Need correct answers please. Answer ONLY 4 of the following 5 multiple choice qu

Question

Need correct answers please.

Answer ONLY 4 of the following 5 multiple choice questions (20 Points) 1. In finite element analysis, a solid is modelled with infinite degrees of freedom. a) True b) False 2. Shape functions are a) Exponential functions b) Dynamic functions c) Interpolating polynomials d) None of the above matrix. 3. The stress tensor for plane stress condition is a a) Two by two b) Three by three c) Four by four d) Six by six degrees of freedom 4. Each node of a one-dimensional frame element has a) Two b) Three c) Four d) None of the above 5. Linear static structural analysis means a) Shape functions are linear b) Deflection is a linear function c) There is no deformation d) Stresses are elastic

Explanation / Answer

1)false, in space a body will have 12 degrees of freedom

2)option c , interpolating polynomials are the field variables used to interpolaye nodes..

3) option b , it is 3×3 matrix making Z direction zero.

4) option b ,, each node will have three displacements or 3 degrees of freedom,( two linear+1rotational)

5) option D, as the assumption made is "elements are elastic

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