Degarmo's Materials And Processes In Manufacturing
13th Edition
ISBN: 9781119492825
Author: Black, J. Temple, Kohser, Ronald A., Author.
Publisher: Wiley,
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 2, Problem 22RQ
What is uniform elongation, and when might it be preferred to the normal elongation at fracture?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
On what does a tensile fracture generally depend?
A metallic rod with an initial diameter of 10 mm and an initial length of 50 mm is subjected to the tensile test. After the fracture, the final length was measured as 51.8 mm, and the final diameter was measured as 9.5 mm.(a) Calculate modulus of elasticity, ultimate tensile strength, elongation at fracture in %,reduction of area in %, true stress at maximum load, true strain at maximum load, strain hardening exponent, strength coefficient.?
(one option or more can be true, please select from below)
Ductile failure is characterised by:
Little or no elongation to failure
Cavity coalescence
Dimples in the fracture surface
A significant reduction in cross sectional area
The component breaking into many pieces
Chapter 2 Solutions
Degarmo's Materials And Processes In Manufacturing
Ch. 2 - Prob. 1RQCh. 2 - Provide two definitions of the termÂ...Ch. 2 - Knowledge of what four aspects and their...Ch. 2 - Give an example of how we might take advantage of...Ch. 2 - What are some of the possible property...Ch. 2 - What are some properties commonly associated with...Ch. 2 - What are some of the more common nonmetallic...Ch. 2 - What are some of the important physical properties...Ch. 2 - Why should caution be exercised when applying the...Ch. 2 - What are the standard units used to report stress...
Ch. 2 - What are static properties?Ch. 2 - What is the most common static test to determine...Ch. 2 - What is engineering stress? Engineering strain?...Ch. 2 - What is Youngs modulus or stiffness, and why might...Ch. 2 - What are some of the tensile test properties that...Ch. 2 - Why is it important to specify the offset when...Ch. 2 - How is the offset yield strength determined?Ch. 2 - During the plastic deformation portion of a...Ch. 2 - What are the test conditions associated with...Ch. 2 - How would the tensile test curves differ for a...Ch. 2 - What are two tensile test properties that can be...Ch. 2 - What is uniform elongation, and when might it be...Ch. 2 - Is a brittle material a weak material? What does...Ch. 2 - What is the toughness of a material, and how might...Ch. 2 - What is the difference between true stress and...Ch. 2 - Explain how the plastic portion of a true...Ch. 2 - What is strain hardening or work hardening? How...Ch. 2 - Give examples of applications utilizing high...Ch. 2 - How might tensile test data be misleading for a...Ch. 2 - What type of tests can be used to determine the...Ch. 2 - What are some of the different material...Ch. 2 - What units could be applied to the Brinell...Ch. 2 - Although the Brinell hardness test is simple and...Ch. 2 - What are the similarities and differences between...Ch. 2 - Why are there different Rockwell hardness scales?Ch. 2 - How might hardness tests be used for quality...Ch. 2 - What are the attractive features of the Vickers...Ch. 2 - When might a microhardness test be preferred over...Ch. 2 - What is the attractive feature of the Knoop...Ch. 2 - Why might the various types of hardness tests fail...Ch. 2 - What is the relationship between penetration...Ch. 2 - Describe several types of dynamic loading.Ch. 2 - Why should the results of standardized dynamic...Ch. 2 - What are the two most common types of bending...Ch. 2 - What aspects or features can significantly alter...Ch. 2 - What is notch�sensitivity, and how might it be...Ch. 2 - Which type of dynamic condition accounts for...Ch. 2 - Are the stresses applied during a fatigue test...Ch. 2 - Is a fatigue S–N curve determined from a...Ch. 2 - What is the endurance limit? What occurs when...Ch. 2 - What features may significantly alter the fatigue...Ch. 2 - What relationship can be used to estimate the...Ch. 2 - Describe the growth of a fatigue crack.Ch. 2 - What material, design, or manufacturing features...Ch. 2 - How might the relative sizes of the fatigue region...Ch. 2 - What are fatigue striations, and why do they form?Ch. 2 - Why is it important for a designer or engineer to...Ch. 2 - What mechanical property changes are typically...Ch. 2 - Prob. 59RQCh. 2 - Prob. 60RQCh. 2 - How might the orientation of a piece of metal...Ch. 2 - How might we evaluate the long�term effect of...Ch. 2 - Prob. 63RQCh. 2 - What is a stress–rupture diagram, and how is one...Ch. 2 - Why are terms such as machinability, formability,...Ch. 