- Home

- Archive

- ReJNDT

- Use of Tracer Fibers to Determine the Fiber Morphology in Short-FiberReinforced Plastics

<table border="0" cellpadding="10" cellspacing="0" width="100%"><tr><td align="center" valign="middle"><tr><td>NDT.net Issue: <a href="/search/docs.php3?issue=1&amp;date=2025-11-01&amp;showForm=" title="more of this">2025-11</a><br/><a href="/search/docs.php3?MainSource=373" title="more of this">Selected Papers from the DGZfP Annual Conference 2025 (ReJNDT )</a><br/><font size="-1"><font color="#aaaaaa"> Special Issue of Research and Review Journal of Nondestructive Testing  (ReJNDT) ISSN 2941-4989 | <a href="/search/docs.php3?showForm=off&amp;MainSource=373&amp;PubVol=&amp;PubNo=" title="more of this"></a></font></font> <tr><td><tr><td><hr/><h1 class="title">Use of Tracer Fibers to Determine the Fiber Morphology in Short-FiberReinforced Plastics</h1>Mike Kornely<a href="#" onclick="alert('mike.kornely@ikt.uni-stuttgart.de (may not be valid)'); return false;"><img border="0" hspace="2" src="..//pic/mail.gif" width="16"/></a><a href="/search/docs.php3?AuthorID=41939&amp;showForm=off" target="_parent" title="17 more articles"><img border="0" hspace="2" src="/pic/html2.svg" width="14"/><sup><font class="ssmall">17</font></sup></a>, Marc Kreutzbruck<a href="#" onclick="alert('marc.kreutzbruck@ikt.uni-stuttgart.de (may not be valid)'); return false;"><img border="0" hspace="2" src="..//pic/mail.gif" width="16"/></a><a href="/search/docs.php3?AuthorID=9557&amp;showForm=off" target="_parent" title="187 more articles"><img border="0" hspace="2" src="/pic/html2.svg" width="14"/><sup><font class="ssmall">187</font></sup></a><span style="line-height:1.2;font-size:12px;"><br/>University of Stuttgart<a href="/search/docs.php3?instID=1068&amp;showForm=off" target="_parent" title="377 more articles"><img border="0" hspace="2" src="/pic/html2.svg" width="14"/><sup><font class="ssmall">377</font></sup></a>, Stuttgart , Germany</span><p><div style="line-height:1.4;'"><b>Abstract:</b> While the use of contrast agents in in-vitro radiology is a typical procedure in medical diagnostics, their use in 
industrial testing is practically non-existent. In addition to the challenging implementation and high costs, the use of contrast media in NDT, in contrary to medical applications, is also limited by a variety of alternative methods for solving the inspection task. One  application in which contrast agents in the form of tracer fibers could be useful in the future are short and long fiber-reinforced plastics. Conventionally used reinforcing fibers have a very small diameter (7 to 20 µm) and a low contrast to the plastic matrix, which is why high magnifications are necessary in computed tomography (CT) imaging to resolve individual fibers. On the other hand, the fiber morphology (fiber  orientation, fiber length and fiber content) has a very high influence on the component strength and stiffness. 
Therefore, knowledge of fiber morphology is essential for the design of fiber-reinforced plastics. Microcomputed tomography can achieve the required high resolutions for structures smaller than 10 µm, but the analyzed component sample must only be a few millimetres in size to ensure sufficiently high spatial and contrast resolution. 
