3440 離散ウェーブレット変換を用いたCFRP積層板損傷評価(G03-7 複合材料,G03 材料力学)
詳細
Impact tests of CFRP laminae are carried out, and impact load is measured. These load histories are transformed using discrete wavelet transform, and these results are compared to actual damage observed in tested specimens. The relationship between both is considered. Comparing damaged and non-damaged results together, case of the damaged laminae. This characteristic waveform may be observed beginning at the failure time. So it is suggested that impact damage of CFRP laminae can be evaluated using load history data transformed by discrete wavelet transform.
