Manufacturing Engineering & Technology
7th Edition
ISBN: 9780133128741
Author: Serope Kalpakjian, Steven Schmid
Publisher: Prentice Hall
expand_more
expand_more
format_list_bulleted
Textbook Question
Chapter 1, Problem 59SDP
Give examples in which anisotropy is scale dependent. For example, a wire rope can contain annealed wires that are isotropic on a microscopic scale, but the rope as a whole is anisotropic.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
3. A cylindrical specimen of a metal alloy 10 mm in diameter is stressed elastically in
tension. A force of 3370 Ibr produces a reduction in specimen diameter of 7 x 103 mm.
Compute Poisson's ratio for this material if its elastic modulus is 100 GPa.
4. A cylindrical specimen of a hypothetical metal alloy is stressed in compression. If its
original and final diameters are 20.000 and 20.025 mm, respectively, and its final length
is 74.96 mm, compute its original length if the deformation is totally elastic. The elastic
and shear moduli for this alloy are 105 GPa and 39.7 GPa, respectively.
Example 2. A cylindrical bar of 40 mm diameter and 1 m
length is subjected to a tensile test. Its longitudinal
strain is 6 times that of its lateral strain. If the
modulus of elasticity is 2 x 105 N/mm², then its
modulus of rigidity will be
2
6. A ceramic part for a jet engine has a yield strength of 648 MPa and a plane
strain fracture toughness of 8.49 MPam 4. To be sure that the part does not
fail, we plan to ensure that the maximum applied stress is only one-third of
the yield strength. We use a nondestructive test that will detect any internal
flaws greater than 0.27 mm long. Assuming that the Y constant is 1.4, does
our nondestructive test have the required sensitivity? Explain.
Chapter 1 Solutions
Manufacturing Engineering & Technology
Ch. 1 - What is the difference between an atom and a...Ch. 1 - Prob. 2RQCh. 1 - Prob. 3RQCh. 1 - Prob. 4RQCh. 1 - Define anisotropy. What is its significance?Ch. 1 - What effects does recrystallization have on the...Ch. 1 - What is strain hardening, and what effects does it...Ch. 1 - Explain what is meant by structure-sensitive and...Ch. 1 - Prob. 9RQCh. 1 - What influence does grain size have on the...
Ch. 1 - What is the relationship between the nucleation...Ch. 1 - What is a slip system, and what is its...Ch. 1 - Explain the difference between recovery and...Ch. 1 - What is hot shortness, and what is its...Ch. 1 - Explain the advantages and limitations of cold,...Ch. 1 - Describe what the orange peel effect is. Explain...Ch. 1 - Some metals, such as lead, do not become stronger...Ch. 1 - Describe the difference between preferred...Ch. 1 - Differentiate between stress relaxation and stress...Ch. 1 - What is twinning? How does it differ from slip?Ch. 1 - Prob. 21QLPCh. 1 - What is the significance of the fact that some...Ch. 1 - Is it possible for two pieces of the same metal to...Ch. 1 - Prob. 24QLPCh. 1 - A cold-worked piece of metal has been...Ch. 1 - What materials and structures can you think of...Ch. 1 - Two parts have been made of the same material, but...Ch. 1 - Do you think it might be important to know whether...Ch. 1 - Explain why the strength of a polycrystalline...Ch. 1 - Describe the technique you would use to reduce the...Ch. 1 - What is the significance of the fact that such...Ch. 1 - Prob. 32QLPCh. 1 - It has been noted that the more a metal has been...Ch. 1 - Is it possible to cold work a metal at...Ch. 1 - Comment on your observations regarding Fig. 1.14.Ch. 1 - Is it possible for a metal to be completely...Ch. 1 - Prob. 37QTPCh. 1 - Prob. 38QTPCh. 1 - Plot the data given in Table 1.1 in terms of...Ch. 1 - A strip of metal is reduced from 30 mm in...Ch. 1 - Prob. 41QTPCh. 1 - How many grains are there on the surface of the...Ch. 1 - Prob. 43QTPCh. 1 - Prob. 44QTPCh. 1 - Prob. 45QTPCh. 1 - A technician determines that the grain size of a...Ch. 1 - If the diameter of the aluminum atom is 0.28 nm,...Ch. 1 - The following data are obtained in tension tests...Ch. 1 - Prob. 50QTPCh. 1 - Prob. 51QTPCh. 1 - Prob. 52QTPCh. 1 - Same as Prob. 1.39, but ASTM no. versus...Ch. 1 - By stretching a thin strip of polished metal, as...Ch. 1 - Draw some analogies to mechanical fiberingfor...Ch. 1 - Draw some analogies to the phenomenon of hot...Ch. 1 - Take a deck of playing cards, place a rubber band...Ch. 1 - Give examples in which anisotropy is scale...Ch. 1 - The movement of an edge dislocation was described...
