The role of interface fiber orientation on the delamination growth of ADCB E-glass/epoxy laminated composite specimens

سال انتشار: 1395
محل انتشار: پنجمین کنفرانس بین المللی کامپوزیت
کد COI اختصاصی: COMPOSIT05_028
زبان مقاله: انگلیسی
تعداد مشاهده: 342

نویسندگان

Professor,Composites Research Laboratory, Center of Excellence in Experimental Solid Mechanics and Dynamics, School of Mechanical Engineering, Iran University of Science and Technology, Tehran, ۱۶۸۴۶-۱۳۱۱۴, Iran

m.m komijani

m.sc.student Composites Research Laboratory, Center of Excellence in Experimental Solid Mechanics and Dynamics, School of Mechanical Engineering, Iran University of Science and Technology, Tehran, ۱۶۸۴۶-۱۳۱۱۴, Iran

m salamattalab

ph.d student Composites Research Laboratory, Center of Excellence in Experimental Solid Mechanics and Dynamics, School of Mechanical Engineering, Iran University of Science and Technology, Tehran, ۱۶۸۴۶-۱۳۱۱۴, Iran

چکیده

In the present study, the effect of interface fiber orientation on the delamination behavior of ADCB specimen is investigated. In other words, in this research, the R-curve behavior of ADCB specimen during the crack initiation and its propagation have been studied. For this goal, ADCB specimens with stacking sequences of [016//08] and [015/90//0/07] were selected in order to eliminate the effect of remote ply orientation on the R-curve behavior. So firstly, E-glass/epoxy laminated composites were manufactured by the hand lay-up method. In the next step, fracture tests on ADCB specimens were conducted using a universal test machine. The test results show that more energy is needed to pull out fibers which are perpendicular to the crack growth direction. So, as a significant result, it can be concluded that ADCB specimens with 0//90 interface have greater initiation and propagation of interlaminar fracture toughness than the specimens with 0//0 interface. In addition, according to the R-curve behavior, the bridging zone length of ADCB specimens with 0//0 interface is greater than that of the 0//90 interface. Based on the findings, this is due to more interweaving of two adjacent layers of the delamination interface with the same fiber orientation.

کلیدواژه ها

Interface fiber orientation, Fiber bridging length, Delamination growth, Fracture toughness, Crack initiation, Crack propagation

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