Publisher's Synopsis
Excerpt from Kinetic Theory of Engineering Structures Dealing With Stresses, Deformations and Work, for the Use of Students and Practitioners in Civil Engineering
The work of deformation constitutes the basis for the solution of all those problems which involve the elastic properties of the material and which are not susceptible to analysis by the methods of pure statics.
Work is the product of a constant force into the displacement Of its point of applica tion in the direction of the force.
When a prismatic body of length l and cross-section F is either lengthened or Shortened a small amount Al within the elastic limit, by a force S gradually produced without impact, then a certain amount of work or kinetic energy is stored up in the body. In the instant when the force ceases to alter the length a condition of static equilibrium is established and the total kinetic energy stored then assumes the form of potential energy or energy of position. When the force is gradually released and the body is allowed to resume its original length, the potential energy is liberated.
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