Machine Elements in Mechanical Design (6th Edition) (What's New in Trades & Technology)
6th Edition
ISBN: 9780134441184
Author: Robert L. Mott, Edward M. Vavrek, Jyhwen Wang
Publisher: PEARSON
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Chapter 2, Problem 72P
To determine
The comparison of specific strength of SAE 1020 hot rolled steel to the Glass/epoxy, Aramid/epoxy and Boron/epoxy, Graphite/epoxy and Graphite/epoxy (ultra high modulus).
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Write a short representation of a high alloy steel with 0.15% C, 10% Cr, 8% Ni, 2% Mo and a small amount of V in its composition according to Turkish Standards.
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Question 1
You are working on a design team at a small orthopaedic firm. You have been asked to select a cobalt-
chrome-molybdenum (CoCr) material that will not experience plastic deformation under a specific mechanical test, as follows...
A tensile stress is applied along the long axis of a solid cylindrical rod that has a diameter of 10 mm. An applied load of some
magnitude F produces a 7x10-³ mm change in diameter (see figure below, original shape is blue, elongated shape is unshaded).
Q1A-B: Calculate the transverse strain in the x-direction (Ex) associated with the reduction in diameter. Calculate the axial strain in
the z-direction (₂) associated with the length increase.
Chapter 2 Solutions
Machine Elements in Mechanical Design (6th Edition) (What's New in Trades & Technology)
Ch. 2 - Define ultimate tensile strength.Ch. 2 - Define yield point.Ch. 2 - Define yield strength and tell how it is measured.Ch. 2 - What types of materials would have a yield point?Ch. 2 - What is the difference between proportional limit...Ch. 2 - Define Hooke’s law.Ch. 2 - What property of a material is a measure of its...Ch. 2 - What property of a material is a measure of its...Ch. 2 - If a material is reported to have a percent...Ch. 2 - Define Poisson’s ratio.
Ch. 2 - If a material has a tensile modulus of elasticity...Ch. 2 - A material is reported to have a Brinell hardness...Ch. 2 - A steel is reported to have a Brinell hardness of...Ch. 2 - For Problems 14 17, describe what is wrong with...Ch. 2 - For Problems 14 17, describe what is wrong with...Ch. 2 - For Problems 14 17, describe what is wrong with...Ch. 2 - For Problems 14 17, describe what is wrong with...Ch. 2 - Name two tests used to measure impact energy.Ch. 2 - Prob. 19PCh. 2 - Prob. 20PCh. 2 - Prob. 21PCh. 2 - What is the typical carbon content of a low-carbon...Ch. 2 - How much carbon does a bearing steel typically...Ch. 2 - What is the main difference between SAE 1213 steel...Ch. 2 - Name four materials that are commonly used for...Ch. 2 - Name four materials that are typically used for...Ch. 2 - Describe the properties desirable for the auger...Ch. 2 - Prob. 28PCh. 2 - Appendix 3If a shovel blade is made from SAE 1040...Ch. 2 - Describe the differences between through-hardening...Ch. 2 - Describe the process of induction hardening.Ch. 2 - Prob. 32PCh. 2 - Prob. 33PCh. 2 - Prob. 34PCh. 2 - Prob. 35PCh. 2 - Prob. 36PCh. 2 - Name three types of cast iron.Ch. 2 - Prob. 38PCh. 2 - Describe the process of making parts from powdered...Ch. 2 - Prob. 40PCh. 2 - Prob. 41PCh. 2 - Prob. 42PCh. 2 - Prob. 43PCh. 2 - Prob. 44PCh. 2 - Prob. 45PCh. 2 - Prob. 46PCh. 2 - Name three typical uses for titanium alloys.Ch. 2 - Prob. 48PCh. 2 - Prob. 49PCh. 2 - Prob. 50PCh. 2 - Describe the difference between thermosetting...Ch. 2 - Suggest a suitable plastic material for each of...Ch. 2 - Name eight factors over which the designer has...Ch. 2 - Define the term composite.Ch. 2 - Prob. 55PCh. 2 - Name four types of reinforcement fibers used for...Ch. 2 - Prob. 57PCh. 2 - Prob. 58PCh. 2 - Prob. 59PCh. 2 - For what applications are sheet-molding compounds...Ch. 2 - Prob. 61PCh. 2 - Prob. 62PCh. 2 - Prob. 63PCh. 2 - Prob. 64PCh. 2 - Prob. 65PCh. 2 - Prob. 66PCh. 2 - Prob. 67PCh. 2 - Prob. 68PCh. 2 - Discuss the advantages of composite materials...Ch. 2 - Prob. 70PCh. 2 - Prob. 71PCh. 2 - Prob. 72PCh. 2 - Prob. 73PCh. 2 - Describe the general construction of a composite...Ch. 2 - Prob. 75PCh. 2 - Prob. 76PCh. 2 - Prob. 77PCh. 2 - Prob. 78PCh. 2 - Prob. 79PCh. 2 - Prob. 80PCh. 2 - Prob. 81PCh. 2 - Prob. 82PCh. 2 - Prob. 83PCh. 2 - Problems 8290. For composites made with the given...Ch. 2 - Prob. 85PCh. 2 - Prob. 86PCh. 2 - Prob. 87PCh. 2 - Prob. 88PCh. 2 - Prob. 89PCh. 2 - Prob. 90PCh. 2 - Prob. 91PCh. 2 - Prob. 92PCh. 2 - Prob. 93PCh. 2 - Problems 94 96. For the given specification for a...Ch. 2 - Prob. 95PCh. 2 - Prob. 96PCh. 2 - Prob. 97PCh. 2 - Prob. 98PCh. 2 - Prob. 99PCh. 2 - Describe how CNTs are used in a CMNC and what...Ch. 2 - Prob. 1SPCh. 2 - Prob. 2SPCh. 2 - Prob. 3SPCh. 2 - Prob. 4SPCh. 2 - Prob. 5SPCh. 2 - Prob. 6SPCh. 2 - Name three U.S. organizations whose names are...Ch. 2 - Prob. 8SPCh. 2 - A U.S. designer specifies SAE 4140 steel for a...Ch. 2 - Prob. 10SPCh. 2 - Prob. 11SPCh. 2 - Prob. 12SPCh. 2 - Prob. 13SPCh. 2 - Prob. 14SPCh. 2 - Prob. 15SPCh. 2 - Prob. 16SPCh. 2 - Prob. 17SPCh. 2 - Prob. 18SPCh. 2 - Prob. 19SPCh. 2 - Prob. 20SPCh. 2 - Prob. 21SPCh. 2 - Prob. 22SPCh. 2 - Prob. 23SPCh. 2 - Prob. 24SPCh. 2 - Prob. 25SPCh. 2 - Prob. 26SPCh. 2 - Prob. 27SPCh. 2 - Prob. 28SPCh. 2 - Prob. 29SPCh. 2 - Prob. 30SPCh. 2 - Prob. 31SPCh. 2 - Prob. 32SPCh. 2 - Prob. 33SPCh. 2 - Prob. 34SPCh. 2 - List the six general classifications of materials...Ch. 2 - Prob. 36SPCh. 2 - Prob. 37SPCh. 2 - Prob. 38SPCh. 2 - Prob. 39SPCh. 2 - Prob. 40SP
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- As a material scientist, you have been requested by an engineer to list down a possiblecylindrical rod alloy to be used in your next project. Each cylindrical rod having adimension of 100 mm long and a diameter of 10.0 mm is to be deformed using a tensileload of 27,500 N. It must not experience either plastic deformation or a diameterreduction of more than 7.5 × 10−3 mm. Based on materials listed in Table 2, which arepossible candidates? Justify your choice(s).arrow_forwardQuestion 1 You are working on a design team at a small orthopaedic firm. You have been asked to select a cobalt- chrome-molybdenum (CoCr) material that will not experience plastic deformation under a specific mechanical test, as follows... A tensile stress is applied along the long axis of a solid cylindrical rod that has a diameter of 10 mm. An applied load of some magnitude F produces a 7x10³ mm change in diameter (see figure below, original shape is blue, elongated shape is unshaded). Q1F: How would the "new alloy" material (with different properties as shown below) behave, assuming it has the same initial diameter (10mm) and applied load (F) in the tensile test? That is, would it experience plastic deformation (yield) under the conditions of this problem?arrow_forwardWrite a short representation of 0.15% C, 10% Cr, 8% Ni, 2% Mo and a small amount of Flywheel high alloy steel according to Turkish Standards in its composition.arrow_forward
- A sample of an aluminum alloy has a tensile strength of 140 MPa,What will be the maximum force that can be withstood by a rod of thatalloy with a cross-sectional area of 1 cm2?arrow_forwardFor the aluminum alloy whose stress-strain behavior can be observed in the "Tensile Tests" module of Virtual Materials Science and Engineering (VMSE), determine the following: (a) the approximate yield strength (0.002 strain offset), MPa (b) the tensile strength, and i MPa (c) the approximate ductility, in percent elongation. i %ELarrow_forwardEstimate the linear relationship between the Ultimate Tensile Strength and HBN for the range of brass alloy shown in Figure 4b (ii).arrow_forward
- Define the term Modulus of Toughness?arrow_forwardUsing the tensile test simulation tool, a. generate the stress-strain curve for aluminum b. Indicate the following points in the stress-strain curve for aluminum and give the corresponding values: limit of proportionality elastic limit 0.2% offset yield stress (include the graph illustrating how this was determined) ultimate stress fracture stress c. Calculate modulus of elasticity. d. compare aluminum with nylon (include the related graph) and answer the following: Which has higher tensile strength? Provide the necessary values to support the answer. Which is stiffer? Support your answer with calculations.arrow_forwardExplain the phases shown in the attached image of a stress strain cureve for 0.15% carbon steelarrow_forward
- 1. Determine working stresses for the two alloys that have the stress–strain behaviors shown in Figures 6.22.arrow_forwardPlease annotate the attached to highlight the different phases of the stress/strain graph for 0.15% carbon steel. From the attached graph, calculate the following: 1-modulus of elasticity 2-tensile strength 3-the ductility in % of elongation 4- yield strength at a strain offset of 0.002arrow_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_forward
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