mechanical properties of fiber
malleability
substance's ability to deform under pressure (compressive stress)
elasticity
physical property when materials or objects return to original shape after deformation
hardness
measure of how resistant solid matter is to various kinds of permanent shape change when a force is applied
structural robustness
ability of a structure to withstand physical strain
ductility
measure of a material's ability to undergo significant plastic deformation before rupture or breaking
brittleness
material tendency to break from stress without significant plastic deformation