The strain energy due to volumetric strain (a) Is directly proportional to the volume (b) Is directly proportional to the square of exerted pressure (c) Is inversely proportional to Bulk modulus (d) All options are correct
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- Compare the engineering and true secant elastic moduli for the natural rubber in Example Problem 6.2 at an engineering strain of 6.0. Assume that the deformation is all elastic.The lateral strain is a. None of the options b. The ratio of length of body to the tensile force applied on it c. The strain at right angles to the direction of applied load d. The ratio of deformation in area to the original area e. The ratio of axial deformation to the original lengthDetermine stress and longitudinal strain
- Steel Stress-Strain diagram. Which of the following statements is NOT correct? Engineering stress is the stress computed using the original area and not the necking down area. The constant stress region is called the yield plateau or plastic range. The linear portion is also called the plastic range. The proportional limit, elastic limit, upper and lower yield points are very close to one another and are treated as a single point called the yield point.An element in plane stress is subjected to stresses o, = -8400 psi, ay = 1100 psi, and ty = 1700 psi (see figure). The material is aluminum with %3D modulus of elasticity E =10,000 ksi and Poisson's ratio v = 0.33. Determine the following quantities: (a) the strains for an element oriented at an angle 30 degrees, (b) the principal strains, and (c) the maximum shear strains. Show the results on sketches of properly oriented elements. Ty Txy Ox9 The ratio of direct stress to the corresponding volumetric strain is constant within its elastic limit. The ratio is known as Volumetric strain Bulk modulus Shear modulus Modulus of elasticity Poisson's ratio
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