Shigley's Mechanical Engineering Design (McGraw-Hill Series in Mechanical Engineering)
10th Edition
ISBN: 9780073398204
Author: Richard G Budynas, Keith J Nisbett
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 2, Problem 13P
A gray cast iron part has a Brinell hardness number of HB = 200. Estimate the ultimate strength of the part in kpsi. Make a reasonable assessment of the likely grade of cast iron by comparing both hardness and strength to material options in Table A-24.
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Problems
1. A Rockwell hardness measurement is made on a ductile iron (80-55-06 as cast) and the
obtained Rockwell hardness R scale is 13 HRC. Predict the tensile and yield strengths of this
material.
2. A Brinell hardness measurement is made on a ductile iron (120-90-02, Oil-quenched) using a
10-mm-diameter sphere of tungsten carbide. A load of 3,000 kg produces a 3.52-mm-
diameter impression in the iron surface.
a. Calculate the BHN of this alloy. (The correct units for the Brinell equation are
kilograms for load and millimeters for diameters.)
b. Predict the tensile and yield strengths
3. Suppose that a ductile iron (100-70-03, air-quenched) has a tensile strength of 800 MPa.
What diameter impression would you expect the 3,000-kg load to produce with the 10-mm-
diameter ball?
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I need the answer as soon as possible
Determine the indentation diameter of a mild steel material subjected to a Brinell hardness test with a test
force of 8.1 kN using a hardened steel ball indentor of 10 mm. Take the Brinell Hardness Number as 926. Also,
determine the surface area of indentation.
(NOTE: Please Solve the problem in a paper and upload in the separate submission link provided
and also fill the answers without the unit in the box below)
i) Indentation Diameter (in mm) --
ii) Surface Area of Indentation (in mm?)
Chapter 2 Solutions
Shigley's Mechanical Engineering Design (McGraw-Hill Series in Mechanical Engineering)
Ch. 2 - Determine the tensile and yield strengths for the...Ch. 2 - Assume you were specifying an AISI 1060 steel for...Ch. 2 - Determine the yield strength-to-density ratios...Ch. 2 - Determine the stiffness-to-weight density ratios...Ch. 2 - Poissons ratio v is a material property and is the...Ch. 2 - A part made from annealed AISI 1018 steel...Ch. 2 - Prob. 10PCh. 2 - Repeat Prob. 2-9 for a part made from 2024-T4...Ch. 2 - A steel member has a Brinell of HB = 215. Estimate...Ch. 2 - A gray cast iron part has a Brinell hardness...
Ch. 2 - Prob. 14PCh. 2 - Brinell hardness tests were made on a random...Ch. 2 - Prob. 16PCh. 2 - Prob. 18PCh. 2 - Repeat Prob. 2-18 for the commonly used alloy...Ch. 2 - 2-21 to 2-23 A 1-in-diameter rod. 3 ft long, of...Ch. 2 - Prob. 22PCh. 2 - Prob. 23PCh. 2 - Consider a rod transmitting a tensile force. The...Ch. 2 - Repeat Prob. 2-26, except that the design...Ch. 2 - Prob. 28PCh. 2 - Prob. 29PCh. 2 - Prob. 30PCh. 2 - For an axially loaded rod. prove that = 1 for the...Ch. 2 - Prob. 32PCh. 2 - Prob. 33PCh. 2 - Prob. 34P
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- A mild steel material is subjected to a Brinell hardness test with an applied force of 7459 N using a hardened steel ball indentor of 11 mm and it is found that the Brinell Hardness Number as 954. Determine the surface area of indentation and indentation diameter. (NOTE: Please Solve the problem in a paper and upload in the separate submission link provided and also fill the answers without the unit in the box below) i) Surface Area of Indentation (in mm?) -- ( ii) Indentation Diameter (in mm)arrow_forward1. Please draw a typical tensile test curve for low carbon steels and mark the four stages and list their names (use critical points on the curve to help you identify the start and end points of the four stages). 2. Show the yield, ultimate tensile strength and fracture points, as well as yield and ultimate tensile strength on the curve. 3. Please draw the load and unload curve for a stress level causing the low carbon steels to experience elastic deformation only. 4. Please draw the load and unload curve for a stress level causing the low carbon steel to experience permerment deformation, and identify both elastic and plastic strain on the drawing after unloading.arrow_forwardDraw a Stress/Strain graph of a mild tensile steel and identify the limit of proportionality and the yield pointarrow_forward
- Parvin bhaiarrow_forwardFor each question, provide an explanation, identifying the correct choice ( it is marked in red) and explaining why it's the right answer, as well as why the other options are incorrect. Please do 1, 2.arrow_forwardAn electric car manufacturer is looking to utilize some stock AISI 8740, hot rolled steel bars that are around 2 inches in diameter for their conveyor system that is being set up to start producing their own batteries. The data sheet shows the the bars to have 132,000 psi tensile strength, 87,500 psi yield strength, and 16.7% elongation. A hardness of 262 Bhn allows it to be finish machined after heat treatment. They keep their workspace at 70°F. What is the working endurance strength, Se? 39,750 psi 28,562 psi 42,500 psi 33,400 psiarrow_forward
- I need the answer as soon as possiblearrow_forwardThe lower yield point for a certain plain carbon steelbar is found to be 135 MPa, while a second bar of the samecomposition yields at 260 MPa. Metallographic analysisshows that the average grain diameter is 50μm in the firstbar and 8μm in the second bar.a. Predict the grain diameter needed to cause a loweryield point of 205 MPa.b. If the steel could be fabricated to form a stablegrain structure of 500 nm grains, what strengthwould be predicted?c. Why might you expect the upper yield point to bemore alike in the first two bars than the lower yieldpoint?arrow_forward6.Explain with the aid of diagram three different hardness tests and mention the hardness measure of stainless steel and carbon steel. 7.Mention 3 relevant Standards for the hardness testing of metals.arrow_forward
- (c) An annealed AISI 4340 steel was determine to have a Brinell hardness of HB = 216. Estimate %3D the tensile strength of this steel in MPa.arrow_forwardOne problem which contains 3 parts, a , b and carrow_forwardA steel is to be selected from Appendix C-4a. Estimate Su and Sy from the given values of Brinell hardness for the selected steel.arrow_forward
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