Radius of Rolled-Up Trilayer
Radius of Rolled-Up Trilayer
Using the principle of a bimetal strip on the nanoscale, rolled-up tubes with equilibrium radius can be fabricated by etching the layer below a prestrained multilayer. Here, we use three layers that are stacked on top of one other, with different eigenstrains , thicknesses , Young's modulus , and Poisson's ratio . Assuming mechanical equilibrium of bending forces and moments, the equilibrium radius can be determined.
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