International Journal of Advanced Research in

Science and Technology (IJARST)


Damage study of Acrylonitrile Butadiene Styrene test pieces subjected to uniaxial loading.

A. Lamarti*, A. Hachim, Kh. El Had, A. Douraid, and M. Elghorba
Laboratory of Control and Mechanical Characterization of Materials and of Structures, National School of electrical and mechanical, Hassan II University, BP 8118 Oasis, Road El Jadida, Casablanca, Morocco.

A B S T R A C T

In industrial sectors such as: aeronautics, automotive or general mechanical industries, etc. Mechanical components are subjected to several types of stresses: thermal, chemical, mechanical and cyclical. These constraints cause a progressive degradation of the characteristics of the material, leading to a sudden rupture. For this purpose we have studied the mechanical behavior of an amorphous polymer, Acrylonitrile Butadiene Styrene (ABS), thought uniaxial tensile testing on pierced test pieces and with different notch lengths ranging from 1 to 14 mm. The proposed approach consists in analyzing the evolution of the global geometry of the strain curves obtained by considering the zones and the characteristic points of these curves and also taking into account the effect of the damage on the mechanical behavior of the polymers namely the ABS.


I N T R O D U C T I O N

Amorphous polymers require a great interest due to their importance in the industrial applications. This importance is reflected in numerous works concerning their mechanical responses [4]. However, if one considers only their mechanical properties, their behavior is complex and constitutes a major obstacle, as the potential users encounter difficulties in taking account of them during the sizing and optimization stages. This difficulty is related to the particular structure of the amorphous polymers [3]. The disordered nature of macromolecular chains makes it difficult to understand the mechanisms of deformation and damage on a microscopic scale. Nevertheless, plasturgists must provide answers about the durability of their products under certain conditions of solicitation.


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