Take longitudinal strain 0.02
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Solved in 2 steps
- (a) Solve part (a) of the preceding problem if the pressure is 8.5 psi, the diameter is 10 in., the wall thickness is 0,05 in., the modulus of elasticity is 200 psi, and Poisson's ratio is 0.48. (b) If the strain must be limited to 1.01, find the maximum acceptable inflation pressureThe rails of a railroad track are welded together at their ends (to form continuous rails and thus eliminate the clacking sound of the wheels) when the temperature is 60°F. What compressive stress ?? =6.5×10-6 /? is produced in the rails when they are heated by the sun to 120"F if the coefficient of thermal expansion a = the modulus of elasticity E = 30 × 106 psi?A brass plate with a modulus of elastici ty E = 16 X 106 psi and Poisson’s ratio a = 0.34 is loaded in biaxial stress by normal stresses r and cry. (sec figure). A strain gage is bonded to the plate at an angle 4 = 350 If the stress o is 10,700 psi and the strain means used by the gageise = 390 X 106.whatisthcmax- imum in-plane shear stress (Tr, ),. and shear strain (>‘ ).? What is the maximum shear strain (y ) in the x-: plane? What is the maximum shear strain (y ).. in the y-r plane?
- If the longitudinal strain is 0.003 and the poisson's ratio is 0.3, calculate the transverse strain.If the engineering strain in a tensile bar is 0.0025 and Poisson’s ratio is 0.33, find the original length and the original diameter if the length and diameter under load are 2.333 ft. and 1.005 in. respectively.Poisson's ratio for a material is 0.3. The material is stretched axially, and its transverse strain is -0.00010. Calculate its axial strain in units of microstrain.
- When a tensile load of 20kN is applied to a rod of length 5 cm changes its length by 1 mm. The strain on the rod is ?A metal bar 5.0 m long extends by 0.05 mm when a tensile load is applied to it. The percentage strain is:In uniaxial loading the poisson's ratio is 0.30 and the strain in the x- direction is 250 x 10^-6 . What is the strain in the z- direction?
- A plastic bar of 53 mm is to be twisted by torques T until the angle of rotation between the ends of the bars is 9 degree. If the allowable shear strain in the plastic is 0.018 radian, what is the minimum permissible length of the bar in mm?Calculate the strain in a metal with a Young’s modulus of 210 GPa and subjected to 440 MPa.A specimen of copper having a rectangular cross section of 15.2 x 19.1 mm is pulled with a force of 44.5 kN, producing only elastic deformation. Calculate the strain. E is 110 Gpa.