HW#4: 1: 25, 61, 63
25. Find the reactions and also the value of the bending
stress at a point 5 ft from the left end for the beam.
Ans. = 18,090 psi
1 = 0: R2 =
5000 4 + 1000 14 7
= 11,800 lb
10
2 = 0: R1 =
5000 6 + 1000 14 3
= 7200 lb
10
Moment at 5 f

MET 301
EXPERIMENT # 2
APPLICATION OF BONDED STRAIN GAGES
1. Objective
To study the stress and strain in a hollow cylindrical beam under bending, torsion and combined
bending and torsion, and the application of bonded strain gages in measurement of strain

MET-302 Analysis & Design of
Machine Elements II
CHAPTER 8
Lubrication Part 2
Presented by: Ahmed Belal
Reference: Spotts, Design of Machine Elements, 8th Edition
Dr. Herli Surjanhata, NJIT
Dr. Sam Lieber, NJIT
JOURNAL BEARING
Bronze Bushed
Journal Bearin

MET-302 Analysis & Design of
Machine Elements II
CHAPTER 5
Screws
Presented by: Ahmed Belal
Reference: Spotts, Design of Machine Elements, 8th Edition
Dr. Herli Surjanhata, NJIT
Dr. Sam Lieber, NJIT
Fasteners & Fittings
http:/www.youtube.com/watch?v=7ORom

New Jersey Institute of Technology
Department of Engineering Technology
MET 301 Analysis and Design of Machine Elements
Spring 2016
Monday:
5:45 PM to 9:45 PM
Room: ME 214
Text:
Required
Spotts, Shoup & Hornberger (8th Edition). Design of Machine Elements

MET-302 Analysis & Design of
Machine Elements II
CHAPTER 9
Ball & Roller Bearings
Presented by: Ahmed Belal
Reference: Spotts, Design of Machine Elements, 8th Edition
Dr. Herli Surjanhata, NJIT
Dr. Sam Lieber, NJIT
ROLLING CONTACT BEARINGS
Types of rolli

Objective:
The objective of this experiment is to understand the working principal of bonded strain gauge
and to study the stress and strain in a hollow cylindrical shaft under bending, torsion and
combined bending and torsion.
Procedure:
The experiment c

TRANSVERSE SHEAR STRESS
=
V
VQ
v Aa =
Ib
Ib
When finding transverse shear stress () for a composite section, the following
formula can be used:
V
V
= v Aa = (v1 Aa1 + v2 Aa 2 .)
Ib
Ib
Max. Transverse shear stress, max always occurs at NA (because Q is ma

V L
4. Find the moment of inertia of the section about the edge AB as shown in the gure below.
72%!" /
37,:124-Ry? O. Iorziw (@5721331'
U;
MI: 263.5774 4., 2,33 m: 161437;?qu
February 27, 2013 _ 4 of 4

Name:
3. A cylindrical steel bar with 2.4 in2 cross section, is carrying a simple tension load that is
continuouosly varying from Pmax= 40,000 lb and Pmm = 30,000 lb. The bar has the following
material properties:
Ultimate tensile strength Sm = 91,000 psi

Name;
3. One 5000 lb vertical force and one 10,000 lb horizontal force are acting on the cantilever
beam of l/2x4 cross-section, as shown below. Determine the normal bending stress (0) and
transverse shear stress (1:) developed at point A on the beam due

Name'
2. The 50 inch long beam is simply supported at R1 and R2. It is loaded with a 1000 lb
concentrated load, a 500 Ib/inch distributed load and a 15,000 lb-in moment, as shown.
(i) Determine reaction forces R1 & R2.
(ii) Determine the shear force on th

Name:
2. A plate is subjected to the following stresses:
ox = 23 MPa, 0y: ~200 MPa, and Ixy= 0 MPa.
3. If the plate is made of steel with on, 2 310 MPa
i. Find the value of FS by maximum shear theory
ii. Find the value of FS by the von Mises-Hencky theo

Spring 2013
MET 301: TEST 2
Attempt all questions
All computation steps must be shown to get full credit
1. The stress condition at a point is: 0x = 2000 psi, 0), = 10,000 psi and txy = - 3000 psi.
. Neatly draw a Mob: circle and mark all the signicant po

