Design of contact-aided compliant cellular mechanisms with curved walls

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Contact-Aided Compliant Cellular Mechanisms (C3M) are cellular structures designed with contact mechanisms integrated into each cell to provide stress relief. This paper addresses compliant cellular structures with curved walls and internal contact mechanisms. The use of curved walls in cellular structures tends to improve their global strain performance, and is beneficial for fabrication. The addition of contact mechanisms results in stress relief, allowing the cells to be stretched farther than they could without contact. Honeycomb cells with curved walls are modeled, and finite element analysis was used to calculate the maximum global strains for the non-contact and contact-aided cells. An optimization procedure was performed to find the cell geometries that resulted in the highest global strains. Strains of up to 32.4% and 19.7% are predicted for the optimized curved non-contact and contact-aided cells, respectively. The curved cells were found to be consistently capable of significantly greater global strains than the contact-aided cells with straight walls, making them ideal for high strain applications. Comparison of curved and non curved, non-contact and contact-aided cells shows that the curved feature of the cells results in a significantly greater improvement in global strains than adding a contact mechanism.

Original languageEnglish (US)
Title of host publication21st International Conference on Adaptive Structures and Technologies 2010, ICAST 2010
Pages189-200
Number of pages12
StatePublished - Dec 1 2010
Event21st International Conference on Adaptive Structures and Technologies 2010, ICAST 2010 - University Park, PA, United States
Duration: Oct 4 2010Oct 6 2010

Publication series

Name21st International Conference on Adaptive Structures and Technologies 2010, ICAST 2010

Other

Other21st International Conference on Adaptive Structures and Technologies 2010, ICAST 2010
CountryUnited States
CityUniversity Park, PA
Period10/4/1010/6/10

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Mechanics of Materials
  • Building and Construction

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    Cirone, S., Frecker, M. I., & Lesieutre, G. A. (2010). Design of contact-aided compliant cellular mechanisms with curved walls. In 21st International Conference on Adaptive Structures and Technologies 2010, ICAST 2010 (pp. 189-200). (21st International Conference on Adaptive Structures and Technologies 2010, ICAST 2010).