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Detecting Impact Damages in an Aramid/Glass Fiber Reinforced Hybrid Composite with Micro Tomography

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Abstract:

This paper utilizes the micro computerized tomography (micro-CT) as the NDI technique to characterize the initial matrix delaminations locations and sizes in an aramid/glass fiber reinforced hybrid composite test specimen after a low velocity impact tests. Further, to visualize the localized low velocity impact damage volumes; based on the specimens micro-CT results; image analysis, geometric modeling and meshing softwares CtAn and CtVox were used. Finally, interpretation of damage mechanisms occurred in aramid/glass fiber reinforced hybrid composite after low velocity impact loading presented with accurate 3-D rendered models obtained from a series of micro-CT slices. 3-D rendered models gained from impacted specimens help to quantify the internal microscopic damage modes of complex material system such as aramid/glass fiber reinforced hybrid composite. It is very important to predict or determine composite materials response to an impact loading since impacts occur during manufacture, normal operations, maintenance, etc. After low velocity impact loading tests, investigation of damage zone will provide a better composite manufacturing process. For example, it is acknowledged that up to 80% of the cost of manufacture of a composite is xed once the preliminary conguration had been nalised. Further detail changes afterwards can only make a small impact on the nal cost of the manufacturing process.

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Periodical:

Advanced Materials Research (Volume 445)

Pages:

9-14

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.445.9

Citation:

Cite this paper

Online since:

January 2012

Authors:

Sinan Fidan, Tamer Sınmazcelik, Egemen Avcu, Mustafa Ozgur Bora, Onur Coban

Keywords:

Aramid/Glass Fiber Reinforced Hybrid Composite, Low Velocity Impact Loading, Micro Tomography, Non-Destructive Inspection

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