Abstract
So far we have seen that calculus of variations and the finite element method both refer to the integral equations. The finite difference method on the other hand deals primarily with the differential equations. At any stage of the problem however, these three methods follow very analogous paths. In order to illustrate the similarities between them, let us consider an elementary problem such as a simple prismatic beam subject to a distributed transverse load p (x). The integral and the differential equations of this problem are, respectively,
and
.
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© 1975 Springer-Verlag Wien
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Kardestuncer, H. (1975). Analogy of the Approximate Methods. In: Discrete Mechanics A Unified Approach. International Centre for Mechanical Sciences, vol 221. Springer, Vienna. https://doi.org/10.1007/978-3-7091-4350-6_5
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DOI: https://doi.org/10.1007/978-3-7091-4350-6_5
Publisher Name: Springer, Vienna
Print ISBN: 978-3-211-81379-9
Online ISBN: 978-3-7091-4350-6
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