Stiff, strong zero thermal expansion lattices via the Poisson effect

  title={Stiff, strong zero thermal expansion lattices via the Poisson effect},
  author={Jeremy Lehman and Roderic S. Lakes},
Designing structures that have minimal or zero coefficients of thermal expansion (CTE) are useful in many engineering applications. Zero thermal expansion is achievable with the design of porous materials. The behavior is primarily stretch-dominated, resulting in favorable stiffness. Two and three-dimensional lattices are designed using ribs consisting of straight tubes containing two nested shells of differing materials. Differential Poisson contraction counteracts thermal elongation. Tubular… CONTINUE READING


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