Topics: Aircraft Materials, Aerospace Materials, aluminum, Titanium, Magnesium, steel, super alloys, Fibre–polymer composites, Fibre–metal laminates, Factor of safety, Design factor, safety factor, Network Polymers, Deformation mechanisms, Semi crystalline polymers, plastic polymers, elastomers deformation mechanism, Thermoplastics, Thermosets, Time-Dependent Deformation, Stress relaxation test, Advanced Polymers, Ultrahigh Molecular Weight Polyethylene