Review Study on Finite Element Analysis Method Used for Aerospace Structure Applications

Abstract

The size of the structural components is orders of magnitude smaller than the diameter of the spot welds utilized in the automobile and aerospace industries. The normal number of spot welds on an automotive body is between three and five thousand, making the 3-D Direct Finite Element Analysis (DFEA) of this class problem impractical. The Elastic Finite Element Alternating Method (EFEAM) has been expanded in this study to address the issue of panels experiencing elastic-plastic fracture in the presence of Multi Site Damage (MSD) fractures. In EFEAM, crack issues in an infinite plate are solved analytically. The goal of the study is to look into a few areas of high-speed machining for enhancing thin-walled aerospace components' precision. The method entailed creating a finite-element model of the workpiece to be machined and then analysing its frequency response. The workpiece's reaction to dynamic cutting force provides a clue as to the fastest speeds feasible while maintaining precision.