Thin-Walled Structures with Structural Imperfections. by Luis A. Godoy (Auth.)

By Luis A. Godoy (Auth.)

  • ...With the present development of huge constructions of advanced shapes, this e-book could be beneficial in protecting all elements of imperfection research in one resource. The publication, that is probably the 1st within the subject, might be an asset to practicing layout engineers, examine scientists as a reference e-book and as a textual content publication for post-graduate studies....The publishers deserve appreciation for the standard printing and illustrations and alos bringing out the publication in this necessary sensible subject.
    R. Narayanan, Journal of Structural Engineering, January 1997

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Extra resources for Thin-Walled Structures with Structural Imperfections. Analysis and Behavior

Example text

52) with m , n - 0, 1, 2, .... The perturbation of Eq. + b1~910 - c1000)]--[:- ~3 [/~ (003 - a2~02 ~- b2001)] -[--T~ 2 [k (012 -- a2011 '[ 52010 -- a l a 2 0 0 1 -- alb2000)] -4- T2~ [~ (~21 -- alOll -4- blO01 - ala2OlO - a2blOo0)] -~-... 54) The solution that we wanted in Eq. 55) Equivalent Load Analysis From Eq. 56) kO - f + f*(~, T, O) where f*((, T, O) -- kO(alT - bl T2 "-{-ClT3 -4-a2~ -4- ala2T~ + bla2T2~ -- Cla2T3~ -- b2~2 + alb2T~ 2 -- blb2-r2~2 + clb2T3~ 2) or else 0) - k0r (,, where r (v, ~) is the term in parenthesis in Eq.

The analysis is more involved, but it follows the same lines described previously. The analysis of systems that have many degrees of freedom is more involved, and requires the use of matrix notation. This is presented in the next four chapters. Single Degree-of-Freedom Systems with Imperfections 51 References [1] Bellman, R. , Perturbation Techniques in Mathematics, Physics and Engineering, Holt Rinehart and Winston, New York, 1964. [2] Croll, J. G. A. and Walker, A. , Elements of Structural Stability, Macmillan, London, 1972.

Systems that have both imperfections in the geometry and in constitutive parameters contain two amplitudes of imperfection and one degree of freedom. The analysis is more involved, but it follows the same lines described previously. The analysis of systems that have many degrees of freedom is more involved, and requires the use of matrix notation. This is presented in the next four chapters. Single Degree-of-Freedom Systems with Imperfections 51 References [1] Bellman, R. , Perturbation Techniques in Mathematics, Physics and Engineering, Holt Rinehart and Winston, New York, 1964.

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