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Polymers Outperform Metals
In Precision Gearing
Some of the most innovative gears today are not
made from metal or injection-molded plastics but
from machined engineering polymers
Gears, especially in open gearin
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Plastics Identification Lab
NAME:_
Goal of Experiment: To see how effective various methods are in determining the identification of a
plastic.
At the end of lab, your group should present which plastics you identified your items to be and how
you
Chapter 4
Equilibrium of a Rigid Body
ILOs Covered in this Chapter
Draw Free Body diagrams for 2-D Objects
Formulate and solve equations of equilibrium
needed to calculate the reaction forces and
moments resulting from 2-D support
conditions.
Conditions o
Chapter 7
Internal Forces
Stress Elements for Tensile Stress
Stress Elements for Normal and Shear
Strain
If the bolt head and the supporting bracket are made of
the same material having a failure shear stress of t y =
120 Mpa, determine the maximum allowa
MCET»220 Your Name: 3; s
Principles of Statics Exam #2 kg 100 points
* State Assumptions, Show FBDs, sketches, all symbolic equations and solution steps. m
1. For the pin connected truss below, find
jgggggji g a. (20 points) The forces in members AB an
MCET 220 Your Name: 6/?
Statics Test # 3 50 points
m M FBD's, sketches, all symbolic equations and solution steps. *"
Place a box around each numeric answer.
1. A force P is applied to one end of the cord which makes 1 1/: turns arou d the fixed shaft and
061 0302.04 Your Name:
k b3
Statics Exam #1 100 points
m Shgw FBD's, sketches, all symbolic equations and solution steps. m
. b0 'u" 9° numeric "we" . . . . . . . . . . . . . . .
1. The spike below is to be removed from the timber by applying a force alo
MCET 220 Your Name: K Mi
Statics Test #2 (T
* Show FBDs, sketches, all symbolic equations and solution steps. *
50 points
Place a box around each numeric answer.
1. (20 pts)The beam below is subject to the 2 forces and one moment shown. It has a pinned
Introduction to Statics
MCET 220
Program: Quiz 11 ~ Name: La
(10 Points) The hoist supports a 40 kN engine. Determine the forces the engine creates on
members FE and BD. (9 +14 Vt
p/N Q I: F A (26 1 F0 i 0L , ., 1 12er , , I.
1 3b (9L ('5 E _ i
. _ AOILJ
(D
Introduction to Statics
MCET 220
Quiz4 Name: keg
(10 Points) Determine the components of reaction acting at the smooth journal bearings A, B,
é/ULH
:
MLO (ZAX QAZ (293 Q R 26 p145 :6,
2 I I
and C.
Chapter 5
Equilibrium of a Rigid Body
ILOs Covered in this Chapter
Use the method of joints and the method
of sections to calculate the forces in
members of a pin-connected plane truss.
Calculate the mechanical advantage of
pulley systems.
Simple Trusses
Chapter 3
Force System Resultants
ILOs Covered in this Chapter
(Moments)
Develop critical thinking and problem solving
skills.
Improve your skills with algebra and
trigonometry
Break force vectors into rectangular
components
Calculate the resultant of co
Centroid Calculation using Composite Shapes
units
mm
ID
Shape
Add or
Sub
1
2
3
4
5
triangle
triangle
rectangle
rectangle
circle
Add
Add
Add
Add
Sub
input data
calculated values
dim1
mm
54.0
84.0
54.0
84.0
20.0
dim2
mm
30.0
49.5
54.0
34.5
x_bar
65.43 mm
xi
EXCEL Project #2
Resultant Force
0610 - 302
your name(s)
Vector Diagram data
Plot 9 vectors and the resultant
x
y
Force ID
Mag
Angle
x-comp
y-comp
acute ang
0
0
F1
40
-10
39.39
-6.95
10.0
39.39
-6.95
End pt of F1
F2
60
95
-5.23
59.77
85.0
34.16
52.83
End
EXCEL Project #1 Chart
Plot Vector Components
0610-302
ID
Angle
Force Magnitu
(deg)
Units
de
from
+ x-axis
Horiz
Comp
Vert
Comp
Jack Smith
Resultant of
the
Components
Angle of
the
Resultant
0 to 180
0 to -180
Fy/Fx
tan ang
Fig P2-29
N
784
30
679.0
392.0
7
Strength of Materials
Chapter 8
Design Properties of Materials
Well look at the properties of materials that are important in terms of design:
Strength
Weight
Cost
Appearance
Etc.
We will focus in on the performance parameters of the materials.
Many prope
Strength of Materials
Chapter 7
Basic Concepts in Strength of Materials
The objective of Strength of Materials is to ensure Safety/A safe Design
Examples of Types of Failure:
Material can Fracture or break due to a load
Material can deform excessively due
Chapter 6
Centroids
ILOs Covered in this Chapter
Calculate the Centroid for plane areas
consisting of geometric and structural
shapes.
Develop critical thinking and problem
solving skills.
Centroids
The Centroid is the geometric center of an
object.
If th
Chapter 2
Force Vectors
ILOs Covered in this Chapter
Break force vectors into rectangular
components
Calculate the resultant of concurrent and nonconcurrent forces.
Scalars Vs. Vectors
Scalar: A scalar is any positive or negative
physical quantity that ca
610-302
Introduction to Statics
Mechanics: The
branch of physical
science concerned
with the state of
rest or motion of
bodies that are
subjected to the
action of forces.
Basic Entities to be Used
Length: Locating points and describing size
Mass: A measur
Statics
Chapter 6
Centroids
ILOs covered in the section:
Calculate the Centroid for plane areas consisting of geometric and structural
shapes.
Develop critical thinking and problem solving skills.
Centroids:
The Centroid is the geometric center of an obje
Introduction to Statics
Chapter 5
Structural Analysis
ILOs covered in this Chapter:
Use the method of joints and the method of sections to calculate the forces
in members of a pin-connected plane truss.
Calculate the mechanical advantage of pulley systems