The Factor of Safety and Simple Design Problems
by When designing an object’s shape and dimensions, we need to select the factor of safety. The purpose of the factor of safety is to limit …
Homework Assignment 2
Problem Description: Half of the 2D cross-section of a cylindrical object is shown in the figure below. All the units are in millimeters. Force and …
Thermal Deformation and Temperature-Induced Stress
In this lecture, we explain temperature-induced deformation and stress. The YouTube video accompanying this post is given below. Consider an object whose 2D projection is …
Statically Indeterminate Problem (Axial Deformation)
Example 1: Consider the axial member constrained between two planes and . The cross-section area is and the modulus of elasticity are given. A numerical …
Poisson’s Ratio
In this lecture, we explain Poisson’s ratio. Consider the situation shown in Fig. 1 below. Force is applied in the direction. We assume that the …
Deformation of Members Under Axial Loading
In this lecture, we explain how to calculate the deformation of objects under the action of axial force. A YouTube video accompanying this lecture is …
Deformation, Strain, and Hooke’s law
In this lecture, we will introduce very important concepts. We will explain the concepts of axial deformation, axial strain, and we will learn one important …
Stress on an Oblique Plane Under the Action of Axial Force
In this strength of materials and mechanics lecture, we will analyze the stress field under the influence of an axial force. We will be interested …
Shearing Stress
In this lecture, we introduce the concept of shear stress. Consider the load scenario and a 2D sketch of an element shown in Fig. 1 …
Move (Translate) Forces From One Point to Another
This brief lecture explains how to move (better to say “translate”) forces from one point to another. This is a useful technique for analyzing the …