Materials for Civil and Construction Engineers (4th Edition)
4th Edition
ISBN: 9780134320533
Author: Michael S. Mamlouk, John P. Zaniewski
Publisher: PEARSON
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Textbook Question
Chapter 3, Problem 3.48QP
How can the flaws in steel and welds be detected? Discuss the concept of a nondestructive test used for this purpose.
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- A bar made of high strength low-carbon steel of GRade 50 (yield strength gauge 50 ksi) , is 0.5 inchthick and 1.2 inch wide. The ultimate tensile strength of the steel is 70 ksi. Determine the load at whichthe bar starts to yield and also determine the load when the bar is likely to fracture. Taking the originalgauge length to as 5 inches and Young’s modulus of steel as 30 x 10^6 psi, estimate the new gauge lengthwhen the specimen is stressed at 2/3 of the yield stress.arrow_forwardCalculate the steel ratio that will produce a tension-controlled failure if compressivestrength f’c = 28 MPa and steel yield strength fy the answer is 0.02167 but i don't know how to solve it please helparrow_forwardhree steel bars with a diameter of 25 mm and carbon contents of 0.2, 0.5, and 0.8%, respectively. The specimens were subjected to tension until rupture. The load versus deformation results were as shown in Table P3.19. If the gauge length is 50 mm, determine the following: The tensile stresses and strains for each specimen at each load increment. Plot stresses versus strains for all specimens on one graph. The proportional limit for each specimen. The 0.2% offset yield strength for each specimen. The modulus of elasticity for each specimen. The strain at rupture for each specimen. Comment on the effect of increasing the carbon content on the following: Yield strength ii. Modulus of elasticity iii. Ductilityarrow_forward
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