Design and Testing of an Active Core for Sandwich Panels

Abstract

This report presents a study on analysis, design and testing of an active core of a sandwich panel for achieving maximum bending morphing. Firstly, a SIMP-PP algorithm is developed by combining the SIMP method and the physical programming for topology design of complaint mechanisms and then validated via a number of selected numerical examples. Secondly, a unit cell concept is established for the overall shape morphing of single unit cell for the purpose of conducting topology optimization of an active core, and then multiple unit cells connected in a series manner to form the core are assessed numerically to understand its capability of shape morphing. Thirdly, a prototype of three unit cell core was fabricated using rapid prototyping for experimental demonstrating the morphing capability. Preliminary testing results show that the cantilever core can achieve a maximum tip deflection angle of approximately 10 degrees.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 2008
Accession Number
ADA485417

Entities

People

  • Jiangzi Lin
  • Liyong Tong
  • Zhen Luo

Organizations

  • University of Sydney

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Algorithms
  • Genetic Algorithms
  • Geometry
  • Materials
  • Mechanics
  • Multiobjective Optimization
  • Optimization
  • Phase Transformations
  • Product Prototyping
  • Prototypes
  • Sandwich Panels
  • Software Prototyping
  • Systems Engineering
  • Topology
  • Topology Optimization
  • Transition Temperature
  • Two Dimensional

Readers

  • Manufacturing Engineering.
  • Nanocomposite Materials Science
  • Structural Health Monitoring of Composite Structures.