2 - Prob. 66RQCh. 2 - What are some of the types of flaws or defects...Ch. 2 - What three principal quantities does fracture...Ch. 2 - What is a dormant flaw? A dynamic flaw? How do...Ch. 2 - How is fracture mechanics applied to fatigue...Ch. 2 - What are the three most common thermal properties...Ch. 2 - Describe an engineering application where the...Ch. 2 - Why is it important that property testing be...Ch. 2 - Why is it important to consider the orientation of...Ch. 2 - Select a product or component for which physical...Ch. 2 - Repeat Problem 1 for a product or component...Ch. 2 - Repeat Problem 1 for a product or component...Ch. 2 - A fuel tanker or railroad tanker car has been...Ch. 2 - One of the important considerations when selecting...Ch. 2 - Several of the property tests described in this...Ch. 2 - Steel and aluminum cans that have been submitted...Ch. 2 - Prob. 2CSCh. 2 - Prob. 3CSCh. 2 - Prob. 4CSCh. 2 - Prob. 5CSCh. 2 - Prob. 6CSCh. 2 - Mixed plastic consisting of recyclable...Ch. 2 - What do you suspect is the cause of these...Ch. 2 - Prob. bCSCh. 2 - Prob. cCS
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
- Is the presence of microvoid coalescence on a metal fracture surface inconsistent with macroscopic evidence of brittle fracture?arrow_forwardThe following observation were made during a tensile test on a mild steel specimen of 40 mm diameter and 200 mm long. Elongation with 40,000 N load (within the limit of proportionality) = 0.0304 mm. yield load = 165,000 N, Maximum load = 245,000 N. Length of the specimen at fracture 252 mm, Determine the yield stress, the modulus of elasticity, the ultimate stress and the percentage elongation.arrow_forwardDescribe the appearance of a fatigue fracture?arrow_forward
- Why does the brittle fracture occur in a torsion test?arrow_forwardA three-point bending test was performed on an aluminum oxide specimen having a circular cross section of radius = 5 mm, the specimen fractured at a load of 1400 N when the distance between the support points L = 100 mm. Another test is to be performed on a specimen of this same material, but one that has a square cross section of 12 mm on each edge. At what load would you expect this specimen to fracture if L = 50 mm? i need clear ans by hand and solve very very fast in 20 min and thank you DYBALARI |arrow_forwardDetermine the initial length of a tensile specimen that has a percentage of elongation as 43 % and the final length at fracture 67 mm.arrow_forward
- What are intergranular fracture and transgranular fracture? When do they usually happen?arrow_forwardA 50 mmm long circular rod of the AISI 1015 hot rolled steel with a diameter of 12.5 mm is loaded in tension to failure. From the test it is learnt that the yield strength = 315 MPa, the tensile strength = 420 MPa, the elongation at fracture = 39% and the reduction in area = 51%. It is also observed that 45% of the total elongation was uniform in nature prior to the onset of necking. a) What is the true strain at fracture? b) Calculate the true stress at the point of onset of plastic instability c) What is the the strength coefficient K for this steel?arrow_forwardA brass specimen of the circular cross-section is fractured at 147 kN force and the final length of the specimen at fracture is 46 mm. The fracture strength of the specimen is found to be 79 kN/mm?. The percentage of elongation of the specimen is 41 %. Determine the following (i) Diameter of the specimen, (1.5 Marks) ii) Initial length of the specimen,(1 Mark) ii) Stress under an elastic load of 13 kN, (1.5 Marks) iv) Young's Modulus if the elongation is 1.3 mm at 13 kN (1.5 Marks) and (v) Final diameter if the percentage of reduction in area is 29 %. (1.5 Marks) --- (Total Marks = 7) Young's Modulus of the Specimen (in N/mm²) Final Area of the Specimen at Fracture (in mm) Final Diameter of the Specimen after Fracture (in mm)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 Press
Mechanics of Materials (10th Edition)Mechanical EngineeringISBN:9780134319650Author:Russell C. HibbelerPublisher:PEARSON
Thermodynamics: An Engineering ApproachMechanical EngineeringISBN:9781259822674Author:Yunus A. Cengel Dr., Michael A. BolesPublisher:McGraw-Hill Education
Control Systems EngineeringMechanical EngineeringISBN:9781118170519Author:Norman S. NisePublisher:WILEY
Mechanics of Materials (MindTap Course List)Mechanical EngineeringISBN:9781337093347Author:Barry J. Goodno, James M. GerePublisher:Cengage Learning
Engineering 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
Material Properties 101; Author: Real Engineering;https://www.youtube.com/watch?v=BHZALtqAjeM;License: Standard YouTube License, CC-BY