Discuss how to determine the basic material properties of a material sample based on its stress-strain diagram.
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(b) Discuss how to determine the basic material properties of a material sample based on its stress-strain diagram.
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- difference between 1st principal stress, 2nd principal stress, and 3rd principal stress in mechaninical engineeringA material has the stress–strain behavior shown in Figure P1.2. What is the material strength at rupture? What is the toughness of this material?Material A has a Poisson’s ratio of 0.35 and Material B has a Poisson’s ratio of 0.25. Assume that cylindrical specimens having the same dimensions were prepared from both materials and they were tested under uniaxial tension (below the yield stress of both materials). At the same longitudinal strain, the final diameter of the Material A becomes less than the final diameter of the Material B. Is it true or false?
- Explain the behavior of a ductile material when it is subjected to uniaxial tension test. Explain also how to determine its material properties based on the resulting engineering stress-strain diagram of the material from the said test.Compute the stress distribution of the beam shown in the figure at mid-section. Cross-sectional dimensions of the beam is 14in X 40in. If the tensile capacity is 1ksi, comment on stability of the beam.The rigid, horizontal slab is attached to two identical copper rods. There is a gap ∆ = 0.18 mm between the middle bar, which is made of aluminum, and the slab. Neglecting the mass of the slab, calculate the stress in each rod when the temperature in the assembly is increased by 60 oC. Use the following data:
- Modulus of resilience is the ratio of ? a. minimum strain energy and unit volume b. maximum stress energy and unit volume c. proof resilience and unit volume d. resilience and unit areaOnagraph, show the stress–strain relationship under loading and unloading for the following two materials: a. nonlinear elastic material b. elastoplastic material with strain hardeningA material has a stress–strain relationship that can be approximated by the equation where the stress is in psi. Find the secant modulus and the tangent modulus for the stress level of 50,000 psi.
- Following experimental data are obtained from tensile test of a rectangular test specimen with original thickness of 2,5 mm, gauge width of 24 mm and gauge length of 101 mm: Load (N) Elongation (mm) 0 0 24372 0,183 23008 0,315 28357 5,777 35517 12,315 27555 17,978 23750 23,865 Based on the information above; draw stress-strain diagram of the material and answer the following questions. - Calculate the yield strength (in MPa) of the material. - Calculate the percent elongation of the specimen at yield point. (Use at least five decimal units) - Calculate the stiffness (in MPa) of the specimen material. - Calculate the ultimate strength (in MPa) of the material. - Calculate the percent elongation of the specimen at point of ultimate strength. - Calculate the fracture strength (in MPa) of the material. - Calculate the percent elongation of the specimen at fracture point. - Determine the modulus of resilience (in N.mm/mm3) of the…Briefly describe a standard test method which can be used to establish properties of Yield stress level Young's modulus ultimate tensile stress Also provide a sketch of the apparatus.Following experimental data are obtained from tensile test of a rectangular test specimen with original thickness of 2,5 mm, gauge width of 24 mm and gauge length of 101 mm: Load (N) Elongation (mm) 0 0 24372 0,183 23008 0,315 28357 5,777 35517 12,315 27555 17,978 23750 23,865 Based on the information above; draw stress-strain diagram of the material and answer the following questions. 1-)-Determine the modulus of resilience (in N.mm/mm3) of the material. (Use at least five decimal units) 2-)- Determine the elastic energy absorption capacity (in N.mm) of that specimen. 3-)Determine the plastic energy absorption capacity (in N.mm) of that specimen.