Characterisation of Bond Line Porosity

Michael Hinchcliffe


The present day aerospace industry uses bonded composite structures extensively in airframes. These structures are adhesively bonded together to transfer loads from one component to another. The existence of any kind of flaw or defect in an adhesively bonded structure is generally an undesirable bond line characteristic. This report provides background information on the use of advanced composite materials in the aerospace industry, the application of adhesively bonded joints in aircraft structures, the development and impact of porosity on adhesively bonded joints, and Non Destructive Evaluation techniques employed to detect bond line flaws. The report includes an indication of the direction that the project will take regarding the characterisation of bond line porosity.


Porosity; composite materials; adhesively bonded joints

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