Pugno, Nicola Department of Structural Engineering, Politecnico di Torino, Torino, Italy.
- Space elevator concept
- Classical theories on strength of solids need to be revised at the nanoscale
- Solution of the paradoxes
- Cable strength
- Links to Primary Literature
- Additional Readings
Classical theories on the strength of solids, based on fracture mechanics or maximum stress, assume a continuum. Even if this robust hypothesis has been demonstrated to work at the nanoscale for elastic calculations, it has to be revised for computing the strength of nanostructures or nanostructured materials. Accordingly, quantized strength theories recently have been formulated and validated by atomistic and quantum-mechanical calculations or nanotensile tests. As an example, we will discuss the implications on the strength prediction for the carbon nanotube-based space elevator's megacable.
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