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Can we use kevlar, a composite material in leaf springs. I mean does it have the properties which are essential for a leaf spring (like resistance to bending, elasticity)
if it has, are(properties) they sufficient in case of heavy vehicle leaf springs?
Of course. kevlar has high stiffness per weight so you would use it for a spring that needs to be stiff and light. It has somewhat less strain capability than glass fiber, which I suppose, along with cost, is why glass fiber composites seem to be selected for vehicle leaf springs.