In this work the use of tracer fibers is intended to overcome this limit in component volume. For a practical application strongly attenuating AR glass fibers are used for the investigations, which were homogeneously distributed in the plastic in addition to the reinforcing fibers during the manufacturing process. The investigations show that at a concentration of 0.1 vol-% of tracer fibers can map the fiber orientation very well and even provide sufficient information about the fiber length distribution. The article highlights the possibilities and limitations of this approach and shows how the use of these tracer fibers can lead to an increase in the field of view by the factor of 5 and also leads to a significant reduction in computing time.</div><br/><p><b>Keywords: </b> <a href="/search/docs.php3?KeywordID=3587">Computed Tomography</a> (420), <a href="/search/docs.php3?KeywordID=11547">field of view</a> (3), <a href="/search/docs.php3?KeywordID=22284">fiber-reinforced plastics</a> (3), <a href="/search/docs.php3?KeywordID=25482">Fiber Morphology</a> (2), Tracerfibers<br/>*<font class="small"><i>Keywords are freely formed keywords from the authors and thus you may <a href="docs.php3">Search</a> also for similar terms.</i></font><a name="file"></a><br/><br/><b>View:</b> <a href="/article/rejndt/3_2/papers/1304_manuscript.pdf" onclick="ga('send','event','archive','click',' docID=31939 | ReJNDT  | source=docs | link=article/rejndt/3_2/papers/1304_manuscript.pdf')" target="_blank"><img border="0" src="/pic/PDF.svg" title="1.1MB | id=31939 " width="30"/> </a> <hr/><a href="/forum/post.php?forenID=0&amp;post=1&amp;DocID=31939&amp;DocGroup=1&amp;docTitle=Use of Tracer Fibers to Determine the Fiber Morphology in Short-FiberReinforced Plastics" target="_parent" title="Comments or Questions?"><span style="padding-left: 2px;cursor: hand;color:#ffffff;background-color:#477189;font-size:13px; margin: 3px; padding: 3px;border-radius:4px"><img border="0" src="/pic/forum.png"/>Comments or Questions?</span></a><br/><br/><b>Share:</b><dd>
<input id="31939link" type="hidden" value="https://www.ndt.net/?id=31939"/><a href="#" onclick="copyToClipBoard('31939link')"><img border="0" src="/pic/ShareLink.svg" width="25"/></a>
<a href="mailto:?subject=Use of Tracer Fibers to Determine the Fiber Morphology in Short-FiberReinforced Plastics&amp;Body=I%20would%20like%20to%20share%20with%20you%20the%20following%20article%20of%20NDT.net%20Database.%0A%0AUse of Tracer Fibers to Determine the Fiber Morphology in Short-FiberReinforced Plastics%0ABy  Kornely, Mike, Kornely, Mike; Kreutzbruck, Marc Institut für Kunststofftechnik University of Stuttgart,  ...%0ADate published%3A%202025-11-01%0ALink:%20https://www.ndt.net/?id=31939" title="Email"><img border="0" src="/pic/ShareEmail.svg" width="25"/></a>
<a href="https://www.linkedin.com/shareArticle?mini=true&amp;url=https%3A%2F%2Fwww.ndt.net%2F%3Fid%3D31939&amp;title=Use of Tracer Fibers to Determine the Fiber Morphology in Short-FiberReinforced Plastics&amp;summary=By  Kornely, Mike, Kornely, Mike; Kreutzbruck, Marc Institut für Kunststofftechnik University of Stuttgart, &amp;source=www.ndt.net" target="_blank" title="Share on LinkedIn"><img border="0" src="/pic/LinkedIn.svg" width="25"/></a>
<a href="https://www.facebook.com/sharer.php?u=https%3A%2F%2Fwww.ndt.net%2F%3Fid%3D31939" target="_blank" title="Share on Facebook"><img border="0" src="/pic/Facebook.svg" width="25"/></a>
<!---<br><a href="https://twitter.com/home?status=I%20would%20like%20to%20share%20with%20you%20the%20following%20article%20of%20NDT.net%20Database.%0A%0AUse of Tracer Fibers to Determine the Fiber Morphology in Short-FiberReinforced Plastics%0Ahttps%3A%2F%2Fwww.ndt.net%2F%3Fid%3D31939" target=_blank><img src="../pic/twitter.png" border=0 ></a>--->
<input id="31939doi" type="hidden" value="doi.org/10.58286/31939"/><a href="#" onclick="copyToClipBoard('31939doi')" title="Copy DOI"><img border="0" src="\pic/doi_icon.svg" width="25"/></a>
