### CALIBRATION OF IMPACT RIGS/ CRASH WORTHINESS TESTING

This is the most frequently used method to calculate the mean crushing load Pm3 is obtained by dividing the area of the recorded load/shortening characteristics by the shortening of the column Definition IV Pm 6 = jo% < d{ / 6 where P c is the instantaneous crushing load when the instantaneous shortening is equal to 5 c Loss energy coefficient It is defined as follows w w P 6