Stress transfer efficiency in aligned multi-wall carbon nanotubes sheet/epoxy composites

Stress transfer efficiency for 60 walls multi-walled carbon nanotube (MWNT) was calculated by the shear-lag theory. The results indicated that stress transfer between walls is insufficient at several tens of nanometer from the end; however stress converged to the same value for adequate length. Effective young’s modulus was also calculated and indicated that MWNT can be treated as short fiber for over 20 μm length (Aspect ratio >400). The...