Comparison of different nail bending apparatus

A research to develope a registrated testmethod to define the allowable bending moment of a nail was started in spring of this year. A request for a registrated testmethod is caused by the final project of ir. H.P.C.A. Vianen ‘s study. The consequence of developing new codes in The Netherlands and Europe is part of this research. Different testmethods on nails have been carried out; a tensile test, a fourpoint-bending test and a lever test. The first method gives a stress-strain relation for calculate the maximun bending moment, the other methods results in force-displacement relations and gives values for the maximnum bending moment. A comparison between these testmethods has been made