Stress recovery based on results from a two-dimensional plate-theory solution is a common method to estimate the transverse stresses in a plate. The development of a stress-recovery procedure is presented that is based directly on plate-theory finite element solutions applicable to situations in which geometrically nonlinear and inertial effects are important. The key reason for employing the stress-recovery procedure is its computational efficiency compared to three-dimensional finite element analyses. The developed procedure is applied to an example flat plate under the influence of dynamic loading. Results from the developed procedure are discussed; they compare well to those from a benchmark three-dimensional finite element solution. The range of applicability of the procedure, considering plate span-to-thickness ratio and degree of nonlinearity, is illustrated. Finally, a discussion is included in which the computational effort to obtain an accurate transverse-stress distribution by the stress-recovery method is compared to that of the benchmark three-dimensional solution.


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    Title :

    Stress Recovery in Composite Laminates Including Geometrically Nonlinear and Dynamic Effects



    Published in:

    Publication date :

    2016




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English



    Classification :

    BKL:    50.93 / 55.50 Luftfahrzeugtechnik / 50.93 Weltraumforschung / 55.60 Raumfahrttechnik / 55.50 / 55.60
    Local classification TIB:    770/7040





    Stress Recovery in Composite Laminates Including Geometrically Nonlinear and Dynamic Effects

    Hartman, Timothy B. / Hyer, Michael W. / Case, Scott W. | AIAA | 2016



    Geometrically Nonlinear Stress Recovery in Composite Laminates

    Hartman, Timothy B. / Hyer, Michael W. / Case, Scott W. | AIAA | 2012