An Extended Endochronic Theory Formulation of Plastically DeformedDamaged Indian Bamboo under Uniaxial Compression

Journal of Applied & Computational Mathematics

article

Fozao DS¹  Foudjet EA²  Fokwa D³  Kouam A⁴ 

[1] Ministry of Public Works;Cresa Foret Bois, University of Dschang;Department of Civil Engineering, ENSET, University of Douala;ENSTP

关键词: Isotropic damage;    Bamboo;    Endochronic theory of plasticity;    Continuum damaged mechanics;    Plastic strain;    Principle of equivalent strain;   

DOI  :  10.4172/2168-9679.1000178

来源: Hilaris Publisher

【 摘 要 】

This paper presents a series of uniaxial compressive loading tests carried out on cylindrical samples of Indian bamboo, together with a stress strain model. The bamboo species Oxytenantera abyssinica, from the Congo Basin forest is used for these tests. The non-linear behavior of Indian bamboo may be attributed to two distinct mechanisms, plasticity and damage. These two mechanisms are described by the endochronic theory of plasticity and continuum damage mechanics. A dissipative model, taken into account plasticity and damage through various parameters is proposed. The parameters of the model are deduced from monotonic and cyclic uniaxial compressive tests. The proposed stress-strain modelis compared to the tests results and it can be found that the model fits well with experimental results.

【 授权许可】

Unknown