Residual Strength of Dented Tubulars: Impact Energy Correlation

A procedure for the analysis of the damage of tubular members by denting and bending under lateral load is described. This leads to a relationship between impact energy and consequent damage. A large displacement, elasto-plastic analysis of dented tubular columns with imperfect straightness is introduced, which allows the effect of impact energy on member residual strength to be determined. Examples of damage reported from offshore structures are used to illustrate the analysis.