A Calculation Method for Buckling Deformation of Graphene-Flexible Substrate Structures
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[0068] In this simulation calculation, the initial tensile strain ε 0 = 40%, the strain after release is ε r =0; the initial length of PDMS is 19.6241nm, the width is 3.9704nm, the height is 4nm, and its density is 0.8×10 3 kg / m 3 , the elastic modulus is 2.63MPa; the elastic modulus and thickness of graphene are 1.1TPa and 0.335nm respectively, the total number of initial parent individuals is set to 20 groups, the evolution times are set to 50 times, and the crossover and mutation probabilities are set to 0.6 and 0.1 .
[0069] Initially set A g 、A s , λ and h genetic search ranges are [0, 3.9]nm, [0, 3.9]nm, [10, 300]nm and [0.01, 0.4]nm, the A g 、A s , λ and h are A g = 1.1918nm, A s = 0.1006nm, λ = 115.9660nm and h = 0.3000nm, the energy minimum is 8.406×10 -4 pJ, which is 1.636×10 less than its energy at perfect planarity -3 pJ should be small, and the calculation time of the whole result is about 90 minutes.
[0070] Compared with the previous traversal algor...
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