ESM 2204 Mechanics of Deformable Bodies
CRN 92828 (MWF, 1:25 - 2:15)
Information for Test 1
Time: 7:00 - 8:30 p.m.
Date: Wednesday, September 17, 2008
Location: A-O in Engel 223, P-Z in Pamplin 30
Problems: 7 multiple-choice problems (70%) and 1 work-out problem (30%)
Format: Closed books, closed notes, and 8.5" 11" self-made and hand-written
formula sheet that contains formulas only
Materials: Lectures 1 - 8
Lecture 1: Axial loading, normal stress, cross-sectional area.
Lecture 2: Shear loading, shearing stress, shear plane and shear area; shearing stresses
in pins (single shear and double shear connections); bearing stress, bearing and pro-
jected area, bearing stress inside pin holes.
Lecture 3: Factor of safety; ultimate load, allowable load, ultimate stress, allowable
stress; design of structures with factor of safety.
Lecture 4: Normal strain (axial loading), change in length, original length; stress-
strain diagram, Hooke’s law, small deformation (linear stress-strain relation), Young’s
modulus (modulus of elasticity); deformation under axial loading, composite members.
Lecture 5: Statically indeterminate problems, static equilibrium and deformation
conditions (equations).
Lecture 6: E¤ect of temperature changes, thermal deformation, thermal strain, con-
strains and reactions, thermal stress.
Lecture 7: Stress at a point (6 components); lateral deformation and lateral strain,
Poisson’s ratio; multiaxial loading, generalized Hooke’s law; shearing strain, shear
modulus (modulus of rigidity); relation among Young’s modulus, Poisson’s ratio, and
shear modulus.
Lecture 8: Stress concentrations, maximum stress and average stress, stress concen-
tration factor, holes and …llets, radius and total width.
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