Three dimensional analysis for effect of fibre orientation on stress concentration factor in fibrous composite plates with central circular hole subjected to in-plane static loading

Abstract

A number of analytical and numerical techniques are available for the two dimensional study of stress concentration around the hole(s) in isotropic and composite plates subjected to in-plane or transverse loading conditions. The information on the techniques for three dimensional analyses of stress concentration around the hole in isotropic and composite plates subjected to in-plane or transverse loading conditions is, however, limited. In the present work, distributions of stress in rectangular fibrous composite plates with central circular hole subjected to in-plane static loading have been studied using 3-D finite element method. The aim of work is to analyze the effect of diff erent fibre orientation upon stress concentration factor (SCF) around the hole. Results are obtained for fibrous plate made of three diff erent orthotropic composite materials to find out the variation of stress concentration factor on elastic constants also. The effect of tlA and DIA (where t is plate thickness, D is hole diameter and A is plate width) ratio upon stress concentration factor for diff erent cases is also studied. All results are presented in graphical form and discussed. The analytical and experimental procedure for such type of problem is very diff icult and hence the finite element method adopt for whole analysis. The finite element formulation and its analysis are carried out using ANSYS package.

Damage Behaviour and Stress Concentration Factor of Open Hole Tensile (OHT) Glass Fibre Reinforced Polymer (GFRP) Composites

“…The results show a good correlation with the analytical results (see Table 1) according to the value of SCF, as seen in Figure 14. It is clear that the presence of the hole and the fibre orientation (θ) have a significant influence on the SCF in GFRP composites [36,37,38]. maximum stress Figure 14.…”

Experimental and simulation analysis of fatigue life of aluminum 6061-T6 alloy

“…Several studies have been published in which the fatigue life was predicted theoretically or by comparing it to experimental results (Adigio and Nangi, 2014; Singh et al , 2014; Ergenc et al , 2017; Gurubaran et al , 2017; Lesiuk et al , 2018). The ANSYS Workbench tool was also used in predicting the stress concentration areas (Jain and Kumar, 2021; Jain et al , 2013). The 3 D model, on the other hand, was created using computer-aided design (CAD) software before being integrated into the numerical software.…”