Manufacturing Engineering & Technology
7th Edition
ISBN: 9780133128741
Author: Serope Kalpakjian, Steven Schmid
Publisher: Prentice Hall
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Chapter 3, Problem 36SDP
To determine
For the materials listed in Table 3.1, determine the specific strength and specific stiffness. Describe your observations.
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Chapter 3 Solutions
Manufacturing Engineering & Technology
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- Explain why a maximum in stress occurs in the engineering stress—strain curve for a polycrystallinemetal deformed in tension. Why is there no maximum for the true stress— strain curve?arrow_forwardFrom list of the materials in the table above, please explain : 1. Which material has the greatest elongation? Explain your reason. 2. Which material has the highest strength? Explain your reason. 3. Which the most brittle material? Explain your reason. 4. Which the most rigid material? Explain your reason. 5. Which materials are most easily deforms plastically? Explain your reason. 6. If the material with cylinder form has a diameter of 10 mm and loaded with a mass of 2600 kg as shown in the picture above. -Which material you choose for cylinder to be able to withstand the load and will not have the permanent extension? -Which material is used, if the cylinder diameter will have a permanent reduction? -Which material is used, if the cylinder will fail?arrow_forwardList three engineering components / applications that, in your judgment, need high stiffness and low weight. What material choices would you consider for these applications? What is anisotropy? Explain with specific examples of materials and anisotropic properties.arrow_forward
- Name some properties of materials. How do you define these properties? Where do they come from?arrow_forwardA 3-mm-long gold alloy wire intended to electrically bond a computer chip to its package has an initial diameter of 30 µm. During testing, it is pulled axially with a load of 15 grams-force. If the wire diameter decreases uniformly to 29 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.arrow_forwardConsidering the stress-strain relationship, develop the following questions: (a) Sketch a schematic conventional stress-strain diagram, indicating the regions present in the diagram and the points that represent properties of both the elastic and plastic behavior and explain these properties. (b) What distinguishes the diagram in question a) from an actual stress-strain diagram? (c) What differentiates a brittle material and a ductile material, and how this will influence their respective stress-strain diagramsarrow_forward
- Explain the difference between Modulus of elasticity and Stiffness?arrow_forwardA 10-mm-diameter bar of 1040 carbon steel (see Table 6.1) is subjected to a tensile load of 50,000 N, taking it beyond its yield point. Calculate the elastic recovery that would occur upon removal of the tensile load.arrow_forwardEstimate the linear relationship between the Ultimate Tensile Strength and HBN for the range of brass alloy shown in Figure 4b (ii).arrow_forward
- Define “material” in engineering sense. Briefly explain the difference between alloys and composite materials. (b) : Draw and explain the stress-strain diagrams for brittle and ductile materials.arrow_forwardA 10-mm-diameter Brinell hardness indenter produced an indentation of 1.52 mm in diameter in a steel alloy when a load of 500 kg was used. (a) Compute the HB of this material. (b) What will be the diameter of an indentation to yield a hardness of 400 HB when a 500-kg load is used?arrow_forwardDraw a graph showing the elasticity, flexibility, and brittleness property in terms of stress and strain.arrow_forward
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