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Title: Method to measure orientation of discontinuous fiber embedded in the polymer matrix from computerized tomography scan data

Abstract

Usage of discontinuous glass fibers in injection and compression molded resin components is rapidly increasing to improve their mechanical properties. Since added fiber contributes to more strength along the fiber direction compared to transverse direction, the mechanical properties of such components strongly depend on the fiber orientation. Thus it is important to estimate the fiber orientation distribution in such materials. Here, we are presenting recently developed method to estimate fiber orientation from 3D image of fibers generated using micro CT scan. Typically the 3D images from CT scan are very large and it becomes difficult to separate each fiber and extract end point information. In this paper a novel method to address this challenge is presented. The micro-CT images were broken into finite volume, reducing data size, and then each fiber was reduced to its own center line, further reducing the data size, using Mimics Innovation Suite (Materialise NV). These 3D centerlines were then used to quantify the 2nd order orientation tensor. Our results from the proposed method are compared with the measurements using well established industry standard approach called method of ellipses for validation. The key challenges in estimating the fiber orientation are identified and future improvements are proposed.

Authors:
 [1];  [2];  [3];  [1]
  1. Toyota Research Inst. North America, Ann Arbor, MI (United States)
  2. Materialice NV, Leuven (Belgium)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Manufacturing Demonstration Facility (MDF)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1366363
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Journal Article
Journal Name:
Journal of Thermoplastic Composite Materials
Additional Journal Information:
Journal Volume: 29; Journal Issue: 12; Journal ID: ISSN 0892-7057
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Gandhi, Umesh, Sebastian, De Boodt, Kunc, Vlastimil, and Song, YuYang. Method to measure orientation of discontinuous fiber embedded in the polymer matrix from computerized tomography scan data. United States: N. p., 2015. Web. doi:10.1177/0892705715584411.
Gandhi, Umesh, Sebastian, De Boodt, Kunc, Vlastimil, & Song, YuYang. Method to measure orientation of discontinuous fiber embedded in the polymer matrix from computerized tomography scan data. United States. doi:10.1177/0892705715584411.
Gandhi, Umesh, Sebastian, De Boodt, Kunc, Vlastimil, and Song, YuYang. Thu . "Method to measure orientation of discontinuous fiber embedded in the polymer matrix from computerized tomography scan data". United States. doi:10.1177/0892705715584411.
@article{osti_1366363,
title = {Method to measure orientation of discontinuous fiber embedded in the polymer matrix from computerized tomography scan data},
author = {Gandhi, Umesh and Sebastian, De Boodt and Kunc, Vlastimil and Song, YuYang},
abstractNote = {Usage of discontinuous glass fibers in injection and compression molded resin components is rapidly increasing to improve their mechanical properties. Since added fiber contributes to more strength along the fiber direction compared to transverse direction, the mechanical properties of such components strongly depend on the fiber orientation. Thus it is important to estimate the fiber orientation distribution in such materials. Here, we are presenting recently developed method to estimate fiber orientation from 3D image of fibers generated using micro CT scan. Typically the 3D images from CT scan are very large and it becomes difficult to separate each fiber and extract end point information. In this paper a novel method to address this challenge is presented. The micro-CT images were broken into finite volume, reducing data size, and then each fiber was reduced to its own center line, further reducing the data size, using Mimics Innovation Suite (Materialise NV). These 3D centerlines were then used to quantify the 2nd order orientation tensor. Our results from the proposed method are compared with the measurements using well established industry standard approach called method of ellipses for validation. The key challenges in estimating the fiber orientation are identified and future improvements are proposed.},
doi = {10.1177/0892705715584411},
journal = {Journal of Thermoplastic Composite Materials},
issn = {0892-7057},
number = 12,
volume = 29,
place = {United States},
year = {2015},
month = {5}
}

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