Comparison of Final Fracture Extraction Techniques for Interrupted In situ Tensile Tests of Glass Fiber Reinforced Polymers

Aleksandr Amirkhanov, Dietmar Salaberger, Johannes Kastner, Christoph Heinzl, Meister Eduard Gröller
Comparison of Final Fracture Extraction Techniques for Interrupted In situ Tensile Tests of Glass Fiber Reinforced Polymers
In Proceedings of 7th Conference on Industrial Computed Tomography , Leuven , Belgium (iCT 2017) . February 2017.

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Abstract

To develop and optimize of advanced composite materials such as glass fiber reinforced polymers (GFRPs) for a specific application area is an important topic. To inspect mechanical properties of GFRPs, material engineers use interrupted in situ tensile tests. During these tests, a test specimen is scanned multiple times in an industrial computed tomography (CT) scanner under various loads, starting from no load until the final fracture of the specimen. In this work we focus on the final step of the interrupted in situ tensile test, which is scanned when the specimen is completely losing its structural integrity in the final fracture zone. The defects occurring in the subsequent loading stages merge and ultimately form the final fracture. For this reason, conventional techniques tend to generate error prone final fracture regions or surfaces and thus require more advanced algorithms for extraction. The main contribution of this paper is found in the comparison of different techniques for extracting the final fracture. In the comparison we outline advantages and drawbacks of the presented techniques relative to each other.

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BibTeX

@inproceedings{amirkhanov-2017-cffet,
  title =      "Comparison of Final Fracture Extraction Techniques for
               Interrupted In situ Tensile Tests of Glass Fiber Reinforced
               Polymers",
  author =     "Aleksandr Amirkhanov and Dietmar Salaberger and Johannes
               Kastner and Christoph Heinzl and Meister Eduard Gr\"{o}ller",
  year =       "2017",
  abstract =   "To develop and optimize of advanced composite materials such
               as glass fiber reinforced polymers (GFRPs) for a specific
               application area is an important topic. To inspect
               mechanical properties of GFRPs, material engineers use
               interrupted in situ tensile tests. During these tests, a
               test specimen is scanned multiple times in an industrial
               computed tomography (CT) scanner under various loads,
               starting from no load until the final fracture of the
               specimen. In this work we focus on the final step of the
               interrupted in situ tensile test, which is scanned when the
               specimen is completely losing its structural integrity in
               the final fracture zone. The defects occurring in the
               subsequent loading stages merge and ultimately form the
               final fracture. For this reason, conventional techniques
               tend to generate error prone final fracture regions or
               surfaces and thus require more advanced algorithms for
               extraction. The main contribution of this paper is found in
               the comparison of different techniques for extracting the
               final fracture. In the comparison we outline advantages and
               drawbacks of the presented techniques relative to each
               other.",
  month =      feb,
  booktitle =  "Proceedings of 7th Conference on Industrial Computed
               Tomography , Leuven , Belgium (iCT 2017) ",
  URL =        "https://www.cg.tuwien.ac.at/research/publications/2017/amirkhanov-2017-cffet/",
}