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- 3. Consider iron and its elastic constants (Find them from the net or some book). An iron specimen consists of grains with texturing distribution of [110] (20%), [112] (20%), [111] (30%) and [103] (30%) (all percentages by volume) along the loading direction is serving under a static force of 10,000 N. The metal rod has a 20 mm diameter perpendicular to the loading direction. a) Find the strain response of the specimen.Value of P1=9 kNP2=105 kNP3=89 kNd=159 mm Strength of MaterialsThe thin square plate shown is uniformly deformed such that €, = +1445 pE, E, = -674 uE, and y,y = +1260 urad. Determine the normal strain e, in the plate. 60 mm O -157 µE O -309 µE O -198 HE O -244 µE O -256 HE
- Calculate Young's modulus for an iron crystal when tension is applied along [2 -2 1] direction. S11=7.6 (TPa)-', S12 = - 2.8 (TPa)-', S44 = 8.6 (TPa) -!P=3MPa K=1MPa Strength of material question need help with solutionThe thin square plate shown is uniformly deformed such that E - +1425 µE, E, - -668 uE, and ygy - +1125 prad. Determine the normal strain &, in the plate. 60 mm O -255 uE O -233 uE O -202 uE Ο -220 με O -184 uE
- 1.17 Figure P1.17 shows the stress-strain relations of metals A and B during tension tests until fracture. Determine the following for the two metals (show all calcu- lations and units): a. Proportional limit b. Yield stress at an offset strain of 0.002 in./in. 150 - - Metal A 100 • Metal B 50 0.00 0.02 0.04 0.06 0.08 0.10 0.12 0.14 Strain, in./in. FIGURE P1.17 c. Ultimate strength d. Modulus of resilience e. Toughness f. Which metal is more ductile? Why? Stress, ksiQ.1 The yield stresses (oy) have been measured using steel and aluminum specimens of various grain sizes, as follows: Material D (µm) σΥ (MPa) Steel 60.5 160 136 128 Aluminum 11.1 235 100 223 (a) Determine the coefficients o and kỵ in the Hall- Petch for these two materials. (b) Determine the yield stress in each material for a grain size of d=26 um.Relative hardness is measured on Moh's scale. True False
- o (MPa) 750 B -F 600 A parallel Ty = 450 300 150 D € (mm/mm) 0.01 | 0.02) 0.03 0.04 Ey = 0.006 - EOC- O7 0.023 The stress-strain diagram for an aluminum alloy that is used for making aircraft parts is shown in Fig. 3-19. If a specimen of this material is stressed to 600 MPa, determine the permanent strain that remains in the specimen when the load is released. Also, find the modulus of resilience both before and after the load application.1. An element whose material has Sy = 280 MPa, Sut = 330 MPa, and Suc = 460 MPa is loaded as shown. Determine the safety factors of the following elements based on these criteria. (a) MSST (b) MDET (c) MNST = -40 MPa T Txy = 40 MPa σx = 30 MPaThe block shown is made of a magnesium alloy for which E=X2GPaand ϑ=0.35. Knowing that σx= X1 MPa, determine (a) the magnitude of σyfor which the change in the height of the block will be zero, (b) the corresponding change in the area of the face ABCD, (c) the corresponding change in the volume of the block.