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Strain Energy Methods

CHAPTER OBJECTIVES

The strain energy methods are most commonly used for solving the unknown factors in complicated structural problems. In this chapter, students will learn about:

  • Castigliano’s theorem for determination of displacement, angular rotation and angular twist by the partial derivatives of the strain energy absorbed by the body during deformation caused by external loads, moments etc.

  • Strain energy in a body stored due to direct stress, shear stress, bending moment and twisting moment.

  • Deflection in beams due to shear strain energy.

  • Maxwell’s reciprocal theorem states that the total strain energy stored in a body, does not depend on the order in which forces are applied on it.

  • Principle of virtual force ...

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