Foam Structures with a Negative Poisson's Ratio

@article{Lakes1987FoamSW,
  title={Foam Structures with a Negative Poisson's Ratio},
  author={Roderic S. Lakes},
  journal={Science},
  year={1987},
  volume={235},
  pages={1038 - 1040}
}
  • R. Lakes
  • Published 27 February 1987
  • Linguistics
  • Science
A novel foam structure is presented, which exhibits a negative Poisson's ratio. Such a material expands laterally when stretched, in contrast to ordinary materials. 

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A method of calculating the anisotropy of Poisson's ratio is applied to trigonal and tetragonal crystals in the literature. The method of calculation is extended to hexagonal crystals. The results

Encystation and expression of cyst antigens by Giardia lamblia in vitro.

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Foundatios ofSolidMechanic (PrenticeHall

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Trophozoites of strain WB (ATCC #30957) had been grown to late log phase in supplemented (6) Diamond's TYI-S-33 medium (7) as described

  • I thank the University ofIowa Research Foundation fbr filing a patent application for this invention. Specimens of polyester foam were kindly supplied by Foamade Industries

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