Abstract
Abstract Carbon Fiber Reinforced Polymer (CFRP) composite materials have been widely used in high-tech fields because of their outstanding physical properties. However, barely visible impact damage can be introduced by low velocity impact, which might bring tremendous risk. Monitoring impact forces is essential for the integrity and reliability of CFRP structures. In this paper, a reverse localization scheme on CFRP composite materials is developed. The scheme is based on a predictive mode of attenuated strain wave. The signals induced by low velocity impact are obtained by strain gauges. The proposed localization scheme has been verified by experimental tests of the CFRP plates with symmetrical stacking [0/45/90/−45]2s The errors occurring in the test can be accepted for engineering application. The calculated impact locations are generally in consistent with the testing impact locations.
Highlights
The technology of Structural Health Monitoring(SHM) can improve the safety of high-performance structures reliably, efficiently and economically, and reduce the maintenance cost of structures
Barely visible impact damage can be introduced by low velocity impact, which might bring tremendous risk
The proposed localization scheme has been verified by experimental tests of the Carbon Fiber Reinforced Polymer (CFRP) plates with symmetrical stacking [0/45/90/−45]2s The errors occurring in the test can be accepted for engineering application
Summary
The technology of Structural Health Monitoring(SHM) can improve the safety of high-performance structures reliably, efficiently and economically, and reduce the maintenance cost of structures. Some researchers have studied the damage location problem of composite laminates by pure data driven method [7, 8]. A technique for identifying the location of a delamination in a composite materials structure using the S0 mode was proposed [10], and the attenuation factor of carbon fiber reinforced composite was determined by matching the amplitudes to the experimental data in a numerical model. The prediction model of lamb wave propagation attenuation in carbon fiber reinforced polymer has been established by model of Rayleigh damping. Aiming at the low velocity impact localization of carbon fiber reinforced composite structure, a new method of localization is proposed based on the previous research in this paper.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
