Page 163 - Template Tesis UTM v2.0
P. 163

For this study, perforation did not occur because the energy was set to about 5

                   % below the maximum energy obtained from quasi-static indentation test. During the
                   test, it is observed that the impactor bounced back with little modes of damage. As

                   shown in Figure 4.22, the force displacement curves of hybrid composites of G2/B3/G2,
                   G2/J3/G2 and G2/F3/G2 were closely returning to their original position, means that the

                   impactor was bounced back, and perforation was not occurred.





                        3500
                                (a)

                        3000


                        2500



                       Force (N)  2000


                        1500


                        1000


                         500



                           0
                             0         1         2         3         4         5         6         7
                                                         Displacement (mm)


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