# Strength of Materials 2

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1. What is the centroidal moment of inertia of a rectangular cross section? 2. What is the moment of inertia of a rectangular cross section with respect to its base? 3. What is the parallel axis theorem?
The MOI wrt any given axis equals the MOI wrt the parallel axis through the centroid plus Ad2.  4. How is shear stress related to torque and polar moment of inertia? 5. What are the two expressions for radius of gyration?
• The radius of gyration is the distance (r, k) where all the (area, mass) would be located and give the same moment of inertia (I).
•  6. What is Hooke's Law for normal stress and for shear stress?  (psi, MPa) 7. How can Hooke's Law (s=Ee) be combined with the definitions of engineering stress (s=F/Ao) and engineering strain (e=δ/Lo) be combined into an expression for elongation (δ)? (in, m)
8. The strain energy in a member loaded in tension or compression is... (in-lbf, N-m)
9. How are thermal stress ( ) and strain ( ) defined?  10. How are the coefficients of area expansion ( ) and volumetric expansion ( ) related to linear expansion ( )?  11. What are the equations for biaxial loading on an inclined plane?      12. What are the principal stresses in two dimensions?      Author: RJVan ID: 313913 Card Set: Strength of Materials 2 Updated: 2016-01-29 01:46:35 Tags: 51 Folders: Mechanical Engineering Description: Mechanical Professional Engineering Exam Review Show Answers: