MECH ENGINEERING DESIGN(LL)+ACCESS
10th Edition
ISBN: 9781260113952
Author: BUDYNAS
Publisher: MCG
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Chapter 2, Problem 14P
To determine
The Brinell hardness number 1040 hot-rolled steel after the heat treatment.
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An application requires ultimate tensile strength and yield strength ofa steel at 110 ksi and 91 ksi, respectively. Answer the following 4 questions:
Can SAE 1040 steel be selected for this application?
If “no” is the answer in Part I, the following Part II, III, and IV can beignored. If “yes” is the answer in Part I, which condition of SAE 1040 shouldbe selected?
Why is that steel with the condition in part II selected?
Is the selected steel brittle or ductile? and Why?
Draw a stress-strain curve for a low carbon steel and explain important points and regions in detail. What fracture behavior does this steel exhibit?
A material has a Yield Strength of 424.8 MPa and a UTS of 567.5 MPa. If a medium hard condition for this material is required, what would be the target Stress at which the material has to be cold work to meet this requirement?
Chapter 2 Solutions
MECH ENGINEERING DESIGN(LL)+ACCESS
Ch. 2 - Determine the tensile and yield strengths for the...Ch. 2 - Assume you were specifying an AISI 1060 steel for...Ch. 2 - Determine the yield strength-to-density ratios...Ch. 2 - Determine the stiffness-to-weight density ratios...Ch. 2 - Poissons ratio v is a material property and is the...Ch. 2 - A part made from annealed AISI 1018 steel...Ch. 2 - Prob. 10PCh. 2 - Repeat Prob. 2-9 for a part made from 2024-T4...Ch. 2 - A steel member has a Brinell of HB = 215. Estimate...Ch. 2 - A gray cast iron part has a Brinell hardness...
Ch. 2 - Prob. 14PCh. 2 - Brinell hardness tests were made on a random...Ch. 2 - Prob. 16PCh. 2 - Prob. 18PCh. 2 - Repeat Prob. 2-18 for the commonly used alloy...Ch. 2 - 2-21 to 2-23 A 1-in-diameter rod. 3 ft long, of...Ch. 2 - Prob. 22PCh. 2 - Prob. 23PCh. 2 - Consider a rod transmitting a tensile force. The...Ch. 2 - Repeat Prob. 2-26, except that the design...Ch. 2 - Prob. 28PCh. 2 - Prob. 29PCh. 2 - Prob. 30PCh. 2 - For an axially loaded rod. prove that = 1 for the...Ch. 2 - Prob. 32PCh. 2 - Prob. 33PCh. 2 - Prob. 34P
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- An application requires ultimate tensile strength and yield strength ofa steel at 110 ksi and 91 ksi, respectively. Answer the following 4 questions:4.1. Can SAE 1040 steel be selected for this application?4.2. If “no” is the answer in Part I, the following Part II, III, and IV can beignored. If “yes” is the answer in Part I, which condition of SAE 1040 shouldbe selected?4.3. Why is that steel with the condition in part II selected?4.4. Is the selected steel brittle or ductile? and Why?arrow_forwardHow does the carbon content in plane carbon steels affect the fracture toughness? Show this influence by A7 curves.arrow_forwardExplain a hardness test from Vockers, Brinnell or Rockwell. Then analyse the hardness figures of 0.9% Carbon steel and 0.15% Carbon steel and what effect these differences will have on the material properties.arrow_forward
- What type of behaviour is observed from these stress-strain curves?arrow_forwardDraw a Stress/Strain graph of a mild tensile steel and identify the limit of proportionality and the yield pointarrow_forwardFor a 10-mm-diameter Brinell hardness indenter, what will be the diameter of an indentation in mm to yield a hardness of 506 HB when a 500-kg load is used?arrow_forward
- A low-carbon steel alloy was loaded in tension until just after yielding took place. A few Luders bands were visible on the surface. The bar can either be reloaded (a) immediately, (b) after a brief and moderate temperature aging treatment, or (c) after several weeks without any exposure to elevated temperature. In each of the three cases, how is the yield strength of the reloaded bar likely to compare to that of the original test?arrow_forwardA sheet of aluminium alloy is reduced in thickness by 25% following a rolling operation. Tensile test specimens were cut from the sheet before and after rolling. Sketch the tensile test curves for both specimens, making reference to the differences if any, in Young’s modulus, the elastic limit and the level of ductilityarrow_forwardDraw the engineering stress-strain curve for low carbon steel and indicate the important points on the curve.arrow_forward
- Determine the yield strength sy and the ultimate strength su of the A36 steel either from Materials Science class book/notes, or by researching over the internet.arrow_forward(SI/USCS Units) In a Brinell hardness test, a 1500-kg load is pressed into a specimen using a 10-mm-diameter hardened steel ball. The resulting indentation has a diameter = 3.2 mm. (a) Determine the Brinell hardness number for the metal. (b) If the specimen is steel, estimate the tensile strength of the steel.arrow_forwardwhat is fracture stress,ductility and modulus of resilience for 304 Stainless Steel and 6061-T6 aluminum ?arrow_forward
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