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2 International Journal of Applied Mechanics and Engineering

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Exact solution of the harmonic problem for a rectangular plate in flat deformation by the method of initial functions

Olodo E. T., Adanhounme V., Hounkonnou M. N.

International Journal of Applied Mechanics and Engineering

2017

Vol. 22, no. 2

349--361

A wide range of applications is based nowadays on analytical developments which allow a precise and effective approach and short time of computations compared with the time required for numerical methods; in this way these developments are suitable for calculations in real time. This work proposes an approach for solving a two-dimensional harmonic problem of a rectangular plate under local surface loading using Vlasov’s symbolic method of initial functions and a general solution of the harmonic equation for a rectangle. Substituting the harmonic functions in symbolic form for the corresponding solutions allows us to give the exact solution of the problem in trigonometric form.

Identification of heredity kernels and their influence on the life time of glass/polyester composites

Olodo E. T., Adjovi E. C., Adanhounme V.

International Journal of Applied Mechanics and Engineering

2014

Vol. 19, no. 4

725--734

One of the major problems encountered in prediction of hereditary viscoelastic behavior of polymeric composites is the determination of heredity kernels. This issue comes down to identification of the model characterizing the viscoelastic properties of these materials. The purpose of this work is to propose a model for prediction of viscoelastic nonlinear behavior of laminate composite with polyester matrix, through the study and analysis of heredity kernels and their influence on the life time of this material. Identification of this model required experimental determination at room temperature, of viscoelastic parameters of heredity kernels by macroscopic approach. These data provide predictive tools for establishment of the life time and long term stress limit under static complex loading for this type of material.