ME 220 (MODS 2)
Assignment 7
1. The state of strain at a point on the arm has components = 250(106), = 450(106), and
Plane-strain transformation
= 825(106 ). Determine (a) the in-plane principal strains and (b) the maximum in-plane
shear strain and avera
ME 631-Course attributes
(1) Lectures (mandatory attendance) - 1
undocumented absence deducts 5% from
the final grade
(2) Lab project/report 50% (max. 4
students per team)
(3) Individual conference type presentation
(10 min per presentation) 50% (e-mail
y
1
ME 631-Mechanical Metallurgy-lectures content
1. Tensile testing-stress/strain curves of metals and alloys at room
temperature
2. Fundamentals of dislocations and the plasticity of metals and
alloys
3. Strengthening mechanisms of metals and alloys
Work
Time table ME 631-Mechanical Metallurgy-presentations S14
Date
May 5
May 12
May 19
May 26
June 2
June 9
June 16
June 23
June 30
July 7
July 14
July 21
July 28
Topic
Lecture
Lecture
Victoria Day (no class)
Lecture
Lecture
Lecture
Lecture
Severe Plastic Def
ME220 Tutorial 6
1. Determine the equivalent state of stress on an element at the same popint which represents (a)
the principal stress, and (b) the maximum in-plane shear stress and the associated average
normal stress. Also, for each case, determine the
ME220 Tutorial 7
1. The stat of plane strain on an element is x = -300(10-6), y = 0, xy = 150(10-6). Determine the
equivalent state of strain which represents (a) the principal strains, and (b) the maximum inplane shear strain and the associated average n
ME220 Tutorial 4
1. The bent shaft is fixed in the wall at A. If a force F is applied at B, determine the stress
components at points D and E. Show the results on a volume element located at each of the
points. F = 12 lb and = 45.
ME220 Tutorial 1
1. Determine the moment of inertia for the given cross-section
2. Draw the shear and moment diagram for the simply supported beam. Determine the maximum
bending stress with the assumption that the cross-section of the beam is the same as
ME220 Tutorial 5
1. Determine the maximum allowable force P, if the column is made from material having an
allowable normal stress of allow = 100 MPa.
2. Draw the free-body diagram for the pliers and determine the internal resultant shear force (V)
and mo
ME220 Tutorial 2
1. Determine the maximum shear stress in the T-beam at the critical section where the internal
shear force is maximum.
2. Determine the maximum shear stress in the T-beam at section C. Show the result on a volume
element at this point.
ME 220 (MODS 2)
Assignment 4 Problems
1. If the wide-flange beam is subjected to a shear of = 20 , determine the shear stress on the web
at A. Indicate the shear-stress components on a volume element located at this point.
(Answer: 2.56 MPa)
Transverse Sh
ME 220 (MODS 2)
Assignment 3 Problems
1. A shaft is made of a steel alloy having an allowable shear stress of = 12 .If the diameter of
the shaft is 1.5 in., determine the maximum torque T that can be transmitted. What would be the
maximum torque T if a 1-
ME 220 (MODS 2)
Assignment 2 Problems
1. The strut is supported by a pin at C and an A-36 steel (E=29,000 ksi, = 36 ksi) guy wire
AB. If the wire has a diameter of 0.2 in., determine how much it stretches when the distributed
load acts on the strut.
(Answ
ME 220 (MODS 2)
Assignment 5 Problems
Thin-walled pressure vessel
1. A pressurized spherical tank is to be made of 0.5-in.-thick steel. If it is subjected to an internal
pressure of = 200 , determine its outer radius if the maximum normal stress is not to
ME 220 (MODS 2)
Assignment 9
Deflection by Moment Integration
1. Determine the equations of the elastic curve using the x1 and x2 coordinates. EI is constant.
2. Determine the equations of the elastic curve for the beam using the x1 and x2 coordinates. EI
ME 220 (MODS 2)
Assignment 8 Solutions
1. The strain in the x direction at point A on the steel beam is measured and found to be =
100(106 ). Determine the applied load P. What is the shear strain at point A? =
Material Property Relationships
29(103 ) , =
ME 220 (MODS 2)
Assignment 1 Problems
1. Determine the resultant internal loadings in the beam at cross sections through points D
and E. Point E is just to the right of the 3-kip load.
(Answer: ND = 0; VD = 0.750 kip; MD = 13.5 kipft;
NE = 0; VE = -9.00 k