Dynamic analysis of composite marine structures using full-field measurement techniques

Abstract

Composite materials are increasingly used in structural applications within the marine industry. Due to the geometric complexity of marine structures, there is a practical requirement that they are assembled by joining smaller component pieces using either mechanical fasteners or adhesive bonding. In this paper Digital Image Correlation (DIC) is used to provide full-field analysis of the complex strain fields generated within an adhesively bonded composite single lap joint. Tests are undertaken quasi-statically and at high rate, demonstrating a significant change in the assembly response between laboratory testing conditions and dynamic loading events typical of the marine environment. The work demonstrates the potential of applying full-field experimental technique to provide detailed analysis of complex structural problems, typical of large marine structures.