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Chapter 4
4-2 At the heart of any good automobile engine is a piston return spring that is often fabricated from
SAE 1020 annealed steel. During a tension test of this alloy, the following data were r
EMch 416
Stresses and Stress Transformations
Analysis of Stress
What is Stress?
Force = Distributed Force
Area
There are two types of stress:
1. Normal stress ( ) associated with force components
acti
EMch 416
Tensile and Compressive
Properties
Tensile and Compressive Response (Brittle)
As we move up the stress strain curve two things can happen:
1) Response stays linear to failure
x
fracture
Britt
EMch 416
Failure and Failure Analysis of
Solids
Failure Analysis procedures
Failure Analysis
Basic Approach to Failure Analysis
Off all the things you must do, it is extremely
important that you:
Fail
Problem 7
A uniform square crate is released from rest with corner D directly above A
and it rotates about A until its corner B impacts the floor and then it rotates
about B. The floor is rough enough
Equation Sheet for E MCH 212/212H Dynamics
Miscellaneous
Quadratic Formula: If ax 2 C bx C c D 0, then x D
b
p
b2
4ac
.
2a.
Law of Cosines: C 2 D A2 C B 2 2AB cos .
Component Transformations: For two
EMCH 212/212H
Additional Homework 14 Problem
Determining the Motion of a Pushed Rectangular Container
A large rectangular container is at rest on a rough
surface when someone approaches it and pushes
Problem 3 (30 pts)
The thin uniform bar of mass m and length ` is released from rest in the
vertical position shown. The small roller at A is pinned to the end of
the bar and it rolls freely on the in
EMCH 212/212H
Additional Chapter 7 Problem
Box Tipping Over a Corner
A uniform square box of mass m is place on the corner of a table with
the center of the box directly over the corner, as shown in t
Figure 3-65 Final sketch for Tutorial 1
Saving the Sketch
1. Choose the Save button from the Menu Bar to invoke the Save As dialog box.
2. Choose the New Folder button from the Save As dialog box. Ent
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PENN STATE GREATER ALLEGHENY CAMPUS
EMCH 211 - STATICS, Section 1, FALL 2017
Tuesday, Thursday 1:35 pm to 2:50 pm
Frable 223
Instructor: Dr. Ben Brown
Office: Frable Room 204C
Office Hours: TBA
Phone:
3
2] Using the discontinuity functions, derive the elastic curve equation for theoverhanging
beam shown below. Take E1 to be constant. 3] If the Tbeam section, show
n below, is subjected to the verti
r-
2] The solid 50mm diameter aluminum shaft shown below, is subjected to the torques
aximum shear stress in the shaft (b) the angle
applied to the gears; determine: (a) the m
= 26 GPa.
respect to th
2] The truss shown below is pin supported at point A and point G. Determine:
(a) The force in member DC, using the method of joints,
(1) The force in member PC, using the method of sections.
.32.
0