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Artigo Científico | Comportamento Mecânico dos Materiais | Inglês | 10/07/2006
Autores: Amauri Bravo Ferneda, Benedito de Moraes Purquerio, Jonas de Carvalho, Romeu Rony Cavalcante da Costa, Sérgio Persival Baroncini Proença, Volnei Tita
Palavras-chave: biopolymer, castor oil, compression test, mechanical behavior
Resumo: Many methods have been developed to test and evaluate the mechanical properties of the biopolymer from castor oil employed in implants and osteo-repositions, among other things. Most of the methods are performed under quasi-static and cyclic loads (creep and relaxation tests) and under high strain rate, uniaxial compression conditions. This paper presents and discusses the development and applicability of a simple load-application apparatus, devised to reduce shear and barrelling effects on specimens and allow for conventional strain around 45%. Besides contributing valuable information on the mechanical behavior of the castor oil polyurethane, the results of this research point to multiple biomedical applications for this material.
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