Investigation on interlaminar delamination tendency of multidirectional carbon fiber composites

Warning The system is temporarily closed to updates for reporting purpose.

Khan, Raja Muhammad Awais and Emami Tabrizi, Isa and Ali, Hafiz Qasim and Demir, Eralp and Yıldız, Mehmet (2020) Investigation on interlaminar delamination tendency of multidirectional carbon fiber composites. Polymer Testing, 90 . ISSN 0142-9418 (Print) 1873-2348 (Online)

Full text not available from this repository.

Official URL: http://dx.doi.org/10.1016/j.polymertesting.2020.106653


In this investigation carbon fiber reinforced laminates with different orientation layups are prepared and studied under tensile loading condition. Multiple strain measurement techniques, namely, resistive strain gauges, embedded optical sensors and digital image correlation are used to analyze stress-strain behavior simultaneously through the thickness of composite materials, and to determine the sequence of failure in different plies. Inconsistencies of strains measured through different methods is correlated with the tendency for interlaminar delamination, therefore demonstrating the ability of multi-instrument approach to describe damage progress through the thickness of multidirectional laminates. Complementary analysis through acoustic emission methods reveals that the angle of off-axis surface plies can influence the sequence of failure under tensile loading condition, and damage monitoring capabilities of acoustic emission system is directly affected by delamination tendency of surface plies. Remarkably, the delayed failure of off-axis plies is shown to be related to reorientation of these layer towards loading direction using infrared thermography method.

Item Type:Article
Uncontrolled Keywords:Multi-directional laminates; Digital image correlation; Acoustic emission; Strain measurement; Thermography
ID Code:41123
Deposited By:Mehmet Yıldız
Deposited On:28 Sep 2020 12:18
Last Modified:28 Sep 2020 12:18

Repository Staff Only: item control page