There are 4 main types of tests necessary to determine the strength of a composite
Tensile strength
Compression
Shear
Fatigue
Tensile strength
https://fractory.com/ultimate-tensile-strength/
https://interestingengineering.com/understanding-tensile-strength-its-importance-in-engineering
not done yet don’t judge me please
Compression
https://www.instron.us/en-us/our-company/library/test-types/compression-test
https://www.mee-inc.com/hamm/tension-and-compression-testing/
Shear
https://matmatch.com/learn/property/shear-strength
https://www.corrosionpedia.com/definition/1026/shear-strength
Fatigue
Repetitive force. Causes materials to break after time and use.