This is a followup to Lion4K's thread.
I wouldn't suggest such powerful or complicated shields as Lion4K did. My suggestion is to add a ballistic shield made of advanced alloy.
This shield is much stronger than wood and iron and has a durability of 559. It usually takes a strong hit dealing five hearts or more to affect the durability. However there is a downside, the shield is weak to pickaxes, drills, and mining lasers. These tools will always affect the durability and, like an axe, have a chance to disable the shield.
Have you ever wondered why you are running around with modern composite armor 
and a medieval shield?
Maybe you are tired of being killed by other players with chainsaws and Nano-Sabers.
Perhaps you mine with dynamite but are too lazy to back away?
Fear not, after two weeks of internal testing IndustrialCorp2 has issued the blueprints for a new ballistic shield.
To craft, simply weld seven sheets of advanced alloy together, like this:
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Now you can run around with matching armor and shield .