Physics – Classical Physics
Scientific paper
2009-12-17
Phys. Rev. E 76, 046601 (2007)
Physics
Classical Physics
10 pages, 5 figures
Scientific paper
10.1103/PhysRevE.76.046601
We consider a plate made from an isotropic but brittle elastic material, which is used to span a rigid aperture, across which a small pressure difference is applied. The problem we address is to find the structure which uses the least amount of material without breaking. Under a simple set of physical approximations and for a certain region of the pressure-brittleness parameter space, we find that a fractal structure in which the plate consists of thicker spars supporting thinner spars in an hierarchical arrangement gives a design of high mechanical efficiency.
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