Application of Optimality Criterion to Fiber-Reinforced Composites.

Abstract

AYYA,V. B. ;Johnson,C. D. ;Tischler,V. A. ;AFFDL-TR-73-6(*composite materials, optimization), (*airframes, composite materials), aluminum, boron, epoxy resins, fibers, alignment, wings, panels, weight, numerical analysis, laminatesfinite element analysis, *fiber compositesThis report presents an efficient optimization method, based on an optimality criterion and a numerical search, for the minimum weight design of structures made from boron/epoxy composite materials. A RECURRENCE RELATION IS DERIVED AND IS INCORPORATED INTO THE COMPUTER PROGRAM BASED ON THE DISPLACEMENT METHOD OF FINITE ELEMENT ANALYSIS. The optimum design procedure takes into consideration multiple loading conditions and displacement constraints on the structure. Several sample problems consisting of both isotropic and composite elements are solved and the results are presented. (Author, modified-PL)

Document Details

Document Type
Technical Report
Publication Date
May 01, 1973
Accession Number
AD0763732

Entities

People

  • C. D. Johnson
  • N. S. Khot
  • V. A. Tischler
  • V. B. Venkayya

Organizations

  • Flight Dynamics Laboratory

Tags

DTIC Thesaurus Topics

  • Airframes
  • Composite Materials
  • Computer Programs
  • Computers
  • Displacement
  • Elements
  • Epoxy Composites
  • Epoxy Resins
  • Fiber Reinforced Composites
  • Finite Element Analysis
  • Materials
  • Numerical Analysis
  • Optimization
  • Reinforced Plastics
  • Resins

Fields of Study

  • Materials science

Readers

  • Mathematical Modeling and Probability Theory.
  • Reinforced Composite Materials
  • Systems Analysis and Design