Spring 2013
MET 301: TEST 1: Room # GITC 1201
All computation steps are to be shown to get full credit
1. The bottom of the two hanger rods were at the same
horizontal level, before the uniform 2000 lb rigid weight
was hanged.
(1) Draw the free body diagr

MET-302 Analysis & Design of
Machine Elements II
CHAPTER 4
Springs
Presented by: Ahmed Belal
Reference: Spotts, Design of Machine Elements, 8th Edition
Dr. Herli Surjanhata, NJIT
Dr. Sam Lieber, NJIT
SPRING
A spring is a flexible element used to exert a

MET-302
Quiz #7
Name:_
Date: 11/16/16
Open Textbook and Notes. (Show all work). 30 minutes
A 206 bearing is subjected to the following work cycle:
Radial load of 500 lb at 150 rpm for 30% of the time
Radial load of 750 lb at 600 rpm for 10% of the time
Ra

MET-302
Quiz 4
Name:_
Date: 10/05/16
Open Textbook and Notes : 30 minutes (Show all work). You can use the space
provided. Turn in at the beginning of class 10/05/16.
A differential band brake is used to control the speed of the drum. Determine the
minimu

Chapter 2
Working Stress and Failure Theories
A Simplified Approach
We are interested in learning how static mechanical stress can cause failure in machine parts.
Static stress means that the stress has been applied slowly and is maintained at a steady le

1-21 Stress in three dimensions
In three dimensions, in each orthogonal direction X, Y & Z, there could be one normal and two
shear stresses. Thus the most generalized state stress at a point in 3D is as shown below. It is
also conveniently described by a

MET 301
1 of 5
Example Problems on Static Equilibrium
Example 1. Suppose one truck is parked on a bridge as shown in Figure 1. The truck weighs
1000 lb which is acting through its center of gravity (CG). The bridge weighs 200 lbs per feet,
which is unifor

MET 301: Homework #2
Due on 9/19
Rectangle:
bd 3 150 100 3
I0 =
=
= 12,500,000 mm 4
12
12
A = 150 100 = 15,000 mm 2
y = 50 mm
I 1 = I 0 + Ay 2 = 12,500,000 + 15,000 50 2 = 50,000,000 mm 4
One circle:
d 4 57 4
I0 =
=
= 518,166.5 mm 4
64
64
2
57
A=
= 2551.

MET 301
Homework #3:
R2
R1
Solution:
Taking moment about R2: R1x1500 = 180,000x900
R1= 180,000x900/1500 = 108,000 N
25
Shear force at the left of the load: V = 108,000 N
Moment of Inertia I = (150)(200)3/12 = 108 mm4
87.5
200
Area moments at 25, 50, 75 an

MET - 301
ANALYSIS & DESIGN OF MACHINE ELEMENTS
MECHANICAL ENGINEERING TECHNOLOGY
NEW JERSEY INSTITUTE OF TECHNOLOGY
Experiment Title
Report Submitted by:
Date performed:
Date submitted:
Other group members:
Instructor:
Students are not to write below thi

MECHANICAL ENGINEERING TECHNOLOGY
ESSENTIALS FOR LABORATORY REPORTS
The laboratory report should be clear and concise. A well written laboratory report should have
an acceptable form, and free of any grammatical and spelling error and written in your own

MET 301: Homework #1
Due on 9/12
Fall 2013
NOTE: Tables of material Properties such as modulus of elasticity (E) and coefficient of
thermal expansion () of engineering materials are attached at the end.
Solution:
Pal = 1000+500 = 1500 lb
Pbr = 500 lb
Tota

MET-302
Quiz 6
Name:_
Date: 11/02/16
Open Textbook and Notes. (Show all work). 30 minutes
1.
An air cooled 120o partial bearing which is loaded with 150 psi of projected area. The bearing is 2 in. in
diameter and 3 in. long with a radial clearance of 0.00

MET-302
HW Quiz 5
Name:_
Date: 10/19/16
Open Textbook and Notes : 30 minutes (Show all work). You can use the space
provided. Turn in at the beginning of class 10/19/16.
Find the maximum permissible static Load P which can be applied if the maximum
force

MET-302
Quiz 2
Name:_
Date: 9/21/16
Open Textbook and Notes : 30 minutes (Show all work). You can use the space
provided. Turn in at the beginning of class 9/21/16.
A screw has total area and stress area of 0.7854 and 0.663 in2 respectively, is attached
t