Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników
Tytuł artykułu

Laminate ply stacking sequence optimization with fibers orientation imperfections

Wybrane pełne teksty z tego czasopisma
Warianty tytułu
Języki publikacji
The paper discusses the fiber orientations imperfections effect on the optimum design of a laminate plate to compressive load. It is assumed that fibers angular imperfection for each design variable can not exceed maiximum allowable deviation form variable's nominal value. These maximal accepted deviations are called tolerances. The incorporation of tolerances into the design algorithm is achieved by diminishing the limiting values of state variables by the product of assumed tolerances into appropriate sensitivities. Therefore, the given method allows to introduce tolerances into the design in a relatively simple way and ensures safe results. The paper is illustrated by examples of the rectangular laminate plate minimum thickness design. Numerical results show the reliability-based design to be important for structural safety compared the approach where tolerances are not taken into account.
Słowa kluczowe
Opis fizyczny
Bibliogr. 8 poz., rys., tab., wykr.
  • Technical University of Lublin, Departament of Applied Mechanics, Nadbystrzycka 36, 20-618 Lublin, Poland
  • 1. A. Adali, K . Duffy, Design of anlisymetric hybrid laminates for maximum buckling load : I. Optimal fibre orientation, Composite Structures, 14, 49-60, 1990.
  • 2. J. Bauer, W. Gutkowski, Structural optimization with sensitivity constraints and multi/oading conditions, Structural Optimization'93 Conference, J. H Erskovits [Ed.], Rio de Janeiro, Brasil, 65-71, 1993.
  • 3. D. Graesser, Z. B. Zabinsky, M. E. Tuttle, G. Kim, Optimal design of a composite structure, Composite Structures, 24, 273-281, 1993.
  • 4. W. Gutkowski, J. Bauer, Manufacturing tolerance incorporated in minimum weight design o f trusses, Engineering Optimization, 31, 393-403, 1999.
  • 5. R. T. Haftka, J. L. Walsh, Stacking-sequence optimization for buckling of laminated plates by integer programming, AIAA Journal, 30, 2, 814-819, 1992.
  • 6. C. Huang, B. Kroplin, On the optimization of composite laminated plates, Engineering Computations, 12, 403-414, 1995.
  • 7. B. P. Kristinsdottir, Z. B. Zabinsky, M. E. Tuttle, T. Csendes, Incorpora ting manufacturing tolerances in near-optimal design of composite structures, Engineering Optimization, 26, 1-23, 1996.
  • 8. M. P. Nemeth, Importance of anisotropy on buckling of compression-loaded symmetric composite plates, AIAA Journal, 24, 11, 1831-1835, 1986.
Typ dokumentu
Identyfikator YADDA
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.