So when the fibre is drawn the researchers apply a powerful electric field to ensure that the molecules in the plastic all line up in the same direction as the fibre cools.
This Recommendation is based on the use of one fibre per direction.
本建议是基于每个方向使用一根光纤。
3
The elastic modul of short fibre composite material whose fibres volume and direction are random distributed is calculated by means of the random medium micromechanics method.