Study of the mechanical behavior of orthotropic plates with a centered elliptic hole

Study of the mechanical behavior of orthotropic plates with a centered elliptic hole

Rabia Boubeker Mabrouk Hecini 

Laboratory of Mechanical Engineering, Mohamed Khider University, BP 145 RP,07000 Biskra, Algeria

Corresponding Author Email: 
rboubeker@yahoo.fr; mhecini@univ-biskra.dz
Page: 
381-398
|
DOI: 
https://doi.org/10.3166/rcma.2017.00020
Received: 
|
Accepted: 
|
Published: 
31 December 2017
| Citation

ACCESS

Abstract: 

The presence of the elliptical holes may lead to the increase in local stress, this phenomenon is known as stress concentration, has dangerous consequences what causes damage to the metal or composite structures. In this analytical and numerical study outlines the effect of the presence of elliptical hole on the mechanical behavior of composite structures. This is to determine the stress distribution around and away from the hole under pure tensile stress. The study focused on the evaluation of the stress concentration factor that is considered as an inducer of the local increase in stress due to the presence of the hole. This factor has been studied as a function of some parameters such as the variation of elliptical ratio (a/b) and the tensile stress of angles to the direction of large axis of the ellipse b (°/), and the variation of the fiber orientation.

Keywords: 

composite material, plates with a hole, elliptical hole, stress distribution, stress concentration factor

1. Introduction
2. Behavior of isotropic plates with a centered elliptical hole
3. Concentration of the stresses of a composite plate with an elliptical centered hole
4. Conclusion
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