A steel rod (initial diameter: 3.2 mm, initial length: 42 mm) is extended by a uniaxial tensile load of 4800 N in 120 seconds. At this load, the length of the rod is measured as 49,2 mm. Calculate the followings: (a) Stress and strain occurred on the rod at this load. (b) Initial strain rate. (c) Diameter of the rod at this load.

A steel rod (initial diameter: 3.2 mm, initial length: 42 mm) is extended by a uniaxial tensile load of 4800 N in 120 seconds. At this load, the length of the rod is measured as 49,2 mm. Calculate the followings: (a) Stress and strain occurred on the rod at this load. (b) Initial strain rate. (c) Diameter of the rod at this load.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

A 3-mm-long gold alloy wire intended to electricallybond a computer chip to its package has an initial diameter of30 μm. During testing, it is pulled axially with a load of 15grams-force. If the wire diameter decreases uniformly to29 μm, compute the following:a. The final length of the wire.b. The true stress and true strain at this load.c. The engineering stress and strain at this load.
1. A steel rod is subjected to tension force (diameter: 30 mm) is made of annealed AISI 1015 steel. Yield strength of the annealed AISI 1015 steel is 386 MPa. (a) If the test specimen yielded when it was subjected to tensile force P, calculate P. yielding if the applied tensile force P is 1,200 kN. (b) Calculate safety factor against 30mm
The data below are for a thin steel wire suitable for use as a guitar string. Ultimate tensile stress: 1.8 x 109 Pa Young Modulus: 2.2 x 1011 Pa Cross-sectional area: 2.0 x 10-7 m2 In a tensile test, a specimen of the wire, of original length 1.5 m, is stretched until it breaks. Assuming the wire obeys Hooke’s law throughout, calculate the extension of the specimen immediately before breaking.
A steel specimen 12mm diameter has gauge length 50mm. the steel specimen had tested via tensile test under maximum load 66KN with elongation 7.5mm, and the yield load of this specimen is 15KN with elongation 2.4mm. Calculate: 1- The engineering ultimate stress (ultimate tensile strength), and engineering strain at this point. 2- The engineering stress and strain at yield point. 3- The modulus of elasticity, and the modulus of resilience. 4- The final or fracture strain of a steel specimen, if you know that the final length of specimen after testing is 58.5mm. 5- The true stress and strain for ultimate point. any four point sir
A rod specimen of ductile cast iron was tested in a torsion-testing machine. The rod diameter was 16 mm, and the rod length was 360 mm. When the applied torque reached 254.8 N-m, a shear strain of 1780 microradians was measured in the specimen. What was the angle of twist in the specimen? Part 1 Calculate the shear stress in the specimen. Correct Answer: T= 316.97 eTextbook and Media Part 2 Use Hooke's Law to calculate the shear modulus of the specimen. answer: G= i MPa MPa Attempts: 1 of 5 used
A rod specimen of ductile cast iron was tested in a torsion-testing machine. The rod diameter was 16 mm, and the rod length was 360 mm. When the applied torque reached 254.8 N-m, a shear strain of 1780 microradians was measured in the specimen. What was the angle of twist in the specimen? Part 1 Calculate the shear stress in the specimen. Correct Answer: T= 316.97 eTextbook and Media Part 2 Correct Use Hooke's Law to calculate the shear modulus of the specimen. answer: G= 178073.034 Part 3 eTextbook and Media Incorrect MPa Answer: Calculate the angle of twist in the specimen. D=0.8006 MPa O Attempts: 1 of 5 used Attempts: 1 of 5 used
The data shown in the table below were obtained from a tensile test of high-strength steel. The test specimen had a diameter of 13mm and a gage length of 50mm. At fracture, the elongation between the gage marks was 3.0mm and the minimum diameter was 10.7mm. Plot the conventional stress-strain curve for the steel and determine the propotional limit, modulus of elasticity (i.e the slope of the initial part of the stress-strain curve), yield stress at 0.1% offset, ultimate stress, percent elongation in 50mm, and percent reduction area. TENSILE-TEST DATA Load(kN) Elongation(mm) 5 0.005 10 0.015 30 0.048 50 0.084 60 0.099 64.5 0.109 67.0 0.119 68.0 0.137 69.0 0.160 70.0 0.229 72.0 0.259 76.0 0.330 84.0 0.584 92.0 0.853 100.0 1.288 112.0 2.814 113.0 Fracture
*O llAsiacell Strength of m. -> 02: A steel specimen 12mm diameter has gauge length 50mm. the steel specimen had tested via tensile test under maximum load 66KN with elongation 7.5mm, and the yield load of this specimen is 15KN with elongation 2.4mm. Calculate: 1- The engineering ultimate stress (ultimate tensile strength), and engineering strain at this point. 2- The engineering stress and strain at yield point. 3- The modulus of elasticity, and the modulus of resilience. 4- The final or fracture strain of a steel specimen, if you know that the final length of specimen after testing is 58.5mm. 5- The true stress and strain for ultimate point. Q3: The yoke-and-rod connection is subjected to a tensile force of 15 kN. Determine the average normal stress in each rod and the average shear stress in the pin A between the members. Finally, find the shear strain in pin A. Take G teef 75GPA 40 mm 15 kN, 30 mm 30 mn 15 kN 04: In figure as shown below, assume that a 35mm diameter rivet joint the…
For some metal alloy, a true stress 345 MPa (50040 psi) produces a plastic true strain of 0.02. How much will a specimen of this material elongate when a true stress of 418 MPa (60630 psi) is applied if the original length is 500 mm (19.69in) ? Assume a value of 0.22 for the strain- hardening exponent, n
1. A steel rod is subjected to tension force (diameter: 30 mm) is made of steel. Yield strength of the steel is 290 MPa. (a) If the test specimen yielded when it was subjected to tensile force P, calculate P. (b) Calculate safety factor against yielding if the applied tensile force P is 300 kN. P 30mm
During stress-strain test, the unit deformation at a stress of 35 MPa was observed to be 167 x 10^-6 m/m and at a stress of 140 MPa it was 667 x 10^-6. If the proportional limit was 200 MPa, what is the modulus of Elasticity (GPa)? What is the strain corresponding to a stress of 80 MPa?
tensile test is performed to determine the parameters strength constant C and strainrate sensitivity exponent m for a certain metal. The temperature at which the test is performed = 500°C. At a strain rate = 10/s, the stress is measured at 140 MPa; and at a strain rate = 150/s, the stress = 280 MPa. (a) Determine C and m. (b) If the temperature were 600°C, what changes would you expect in the values of C and m?