Materials Science And Engineering Properties
1st Edition
ISBN: 9781111988609
Author: Charles Gilmore
Publisher: Cengage Learning
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Chapter 11, Problem 11.5P
To determine
The minimum detectable crack length capability of the NDT equipment.
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A Charpy V Notch test was conducted for a steel specimen. The average values of the test results at four different test temperatures were found to be 15 J at -45°C21 J at -18°C60 J at 5°C75 J at 40°CA bridge will be located in a region where specifications require a minimum of 35 J fracture toughness at 0°C for welded fracture-critical members. If the bridge contains a welded flange in a fracture-critical member, does the steel have adequate Charpy V notch fracture toughness to be used for this bridge?Show your supporting calculations.
Describe the type of fractures expected when pure aluminium and steel with 1.15%C specimens are loaded in tension to failure. Comment on the differences expected.
Chapter 11 Solutions
Materials Science And Engineering Properties
Ch. 11 - Prob. 1CQCh. 11 - Prob. 2CQCh. 11 - Prob. 3CQCh. 11 - Prob. 4CQCh. 11 - Prob. 5CQCh. 11 - Prob. 6CQCh. 11 - Prob. 7CQCh. 11 - Prob. 8CQCh. 11 - Prob. 9CQCh. 11 - Prob. 10CQ
Ch. 11 - Prob. 11CQCh. 11 - Prob. 12CQCh. 11 - Prob. 13CQCh. 11 - Prob. 14CQCh. 11 - Prob. 15CQCh. 11 - Prob. 16CQCh. 11 - Prob. 17CQCh. 11 - Prob. 18CQCh. 11 - Prob. 19CQCh. 11 - Prob. 20CQCh. 11 - Prob. 21CQCh. 11 - Prob. 22CQCh. 11 - Prob. 23CQCh. 11 - Prob. 24CQCh. 11 - Prob. 25CQCh. 11 - Prob. 26CQCh. 11 - Prob. 27CQCh. 11 - Prob. 28CQCh. 11 - Prob. 29CQCh. 11 - Prob. 30CQCh. 11 - Prob. 1ETSQCh. 11 - Prob. 2ETSQCh. 11 - Prob. 3ETSQCh. 11 - Prob. 4ETSQCh. 11 - Prob. 5ETSQCh. 11 - Prob. 6ETSQCh. 11 - Prob. 7ETSQCh. 11 - Prob. 8ETSQCh. 11 - Prob. 9ETSQCh. 11 - Prob. 10ETSQCh. 11 - Prob. 11.1PCh. 11 - Prob. 11.2PCh. 11 - Prob. 11.3PCh. 11 - Prob. 11.4PCh. 11 - Prob. 11.5PCh. 11 - Prob. 11.6PCh. 11 - Prob. 11.7PCh. 11 - Prob. 11.8PCh. 11 - Prob. 11.9PCh. 11 - Prob. 11.10PCh. 11 - Prob. 11.11PCh. 11 - Prob. 11.12PCh. 11 - Prob. 11.13PCh. 11 - Prob. 11.14P
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- A Charpy V Notch test was conducted for a steel specimen. The average val-ues of the test results at four different test temperatures were found to be 15 J at -45°C21 J at -18°C60 J at 5°C75 J at 40°CA bridge will be located in a region where specifications require a minimumof 35 J fracture toughness at 0°C for welded fracture-critical members. If thebridge contains a welded flange in a fracture-critical member, does the steelhave adequate Charpy V notch fracture toughness to be used for this bridge?Show your supporting calculations.arrow_forward3arrow_forwardQuestion 1 a) A standard mild steel tensile test specimen has a diameter of 16mm and a gauge length of 80mm. the specimen was tested to destruction and the following results obtained, Load at yield point = 87KN Extension at yield point = 173 x 10“ m Ultimate load = 124KN %3D Total extension at fracture = 24mm Diameter of specimen at fracture = 9.8mm Cross-sectional area at fracture = 75.4mm? Cross-sectional area "A" = 200mm² Compute the followings: Modulus of elasticity of steel. Ultimate tensile stress. i. ii. iii. Yield stress iv. Percentage elongation.arrow_forward
- helparrow_forward160 Upper scale A tensile test specimen of stainless steel alloy having a diameter of 0.550 in. and a gage length of 2.5 in. was tested to fracture. Stress and strain data obtained during 120 80 Lower scale the test are shown in the Figure Determine: (a) the modulus of elasticity. (b) the proportional limit. (c) the ultimate strength. (d) the yield strength (0.20% offset). (e) the fracture stress. 40 0.020 0.002 0.100 0.120 0.010 0.012 0.0 0.040 0.004 0.060 0.006 0.080 0.008 0.0 Strain (in./in.) Stress (ksi)arrow_forward2. Please estimate the number of cycles to failure of a steel specimen under tensile fatigue loading with the following parameters. The R ratio is 3, mean stress 200 MPa, yield strength 450 MPa, ultimate tensile strength 560 MPa, Young’s modulus 200 GPa, KIC = 140 MPa . Assume the initial crack length is 0.1 mm.arrow_forward
- A very large, steel plate of yield stress 200 MPa and Poisson's ratio 0.3 has a crack at the centre of length 34 mm, orientated along the x-axis. If the plate is subjected to far field tensile loading of magnitude 177 MPa and is assumed to be in a state of plane stress, determine the extent of the plastic region at the crack tip, along the x-axis. You may assume Poisson's ratio is (1/3). Express your answer as an integer value of mm.arrow_forwardMs-handwriteen solution requiredarrow_forwardDWrite at least three critical conditions that should be combined to provide brittle fracture."arrow_forward
- M9arrow_forwardA steel specimen is tested in tension. The specimen is 1 in. wide by 0.5 in. thick in the test region. By monitoring the load dial of the testing machine, it was found that the specimen yielded at a load of 36 kips and fractured at 48 kips.a. Determine the tensile stress at yield and at fracture.b. If the original gauge length was 4 in., estimate the gauge length when the specimen is stressed to 1/2 the yield stress.arrow_forwardNoncontact deformation measuring technique is preferred in many situations.arrow_forward
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