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# EGR 320 - Mechanics of Materials

Credits: 3
Instructional Contact Hours: 3

Considers effects of tension and compression, shear, torsion, bending and buckling loads on structures and machine members and their consequent effects on stress distributions and deformations. Emphasizes design as well as analysis.

Prerequisite(s): EGR 215
Corequisite(s): None
Lecture Hours: 45 Lab Hours: 0
Meets MTA Requirement: None
Pass/NoCredit: No

Outcomes and Objectives
1. Calculate internal stresses of a structure/machine component under an external load.
1. Determine normal stress under axial load.
2. Determine shear stress under shear load.
3. Determine shear stress under torsion load.
4. Determine normal and shear stresses under bending load.
5. Determine normal stress due to temperature effects.
2. Calculate deformations of a structure/machine component under an external load.
1. Determine deformation under axial load.
2. Determine angle of twist of a shaft in torsion.
3. Determine deflection of a beam in bending.
4. Determine deformation due to temperature effects.
3. Develop graphical, math, and computer skills in solving engineering problems.
1. Apply Algebra, Trig, or Calculus to all problems.
2. Draw Shear and Bending Moment Diagrams.
3. Draw the Mohr's Circle of a generalized stress element under load.
4. Design a structure/machine component to withstand a given external load.
1. Design the diameter of a transmission shaft in torsion and bending.
2. Design the cross-section of a beam in bending.
3. Design a bolted joint under tension.
5. Calculate the critical load to induce buckling in a column.
6. Calculate the tensile/compressive or shear stresses of the elements in a loaded joint.
1. Demonstrations of theoretical principles will utilize tension/compression load frame, torsion machine, and impact tester.
7. Apply the superposition principle to calculate reactions of statically indeterminate members such as bars in tension, shafts in torsion, or beams in bending.