State four failure modes of materials. Describe typical examples of each mode.
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State four failure modes of materials. Describe typical examples of each mode.
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- A rectangular block of aluminum 30 mm * 60 mm * 90 mm is placed in a pressure chamber and subjected to a pressure of 100 MPa. If the modulus of elasticity is 70 GPa and Poisson’s ratio is 0.333, what will be the decrease in the longest side of the block, assuming that the material remains within the linear elastic region? What will be the decrease in the volume of the block?A plastic cube with a 100 mm * 100 mm * 100 mm. is placed in a pressurechamber and subjected to a pressure of 100 MPa. If the modulus of elasticityis 7 GPa and Poisson’s ratio is 0.39, what will be the decrease in each side ofthe block, assuming that the material remains within the linear elastic region?What will be the decrease in the volume of the cube?STRENGTH OF MATERIALS. Please show the complete solutions. NO LONG EXPLANATION NEEDED! Rate will be given. Answer ASAP! Please answer all. MULTIPLE CHOICE: CHOOSE THE CORRECT ANSWER 1. Using MOHR CIRCLE from the given stresses on two perpendicular planes what is the normal stress on plane a-a? a. 75 MPa b. 150 MPa c. 125 MPa d. 100 MPa
- A plastic cube with a 100 mm X 100 mm X 100 mm. is placed in a pressurechamber and subjected to a pressure of 100 MPa. If the modulus of elasticityis 7 GPa and Poisson’s ratio is 0.39, what will be the decrease in each side ofthe block, assuming that the material remains within the linear elastic region?What will be the decrease in the volume of the cube?Consider a cylindrical metal 6 mm in diameter and 50 mm long ispulled in tension. It is known that yield strength and elastic (Young’s) Modulus of thematerial are 200 MPa and 100 GPa, respectively, and its Poisson’s Ratio is 0.3.(a) Determine whether the deformation is elastic or plastic when 6000 N is applied.(b) Calculate specimen elongation (∆l) and reduction in diameter (∆d) when 5000 N isapplied? What are the values ∆l and ∆d when the load is released?(c) If necking occurs at a load of 8850 N, determine the UTS of the metal.(d) Calculate the ductility in terms of % E.L. if the length of the specimen at fracturepoint is 56.0 mm.In order to evaluate the properties of a material, samples are taken and tested. What are the two most important factors that must be satisfied when the sample is collected? Show how these factors can be satisfied.
- In order to evaluate the properties of a material, samples are taken and tested.What are the two most important factors that must be satisfied when the sample is collected? Show how these factors can be satisfied.A liquid compressed in a cylinder has a volume of 1000 cm³at 1MN/m² and a volume of 995 cm² at 2 MN/m². What is its bulk modulus of elasticity?A part’s maximum Von Mises stress and materials are given below. Determine for each of these conditions whether the part is safe or not. Material: Steel, Von Mises Stress: 31000 psi, Static Loading, Ultimate Strength = 80000 psi Material: Polystyrene, Von Mises Stress: 42000 psi, Static Loading, Ultimate Strength = 7500 psi Material: Aluminum, Von Mises Stress: 62000 psi, Repeated Loading, Ultimate Strength = 30000 psi Please clearly show all calculations and reasoning in your computation.
- A plastic cube with a 4 in. * 4 in. * 4 in. is placed in a pressure chamber and subjected to a pressure of 15,000 psi. If the modulus of elasticity is 1000 ksi and Poisson’s ratio is 0.49, what will be the decrease in each side of the block,assuming that the material remains within the linear elastic region? What will be the decrease in the volume of the cube?A plastic cube with a 100mm * 100mm * 100mm is placed in a pressure chamber and subjected to a pressure of 100MPa. If the modulus of elasticity is 7GPa and Poisson’s ratio is 0.39, what will be the decrease in each side of the block, assuming that the material remains within the linear elastic region? What will be the decrease in the volume of the cube?Question 1: A 25mm diameter aluminum rod is loaded axially in tension with a load of 100kN. The rod is 4 m in length. Aluminum has a modulus of elasticity of 69GPa and a Poisson’s ratio of 0.35. 1) What is the decrease in diameter of the rod due to the applied load? 2) What is the new length of the rod?