简介:Byusingthedynamicphotoelasticmethodandourtechniqueoffabricatinganinternalcrackinsolid,thescatteredwavesofincidentgrazinglongitudinalultrasonicwavepulsebyaribbon-typecrackareob-servedandanalyzed.Inparticular,thedistributionoftheintensityofthescatteredheadwaveismeasuredquantitatively.Theexperimentalresultsfairlyagreewiththetheoreticalonesgiveninref.[1].