Study Guide with Lab Manual for Jeffus' Welding: Principles and Applications, 8th
8th Edition
ISBN: 9781305494701
Author: Larry Jeffus
Publisher: Cengage Learning
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Chapter 15, Problem 20R
What are the maximum acceptance criteria for bend test specimens?
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Required information
An eccentric force P is applied as shown to a steel bar of 25 × 90-mm cross section. The strains at A and B have been
measured and found to be
εΑ = +490 μ
εB=-70 μ
Know that E = 200 GPa.
25 mm
30 mm
90 mm
45 mm
B
Determine the distance d.
The distance dis
15 mm
mm.
handwritten-solutions, please!
handwritten-solutions, please!
Chapter 15 Solutions
Study Guide with Lab Manual for Jeffus' Welding: Principles and Applications, 8th
Ch. 15 - How are the sheet steel workmanship samples tested...Ch. 15 - What size are the fillet welds in Practice 15-2?Ch. 15 - How should the welds be cleaned on workmanship...Ch. 15 - What is the acceptable undercut on workmanship...Ch. 15 - In Practice 15-3, what size should the root face...Ch. 15 - How wide of an area should be cleaned on the plate...Ch. 15 - What is the root opening for the butt joints in...Ch. 15 - How is the 1 in. diameter hole cut in the...Ch. 15 - According to Figure 15-15, how are the test...Ch. 15 - According to Practice 15-6, after each weld pass...
Ch. 15 - What is the bevel angle for the test plates in...Ch. 15 - What type of groove is required for 2G butt welds?Ch. 15 - What weave pattern is used for the cover pass on...Ch. 15 - How can slag be cleaned off of FCAW-G and FCAW-S...Ch. 15 - Prob. 15RCh. 15 - What shielding gas mixture and flow rate are...Ch. 15 - What is the maximum interpass temperature for...Ch. 15 - What is the maximum allowable undercut for a...Ch. 15 - What shielding gas mixture and flow rate are...Ch. 15 - What are the maximum acceptance criteria for bend...Ch. 15 - According to Table 15-4, what is the range of...
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- ! Required information Assume that the couple shown acts in a vertical plane. Take M = 25 kip.in. r = 0.75 in. A B 4.8 in. M 1.2 in. [1.2 in. Determine the stress at point B. The stress at point B is ksi.arrow_forwardhandwritten-solutions, please!arrow_forwardhandwritten-solutions, please!arrow_forward
- No use chatgptarrow_forwardProblem 6 (Optional, extra 6 points) 150 mm 150 mm 120 mm 80 mm 60 mm PROBLEM 18.103 A 2.5 kg homogeneous disk of radius 80 mm rotates with an angular velocity ₁ with respect to arm ABC, which is welded to a shaft DCE rotating as shown at the constant rate w212 rad/s. Friction in the bearing at A causes ₁ to decrease at the rate of 15 rad/s². Determine the dynamic reactions at D and E at a time when ₁ has decreased to 50 rad/s. Answer: 5=-22.01 +26.8} N E=-21.2-5.20Ĵ Narrow_forwardProblem 1. Two uniform rods AB and CE, each of weight 3 lb and length 2 ft, are welded to each other at their midpoints. Knowing that this assembly has an angular velocity of constant magnitude c = 12 rad/s, determine: (1). the magnitude and direction of the angular momentum HD of the assembly about D. (2). the dynamic reactions (ignore mg) at the bearings at A and B. 9 in. 3 in. 03 9 in. 3 in. Answers: HD = 0.162 i +0.184 j slug-ft²/s HG = 2.21 k Ay =-1.1 lb; Az = 0; By = 1.1 lb; B₂ = 0.arrow_forward
- Problem 5 (Optional, extra 6 points) A 6-lb homogeneous disk of radius 3 in. spins as shown at the constant rate w₁ = 60 rad/s. The disk is supported by the fork-ended rod AB, which is welded to the vertical shaft CBD. The system is at rest when a couple Mo= (0.25ft-lb)j is applied to the shaft for 2 s and then removed. Determine the dynamic reactions at C and D before and after the couple has been removed at 2 s. 4 in. C B Mo 5 in 4 in. Note: 2 rotating around CD induced by Mo is NOT constant before Mo is removed. and ₂ (two unknowns) are related by the equation: ₂ =0+ w₂t 3 in. Partial Answer (after Mo has been removed): C-7.81+7.43k lb D -7.81 7.43 lbarrow_forwardProblem 4. A homogeneous disk with radius and mass m is mounted on an axle OG with length L and a negligible mass. The axle is pivoted at the fixed-point O, and the disk is constrained to roll on a horizontal surface. The disk rotates counterclockwise at the constant rate o₁ about the axle. (mg must be included into your calculation) (a). Calculate the linear velocity of G and indicate it on the figure. (b). Calculate ₂ (constant), which is the angular velocity of the axle OG around the vertical axis. (c). Calculate the linear acceleration ā of G and indicate it on the figure. (d). Determine the force (assumed vertical) exerted by the floor on the disk (e). Determine the reaction at the pivot O. 1 Answers: N = mg +mr(r/L)² @² |j mr w IIG C R L i+ 2L =arrow_forwardProblem 2. The homogeneous disk of weight W = 6 lb rotates at the constant rate co₁ = 16 rad/s with respect to arm ABC, which is welded to a shaft DCE rotating at the constant rate 2 = 8 rad/s. Assume the rod weight is negligible compared to the disk. Determine the dynamic reactions at D and E (ignore mg). Answers: D=-7.12ĵ+4.47k lb r-8 in. 9 in. B D E=-1.822+4.47 lb 9 in. E 12 in. 12 in. xarrow_forward
- Problem 3. Each of the right angle rods has a mass of 120 g and is welded to the shaft, which rotates at a steady speed of 3600 rpm. Ignore the weight of the shaft AB. Find the bearing dynamic reaction at A due to the dynamic imbalance of the shaft. (ignore mgs) 100 N A 100 100 100 100 100 (Dimensions in millimeters) Answer: A=-8521-426j N Barrow_forwardThermodynamics. Need help solving this. Step by step with unitsarrow_forwardQuiz/An eccentrically loaded bracket is welded to the support as shown in Figure below. The load is static. The weld size for weld w1 is h1 = 4mm, for w2 h2=6mm, and for w3 is h3 -6.5 mm. Determine the safety factor (S.f) for the welds. F=29 kN. Use an AWS Electrode type (E100xx). 163 mm 133 mm 140 mm w3 wiarrow_forward
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