Knowledge Booster
Learn more about
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
- view Elastic Recovery After Plastic Deformation 5. A cylindrical specimen of a brass alloy 7.5 mm (0.30 in.) in diameter and 90.0 mm (3.54 in.) long is pulled in tension with a force of 6000 N (1350 lbf); the force is subsequently released. (a) Compute the final length of the specimen at this time. The tensile stress-strain behavior for this alloy is shown in Figure below. (b) Compute the final specimen length when the load is increased to 16,500 N (3700 lbf) and then released. 500 Stress (MPa) 400 300 200 100 Tensile strength 450 MPa (65,000 psi) MPa 200 100 0.10 I I 10³ psi 40 30 20 10 0.20 Strain 0.005 T Yield strength 250 MPa (36,000 psi) 0.30 1 70 60 50 40 30 20 10 0 0.40 Stress (10³ psi)arrow_forward3. A 30-cm long, 12-mm diameter carbon steel rod was subjected to 15,5 kN of tension. Calculate (a) the stress and strain in the rod, (b) the amount that it stretches, (c) its change in diameter, and (d) its stiffness (k=EA/L). (e) If the force was only 4.5 kN, by what amount would the rod have stretched?arrow_forwardFor safe and reliable operation, a certain polypropylene pipe must withstand an internal pressure of 0.5 MPa for a minimum of three years. If the pipe diameter is 100 mm, what is the minimum necessary wall thickness to ensure that the pipe will not experience a strain greater than 1.3%? To solve this problem, use the accompanying graph that reveals the room temperature creep response for polypropylene.arrow_forward
- A load of 140,000 N (31,500 lbf) is applied to a cylindrical specimen of a steel alloy (displaying the stress–strain behavior shown in Figure 6.22) that has a cross‐sectional diameter of 10 mm (0.40 in.). (a) Will the specimen experience elastic and/or plastic deformation? Why? (b) If the original specimen length is 500 mm (20 in.), how much will it increase in length when this load is applied?arrow_forwardA material has a linear elastic perfectly plastic stress-strain. A cylindrical specimen of that material having an initial length of 35 mm and a tadius of 7 mm is pulled until it elongates 0.8mm. a. Calculate the stain and the corresponding stress at that elongation value. b. Afterward, the specimen is released to zero stress level, how does the final length of the specimen compare with its original length? How much plastic deformation remains if it exists?arrow_forwardConsider a cylindrical metal 16 mm in diameter and 70 mm long is pulled in tension. It is known that the yield strength and elastic (Young's) Modulus of the material are 350 MPa and 200 GPa, respectively, and its Poisson's Ratio is 0.3. (a) Determine whether the deformation is elastic or plastic when 80 KN is applied. (b) Calculate specimen elongation (AI) and reduction in diameter (Ad) when 60 KN is applied? (c) What are the values Al and Ad when the load is released? (d) If necking occurs at a load of 98 KN, determine the UTS of the metal. (e) Calculate the ductility in terms of % E.L. if the length of the specimen at the fracture point is 76.0 mm.arrow_forward
