抄録
Low velocity impact performance analysis of fiber composite structure embedded with SMA was investigated. And, the energy-absorption of the structure due to tensile, shear, bending, and delamination effects was studied. In this study, Ballistic test is used to explore performances of fiber composite structure embedded with SMA under a low velocity impact. 9 mm Full Metal Jacket (FMJ) ammunition is used as projectile and 200 mm rectangular composite plate is used as target sample in this test. And, the control factors are number and arrangement of SMA material and thickness of the test samples. Taguchi method and ANOVA analysis method are used to explore the relevance and significance of each parameter to the energy absorption of the structure in this article. Furthermore, a multiple regression model was developed to fit the experimental data and to predict the energy absorption in changes of parameters effectively. Finally, the best combination of parameters used to resist a low velocity impact was obtained and discussed. The results reveal that the best combination of parameters enhances 19% of the energy absorption of the structure and SMA provides 18.47% contribution significantly.
