Investigation of Static Deflection in Internal Stepped Cantilever Beam


Husam Jawad Abdulsamad*, Kadhum Jassem Wadi, Saddam Khalsan Al-Raheem, Luay S. Alansari


University of Kufa, College of Engineering, Department of Mechanical Engineering, Najaf, Iraq

Middle Technical University, Technical Instructors Training Institute, Baghdad, Iraq

Corresponding Author Email: husamj.alhamad@uokufa.edu.iq

This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

In this work, the static deflection of internal stepped cantilever beams with two steps was selected to be investigated by using Finite Element Method (FEM), Classical Rayleigh Method (CRM) and Modified Rayleigh Method (MRM). The static deflection was calculated at two positions, the end of the large thickness part and the free end where the load is applied. The results show that the length of the small thickness part, the large diameter (DL) and the small diameter (DS) are the main factors that affect the static deflection at free end. While the small diameter (DS) has no effect on the static deflection at the point where the inner diameter changes. Finally, the ANSYS and CRM results were close to each other at different conditions and the MRM fails to calculate the static deflection.