data of a notched natural rubber sheet is analysed by application of the path-independent J-integral. A finite element code for large elastic deformations is used to evaluate the deformed shape of the rubber at crack growth initiation. Discussed is a stability criterion based on the existence of a critical value of J in relation with the experimental results.
Fracture toughness evaluation of natural rubber / Dragoni, Eugenio; G., Medri. - In: THEORETICAL AND APPLIED FRACTURE MECHANICS. - ISSN 0167-8442. - STAMPA. - 10:(1988), pp. 79-83.
Fracture toughness evaluation of natural rubber
DRAGONI, Eugenio;
1988
Abstract
A method for estimating the fracture toughness of rubbur-like materials is presented. Experimental data of a notched natural rubber sheet is analysed by application of the path-independent J-integral. A finite element code for large elastic deformations is used to evaluate the deformed shape of the rubber at crack growth initiation. Discussed is a stability criterion based on the existence of a critical value of J in relation with the experimental results.
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