Impact Testing

Impact Testing

Impact resistance is one of the most important properties for a part designer to consider, and without question, the most difficult to quantify. The impact resistance of a part is, in many applications, a critical measure of service life. More importantly these days, it involves the perplexing problem of product safety and liability.

One must determine:

1. the impact energies the part can be expected to see in its lifetime,

2. the type of impact that will deliver that energy, and then

3. select a material that will resist such assaults over the projected life span

Two import Impact Tests are:

• The Charpy Impact Test

• The Izod Impact Test