1. The problem statement, all variables and given/known data Given a composites tube made up of +45 layup. The tube is subjected to positive torque. Suggest a new layup that will improve the strength of the tube when subject to clockwise and anti-clockwise torque. Motivate your choice. 2. Relevant equations 3. The attempt at a solution I think the layup should be [+45/-45] as this will provide shear strength on both torque directions. But should it be symmetry as well?