Dent resistance indicates the ability of a component to withstand an impact without permanent deformation.

Comparative energy absorbed by a material is proportional to:


Where: Ys2 = yield stress
E = Modulus of Elasticity

This factor should be used as a design guide for the following reasons:

  • Tabulated stress dates are generated at low strain rates.
  • All other factors are rarely equal.

In view of these restrictions, the data in Table 1, “Properties Relating to Dent Resistance,” can serve as a useful guide in assessing the dent resistance of various material options.