5003 Lectures - Faculty of Engineering and Applied Science

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E5003 - Ship Structures I 118 © C.G. Daley ANS: MA= 166667 N-m, MB = 83333N-m ∆B = -.2082m 11.5. Stiffness method . sketch a 2D beam and show the degrees of freedom. Describe the meaning of the terms (any, all) in the 6x6 stiffness matrix for a 2D beam, and give 2 examples. 11.6. Explain the difference between the “Force” method, and the “Displacement” method. 11.7. In the stiffness method for a 2D beam, the standard value for the k22 stiffness term is;
E5003 - Ship Structures I 119 © C.G. Daley Topic 12: Energy Methods in Structural Analysis Coliseum Introduction In this chapter we will • Discuss application of energy methods in structural analysis • Show how conservation of energy conservation to the symmetry of structural stiffness terms ~~~~~~~~~~~~~~~~~~~~ Energy Methods Structural analysis is concerned with forces, deflections, stresses and strains. All these involve energy. An analysis of energy can be a way to simplify structural analysis. Energy is a scalar, and must be conserved, somehow. In some cases the mechanical work done by a force is converted to heat by friction:
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5003 Lectures - Faculty of Engineering and Applied Science

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