- A sample of crosslinked polvisoprene rubber undergoes a constant strain rate axial tension experiment The initial sample measurements are 3.60 cm gauge length (axial direction); 0.b2 cm wide; 0.1/ cm thick:arrow_forward2. Consider a cylindrical nickel wire 0.08 in. in diameter and 1200 in. long. Calculate its elongation when a load of 300 N is applied. Assume that the deformation is totally elastic. 3. A cylindrical specimen of a metal alloy 10 mm in diameter is stressed elastically in tension. A force of 3370 Ibr produces a reduction in specimen diameter of 7 x 10* mm. Compute Poisson's ratio for this material if its elastic modulus is 100 GPa. 4. A cylindrical specimen of a hypothetical metal alloy is stressed in compression. If its original and final diameters are 20.000 and 20.025 mm, respectively, and its final length is 74.96 mm, compute its original length if the deformation is totally elastic. The elastic and shear moduli for this alloy are 105 GPa and 39.7 GPa, respectively.arrow_forwardThe question is related to calculation of strain and is attached as an image.arrow_forward
- (A A\ Find the toughness for a metal that experiences both elastic and plastic deformation. The modulus of elasticity is (15 x 10 psi), and that elastic deformation terminates at a strain of (0.007). For plastie deformation the values for K and n are (221,000 psi) and (0.15), respectively. Furthermore, plastic deformation occurs between strain values of (0.007) and (0.60). إضافة ملفarrow_forwardSuppose that the material in Q4 is fabricated in 25 mm (1 in) thick plate, estimate the largest valid K1c that can be measured on such a specimen.arrow_forward(a) Two different materials designated A, and B, are tested in tension using test specimens having diameters of 0.505 cm and gage lengths of 2.0 cm (Figure 1). At failure, the distances between the gauge length marks are 2.13 cm (sample A) and 2.48 cm (sample B). Also, at the failure cross-sections, the diameters are found to be 0.484 cm (sample A) and 0.398 cm (sample B), respectively. Classify each material as brittle or ductile using your judgement.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Elements Of ElectromagneticsMechanical EngineeringISBN:9780190698614Author:Sadiku, Matthew N. O.Publisher:Oxford University PressMechanics of Materials (10th Edition)Mechanical EngineeringISBN:9780134319650Author:Russell C. HibbelerPublisher:PEARSONThermodynamics: An Engineering ApproachMechanical EngineeringISBN:9781259822674Author:Yunus A. Cengel Dr., Michael A. BolesPublisher:McGraw-Hill Education
- Control Systems EngineeringMechanical EngineeringISBN:9781118170519Author:Norman S. NisePublisher:WILEYMechanics of Materials (MindTap Course List)Mechanical EngineeringISBN:9781337093347Author:Barry J. Goodno, James M. GerePublisher:Cengage LearningEngineering Mechanics: StaticsMechanical EngineeringISBN:9781118807330Author:James L. Meriam, L. G. Kraige, J. N. BoltonPublisher:WILEY
Elements Of Electromagnetics
Mechanical Engineering
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Oxford University Press
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:9780134319650
Author:Russell C. Hibbeler
Publisher:PEARSON
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:9781259822674
Author:Yunus A. Cengel Dr., Michael A. Boles
Publisher:McGraw-Hill Education
Control Systems Engineering
Mechanical Engineering
ISBN:9781118170519
Author:Norman S. Nise
Publisher:WILEY
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:9781337093347
Author:Barry J. Goodno, James M. Gere
Publisher:Cengage Learning
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:9781118807330
Author:James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:WILEY
Relationship Between Elastic Constants and Connecting Equations; Author: Engineers Academy;https://www.youtube.com/watch?v=whW5PnM7Pug;License: Standard Youtube License