How does the thermal expansion of a material influence its structural design?
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How does the thermal expansion of a material influence its structural design?
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- Explain the slipping of atoms and the effect on material deformation.What is the significance of stress concentration factor? What are the factors that influence movement of atoms through diffusion in solids?Can ceramic materials show superplastic behavior or are they always brittle? Explain your answer.
- Example: Cast iron contains 5% carbon, its structure at 1131°C consists of leadpurite and elemental cementite, find the percentage of these two components?Using the intermolecular forces, explain why the freezing and melting point decreases when adding salt to water!In general, materials will expand with increasing temperature. What is an important everyday exception to this rule? Group of answer choices concrete metal water glass
- The lower ends of the three bars shown in the figure are at the same level before the rigid homogeneous W = 100 kN block is attached. The properties of the bars are shown in the table. Steel Bronze Length, L Area, A Modulus of elasticity, E Coefficient of thermal expansion, a 1.00 m 500 mm? 1.60 m 900 mm 200 GPa 83 GPa 11.7x106 /°C 18x10 /°C Bronze Steel Steel W The temperature of the bars is then increased by 80°C. The block is assumed to remain horizontal after all deformations have occurred. Which of the following most nearly gives the stress developed in the steel bar?4. Discuss the effect of high temperature on material properties of structural steel.what is the cone of distribution, explain why stiffer materials are placed closer to the surface
