ON THE INVERSE PROBLEM OF RECTANGULAR-PLATES SUBJECTED TO ELASTIC IMPACT .2. EXPERIMENTAL-VERIFICATION AND FURTHER APPLICATIONS

Experimental verification of the method developed in Part 1 to identif y both the impact location and the force history from strain responses on a rectangular plate was performed. Results showed the validity of the method in a real impact event. Also, a method was developed to fur ther identify the initial velocity and the mass of an impactor by whic h a transverse impact was induced. This was accomplished by solving al gebraic equations obtained from the assumption that the lateral displa cements of both the impactor and the plate at the impact point were co incident during the contact period. Moreover, the inverse problem usin g incomplete response signals as the given data was investigated. A pr ocedure to temporarily reconstruct the lost portions of the recorded s ignals was first presented, and the identification problem could then be solved by similar methods as that used for the complete response si gnals, Experimental verification was also performed. The agreement bet ween the measured and the identified results was very satisfactory.