What is it about?
The objective of this work is to establish a full understanding of the resin-injection repair process for repairing barely visible impact damage carbon fibres reinforced composite laminates. Given the increasing interest in the development of robotically controlled repair system for composite laminates, it is important to understand the mechanisms that govern every stage of the resin-injection process so that it would enable us to develop a robotic control system with high precision in repairing the composite laminates that are used in aerospace structures and automobiles.
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Why is it important?
This work is important because current protocol for resin-injection repair appear to result in a repaired material with high variability in the fracture strength. What caused this variability is largely not clear. The variability may be attributed by different stages of the repair process but the mechanisms underpinning each stage is not well understood.
Perspectives
Since this report was published, we have proceeded to working on fundamental direct experimental approach to understand how two key elements of the repair process, namely drilling holes (leading to drilling-induced damage), resin for filling up cracks (resin properties, hybrid resin composites) affect the outcome of the repair.
Dr Kheng Lim Goh
Newcastle University
Read the Original
This page is a summary of: Mechanical properties of low-velocity impact damaged carbon fibre reinforced polymer laminates: Effects of drilling holes for resin-injection repair, Composite Structures, March 2020, Elsevier,
DOI: 10.1016/j.compstruct.2019.111806.
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