Crush resistance testing involves the measurement of a compressive load to a point when a sample deforms, fractures, shatters or collapses. This type of test may be applied to a variety of products including corrugated cardboard, glass, bearings, bricks, concrete, or any sample where crush resistance is important. This is a common test used in packaging design and validation.
Generally, a crush resistance test involves a load limit. The material under test is compressed and compared to the load limit. Maximum load, load at break and work at maximum load are calculated.
Typical graph showing compression test:
Typical graph showing compression test to rupture: