Carbon fiber is a lighter and stronger material to use and would theoretically be an ideal material to use for a football helmet. The problem is that carbon fiber has poor impact resistance.
The University and Oregon University worked on a project to make a complete uniform out of carbon fiber. Article below.
http://www.carbonfiberguru.com/2010/01/23/oregons-carbon-fiber-footbal-helmets/
Fiberglass is generally stronger than polycarbonate in terms of impact resistance and durability. However, polycarbonate is known for its higher resistance to shattering and flexibility, making it a popular choice for applications where impact resistance and flexibility are important.
A plastic with special coating that is 250 times stronger than glass and 30 times stronger than acrylic.
Polycarbonate is considered one of the strongest types of clear plastic for sheets, known for its high impact resistance and durability. It is often used as a substitute for glass due to its strength and clarity.
Lenses made from polycarbonate, the same type of plastic used for the space shuttle windshield, are about 50 times stronger than other lens materials.
You could try a flexi or sports frame with polycarbonate lenses. Polycarbonate is 12 times stronger than regular lens plastic and will stand up to almost eventhing that is thrown at it. Some sports frames have head straps on them to keep them in plcae when playing sports.
The smaller the gage the thicker the material; therefore, for the same material, 14 gage is stronger.
It is better to wear contact lenses for sport but if you are unable to, or do not want to, wear contacts, make sure that you buy Polycarbonate lenses for your glasses. Polycarbonate is 12 times stronger than regular plastic and will not break or shatter if you take a fall.
High-index lenses are thinner and lighter, so they’re great for stronger prescriptions. They help avoid thick, bulky lenses, giving you a more comfortable and stylish look. Polycarbonate lenses are light, tough, and protect against UV rays. They’re perfect for active people, kids, or anyone who needs lenses that can handle a little extra wear and tear.
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Auto glass is made out of a strong yet flexible polycarbonate. This is stronger than normal glass and will resist scratches and crack easier than the regular glass can.
b. Choosing a material that will show warning before it fails apex
plastic