- The ultimate tensile strength of metallic sample is equal to which of the following values? If that the initial and final radius are (0.256in.) and (0.157in.) respectively. The failure occurs at maximum weight of (84 10'g? What is behavior type of sample? 620 10 (N/m'), as brittle behavior 559 10 (N/m'), as brittle behavior 620 10 (N/m), as ductile behavior 560MPA, as brittle behavior

- The ultimate tensile strength of metallic sample is equal to which of the following values? If that the initial and final radius are (0.256in.) and (0.157in.) respectively. The failure occurs at maximum weight of (84 10'g? What is behavior type of sample? 620 10 (N/m'), as brittle behavior 559 10 (N/m'), as brittle behavior 620 10 (N/m), as ductile behavior 560MPA, as brittle behavior

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

What is the safety factor against yielding of a 4140 steel shaft, 2.1 in OD, 0.49 inch wall thickness, quenched and tempered at 1000°F, subject to a torsion of 10876 in·lbf and a compressive load of 14292 lbf? (Use Shigley for material properties, and the most accurate failure theory appropriate to the material.)
Three identical fatigue specimen ( denoted A ,B and C ) are fabricated from none ferrous alloy .Each one is subjected to one of the maximum- minimum stress cycles listed in the following table, the frequency is the same for all the three tests.. Which of the following samples will have the longest life and the shortest life Specimen Stress,max ( MPa) Stress , min (MPa) A +450 -150 B +300 -300 C +500 -200
ASTM Standard E23 defines standard test methods for notched bar impact testing of metallic materials. The Charpy V-notch (CVN) technique measures impact energy and is often used to determine whether or not a material experiences a ductile-to-brittle transition with decreasing temperature. Ten measurements of impact energy (J) on specimens of A238 steel cut at 60ºC are as follows: 64.1, 64.7, 64.5, 64.6, 64.5, 64.3, 64.6, 64.8, 64.2, and 64.3. Assume that impact energy is normally distributed with σ = 1J. Find a 95% Confidence interval for μ, the mean impact energy.
Which of the following could not be obtained directly from the stress-strain diagram from a tensile failure test? Select all which apply. Modulus of Elasticity Tensile Yield Strenth Ultimate Strength Coefficient of Thermal Expansion
The yield strength of a high-strength steel is 1 GN/m2 and KIC is 100 MPa √m. The crack length that can cause sudden failure at half of its yield strength is ____mm. (Round off to two decimal places)
Which of the 2 is the nore desirable behaviour of a structure? A. Ductile B. Brittle
An machine part is being tested with a load of 63,000 lb. The allowable tensile stress is10,000 psi, with factor of safety of 3. If the original length of steel specimen is 43 inches withelongation not exceeding 0.005 in, what diameter of the safe specimen?
A tensile test specimen has a starting gage length 50 mm and a cross-sectional area 200 mm2. During the test, the specimen yields under a load of 30,000 N (this is the 0.2% offset) at a gage length of 52 mm.The maximum load of 63,000 N is reached at a gage length of 57 mm just before necking begins. Final fracture occurs at a gage length of 63.5 mm. Determine (a) yield strength, (b) modulus of elasticity, (c) tensile strength, (d) engineering strain at maximum load, and (e) percent elongation.
A 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?
An engine part is being tested with a load of 65 000 lb. The allowable tensile stress is 10000 psi ,modulus of elasticity 40×106 psi . If the original length of specimen is 40 inches with elongation not exceeding 0.0155 inches, what diameter of the specimen is rejected.
Given your understanding of what initiates and controls failure in materials, which of the following will increase the failure strength or lifetime of a test piece or component and why? a. Increasing the grain size so there are less grain boundaries to initiate failure b. Decreasing the temperature below the brittle-ductile transition temperature, to make it harder c. Decreasing the difference between the maximum and minimum stress values, as this effects the stress concentration factor d. Polishing to reduce surface defects e. Increasing its volume, to give a larger cross sectional area
The following engineering tensile properties are given for the 1080 steel:-Yield strength (MPa): 585-Tensile strength (MPa): 965-Elongation to fracture for specimen of 5cm gage length (%): 12A 5cm long circular rod of 1080 steel specimen with a diameter of 1.28cm isloaded to failure in tension. a) What was the maximum load needed to break the specimen?(20 points)b) If necking initiated at 80% of the total elongation, prior to this point thespecimen deformation is uniform, compute the true stress at the point ofnecking initiation.