Question Description
TECH 3513 Material Tests and Analysis
CHAPTER 7 HOMEWORK
7.49 The area under each curve in Figure 7.11 on page 179 is estimated by adding the areas under the initial elastic region and the flat regions under the curve. This area under the curve is toughness. The data is given in the table below. Plot the graph of the Toughness (y axis) versus Temperature (x axis) (plot the points and then draw a curve through the points). Use the scale from -40 to 100 by 20 on the x-axis and use the scale 100 to 800 by 100 on the y-axis.
Temperature (oC) Toughness (Mj/m3)
-25 140
0 635
25 760
50 730
65 520
80 270
7.51 Use the materials shown in the table below. The formula for maximum deflection (d) of a cantilevered beam is d = P * L3 / (3 * E * I), where P is the load (50 kg = 490 N, use P = 490 N), L is the beam length (L = 1 m), E is the elastic modulus, and I is the moment of inertia (I = b*h3/12, where b = 0.02 m and h = 0.075 m, so I = 7.03 x 10-7). Calculate the maximum deflection. ANSWER IN METERS.
Material Elastic Modulus (E) (Pa)
ABS 2.1 x 109
Acetal 2.45 x 109
Epoxy 10.25 x 109
ABS, reinforced 7.5 x 109
Acetal, reinforced 10 x 109
Epoxy, reinforced 36.5 x 109
Aluminum 70 x 109
Steel 195 x 109
Note: The results show that ABS has the most deflection and steel the least.
7.53 Use the table of values below. The formula for required weight (N) is W = p * g * F * L /
y where p is the density, g is the gravitational constant (9.81 m/s2), F = 5000 N, L = 1 m, and
y is the UTS. Calculate the required weight. ANSWER IN KILOGRAMS.
Material Density (p) (kg/m3) UTS (
y) (N/m2)
HMW polyethylene 950 2.4 x 107
Polyester 1270 5 x 107
Rigid PVC 1400 4.1 x 107
ABS 1030 3 x 107
Polystyrene 1000 3.2 x 107
Reinforced nylon 1130 9 x 107
Click here to download the answer sheet for Chapter 7 Homework
this is the number of the book
Required Textbook
- Kalpakjian & Schmid (2014), Manufacturing Engineering and Technology, 7th Edition, Pearson Education, Inc.
- ISBN-13: 978-0-13-312874-1
Our website has a team of professional writers who can help you write any of your homework. They will write your papers from scratch. We also have a team of editors just to make sure all papers are of HIGH QUALITY & PLAGIARISM FREE. To make an Order you only need to click Ask A Question and we will direct you to our Order Page at WriteDemy. Then fill Our Order Form with all your assignment instructions. Select your deadline and pay for your paper. You will get it few hours before your set deadline.
Fill in all the assignment paper details that are required in the order form with the standard information being the page count, deadline, academic level and type of paper. It is advisable to have this information at hand so that you can quickly fill in the necessary information needed in the form for the essay writer to be immediately assigned to your writing project. Make payment for the custom essay order to enable us to assign a suitable writer to your order. Payments are made through Paypal on a secured billing page. Finally, sit back and relax.
About Writedemy
We are a professional paper writing website. If you have searched a question and bumped into our website just know you are in the right place to get help in your coursework. We offer HIGH QUALITY & PLAGIARISM FREE Papers.
How It Works
To make an Order you only need to click on “Place Order” and we will direct you to our Order Page. Fill Our Order Form with all your assignment instructions. Select your deadline and pay for your paper. You will get it few hours before your set deadline.
Are there Discounts?
All new clients are eligible for 20% off in their first Order. Our payment method is safe and secure.