NDLI: Field strain measurement on the fiber-epoxy scale in CFRPs

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Field strain measurement on the fiber-epoxy scale in CFRPs

Content Provider	Semantic Scholar
Author	Taoa, Ran Moussawia, Ali Zhoua, Jian Lubineaua, Gilles Panb, Bing
Copyright Year	2016
Abstract	Laminated composites are materials with complex architecture made of continuous fibers (usually glass or carbon) embedded within a polymeric resin. The properties of the raw materials can vary from one point to another due to different local processing conditions or complex geometrical features for example. A first step towards the identification of these spatially varying material parameters is to image with precision the displacement fields in this complex microstructure when subjected to mechanical loading. Secondary electron images obtained by scanning electron microscopy (SEM) and then numerically deformed are post-processed by either local subset-based digital image correlation (DIC) or global finite-element based DIC to measure the displacement and strain fields at the fiber-matrix scale in a cross-ply composite. It is shown that when global DIC is applied with a conformal mesh, it can capture more accurate local variations in the strain fields as it takes into account the underlying microstructure. In comparison to subset DIC, global DIC is better suited for capturing gradients across the fiber-matrix interfaces.
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://repository.kaust.edu.sa/bitstream/handle/10754/594980/93_tao_paper.pdf;jsessionid=79A1C8AA1FCF071F8B8E5031CAA262DA?sequence=1
Language	English
Access Restriction	Open
Subject Keyword	Digital differential analyzer Digital image Displacement mapping Embedded system Embedding Epoxy Resins Gradient Microscopes, Electron, Scanning Neoplasm Metastasis Numerical analysis Polymers Post-wall waveguide Psychologic Displacement Resin Scanning Electron Microscopy Subgroup Tissue fiber
Content Type	Text
Resource Type	Article

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