Numerical Investigation on Stress Behavioural Characteristics of Perforated Rectangular Plates

Abstract

In the realm of structural engineering, thin-walled plates and panels serves as indispensable components for both straight-ward and intricate configurations. The plates featuring various cut-outs shapes plays a pivot role particularly in aerospace structures. Understanding the impact of cut-outs on load bearing capacity and stress concentration is a paramount in designing the complex structures. The part of the research work carried-out in this paper delves into the stress analysis of plates with various central cut-outs subjected to uniform pressure throughout. The primary objective of this research work is to showcase the precision and simplicity inherent in the present numerical solution for the stress analysis of composite plate. The investigation considers a spectrum of factors such as cut-out geometry, material properties, fibre angles. A critical facet of the investigation lies in comparing the results derived from the previously available literatures with those obtained through analytical solution, experimental and finite element methods, aiming to validate the accuracy and efficacy of the present model. These considerations mirror the diverse scenarios encountered in the practical applications ensuring the applicability and robustness of the numerical model. The presented solution emerges not only as an accurate means of stress analysis but also as a testament to the potential for simplifying the intricate processes involved in designing and optimising composite structures with central cut-outs.