EGR 272 : Strength of Materials
A study of the stresses and strains caused by tensile, compression and shearing forces. The course includes stress strain curves and the mechanical properties of engineering materials and investigates shear and bending moment diagrams and stresses due to beam loading. Students also study the strength of bolted and welded joints, torsion and column action. The laboratory includes the study of the general material testing techniques used to analyze the mechanical properties of materials. Prerequisite: EGR 251. Three lecture hours and two laboratory hours per week. Instructional Support Fee applies.
1. Define material strength, simple stresses (tension, compression, shear, and bearing) and strain and explain how these quantities differ. 2. Describe how indirect loadings (bending and twisting) cause these simple stresses and to be able to determine the stress magnitudes. 3. Describe how materials and structure will respond to the applied stresses (simple or indirect). 4. Define the material properties important to engineering design including strength, modulus of elasticity, poisons, ratios, and thermal characteristics and determine these properties using experimental methods. 5. Define torque and torsion and how they apply them to different types of beams, shafts and loadings. 6. Use beam analysis tools (Graphical Integration and shear and moment diagrams) to determine beam strength and/or deflection. 7. Apply the analysis and design techniques associated with columns, bolted, riveted, and welded joints.