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2017 | OriginalPaper | Buchkapitel

2. Experimental Fracture Analysis of Tropical Species Using the Grid Method

verfasst von : Bernard Odounga, Rostand Moutou Pitti, Evelyne Toussaint, Michel Grediac

Erschienen in: Fracture, Fatigue, Failure and Damage Evolution, Volume 8

Verlag: Springer International Publishing

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Abstract

The fracture processes of three tropical species: Aucoumea klaineana, Malicia excelsa and Pterocarpus soyauxii, are investigated with the grid method. These species are widely used in many sub-tropical countries, in timber building construction, as well as in semi-finished products and paper fabrication. However their fracture behaviour must still be investigated, data being scarcely available on this subject. Modified Mixed Mode Crack Growth specimens are used in order to obtain a stable crack growth evolution in opening, shear and mixed mode ratios. The images of the grid are analysed to provide the crack opening displacement and the crack tip location. The stress intensity factors and the critical energy release rates for each species are then obtained by using the compliance method in imposed displacement. The semi-experimental energetic method is also applied in order to show the efficiency of the proposed technique to characterize the fracture properties of the tropical species under study.

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Metadaten
Titel
Experimental Fracture Analysis of Tropical Species Using the Grid Method
verfasst von
Bernard Odounga
Rostand Moutou Pitti
Evelyne Toussaint
Michel Grediac
Copyright-Jahr
2017
DOI
https://doi.org/10.1007/978-3-319-42195-7_2

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