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Mechanics of material Tutorial with Solution
Homework 2.1 A plastic wire is pulled by a tensile force of 4 N, and its length increases by 1%. If the plastic has elastic modulus of 4 GPa. Assuming deformation is well within elastic limit, please calculate (a) average normal stress in the wire and (b) the diameter of wire. Homework 2.2 The 4 mm diameter metal wire EF has modulus E = 200 GPa. If the maximum stress should not be higher than 250 MPa, and the elongation of the wire should NOT be longer than 5 mm. Please calculate the maximum lo...
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Homework 2.1 A plastic wire is pulled by a tensile force of 4 N, and its length increases by 1%. If the plastic has elastic modulus of 4 GPa. Assuming deformation is well within elastic limit, please calculate (a) average normal stress in the wire and (b) the diameter of wire. Homework 2.2 The 4 mm diameter metal wire EF has modulus E = 200 GPa. If the maximum stress should not be higher than 250 MPa, and the elongation of the wire should NOT be longer than 5 mm. Please calculate the maximum lo...