</dd><b>Cite</b>:<dd>Kornely, M., &amp; Kreutzbruck, M. (2025). Use of Tracer Fibers to Determine the Fiber Morphology in Short-FiberReinforced Plastics. Selected Papers from the DGZfP Annual Conference 2025. <i>Research and Review Journal of Nondestructive Testing</i> . https://doi.org/10.58286/31939</dd><b>Copyright</b>:<dd>©2025 The Authors under License CC-BY-4.0</dd><p><b>Published:</b> 1 Nov 2025 </p><tr><td><table><tr><td colspan="2" style="border-top:1px #aaaaaa solid; border-bottom: 1px solid #eeeeee; background-color:#f8f8f8;" valign="top">More from "<b>Mike Kornely</b>" (5 of 16)<tr><td nowrap="" valign="top">2026-03 <td valign="top"><a href="/search/docs.php3?id=32617">Advanced fiber morphology determination in short fiber reinforced plastics using tracer fibers</a> </td></td></tr></td><tr><td nowrap="" valign="top">2025-08 <td valign="top"><a href="/search/docs.php3?id=31566">Highly attenuating tracer fibers for fiber orientation determination in short-fiber reinforced plastics</a> </td></td></tr></tr></table></td><tr><td nowrap="" valign="top">2025-06 <td valign="top"><a href="/search/docs.php3?id=31240">Charakterisierung der Strömungen in der Extrusionseinheit von FFF-Druckern mittels X-ray Particle Tracking Velocimetry</a> </td></td></tr></tr></p></p></td><tr><td nowrap="" valign="top">2025-02 <td valign="top"><a href="/search/docs.php3?id=30768">X-Ray imaging method for in-situ study of particle-laden flows</a> </td></td></tr></tr></td><tr><td nowrap="" valign="top">2025-02 <td valign="top"><a href="/search/docs.php3?id=30728">Highly attenuating tracer fibers for fiber orientation determination in short-fiber-reinforced plastics</a> </td></td></tr></tr></td><tr><td>...<td align="right" valign="top"><img border="0" src="/pic/Articles.svg" width="20"/> <a href="/search/docs.php3?showForm=OFF&amp;MainSource=-1&amp;AuthorID=41939">All 16 Details &gt;</a><tr><td colspan="2" valign="top"><b>Co-Authored mostly with: </b><span style="white-space: nowrap;"><a href="/search/docs.php3?AuthorID=41939&amp;restrict=authors&amp;searchmode=Phrase&amp;SearchDocs=Kreutzbruck" title=" Marc Kreutzbruck "><img border="0" hspace="2" src="/pic/html2.svg" width="14"/>M. Kreutzbruck</a></span> <span style="white-space: nowrap;"><a href="/search/docs.php3?AuthorID=41939&amp;restrict=authors&amp;searchmode=Phrase&amp;SearchDocs=Ehrler" title=" Julian Ehrler "><img border="0" hspace="2" src="/pic/html2.svg" width="14"/>J. Ehrler</a></span> <span style="white-space: nowrap;"><a href="/search/docs.php3?AuthorID=41939&amp;restrict=authors&amp;searchmode=Phrase&amp;SearchDocs=Kattinger" title=" Julian Kattinger "><img border="0" hspace="2" src="/pic/html2.svg" width="14"/>J. Kattinger</a></span> <span style="white-space: nowrap;"><a href="/search/docs.php3?AuthorID=41939&amp;restrict=authors&amp;searchmode=Phrase&amp;SearchDocs=Bonten" title=" Christian Bonten "><img border="0" hspace="2" src="/pic/html2.svg" width="14"/>C. Bonten</a></span> <span style="white-space: nowrap;"><a href="/search/docs.php3?AuthorID=41939&amp;restrict=authors&amp;searchmode=Phrase&amp;SearchDocs=Chung" title=" Phi-Long Chung "><img border="0" hspace="2" src="/pic/html2.svg" width="14"/>P. Chung</a></span> <br/><br/></td></tr></td><tr><td colspan="2" style="border-top:1px #aaaaaa solid; border-bottom: 1px solid #eeeeee; background-color:#f8f8f8;" valign="top">More from "<b>Marc Kreutzbruck</b>" (5 of 186)<tr><td nowrap="" valign="top">2026-03 <td valign="top"><a href="/search/docs.php3?id=32589">In-situ investigation of fiber orientation and behavior in flowing polymer melts</a> </td></td></tr></td><tr><td nowrap="" valign="top">2026-03 <td valign="top"><a href="/search/docs.php3?id=32617">Advanced fiber morphology determination in short fiber reinforced plastics using tracer fibers</a> </td></td></tr></tr></td><tr><td nowrap="" valign="top">2026-01 <td valign="top"><a href="/search/docs.php3?id=32423">Frequenzauswertung bei der Luftultraschallprüfung von Klebverbindungen</a> </td></td></tr></tr></tr></td><tr><td nowrap="" valign="top">2025-11 <td valign="top"><a href="/search/docs.php3?id=31930">Material Characterization of Fiber-Reinforced Composites Using AirCoupled Ultrasonic Polar Scans</a> </td></td></tr><tr><td nowrap="" valign="top">2025-11 <td valign="top"><a href="/search/docs.php3?id=31942">Testing Adhesive Bonded joints using Air-coupled Ultrasound</a> </td></td></tr><tr><td>...<td align="right" valign="top"><img border="0" src="/pic/Articles.svg" width="20"/> <a href="/search/docs.php3?showForm=OFF&amp;MainSource=-1&amp;AuthorID=9557">All 186 Details &gt;</a><tr><td colspan="2" valign="top"><b>Co-Authored mostly with: </b><span style="white-space: nowrap;"><a href="/search/docs.php3?AuthorID=9557&amp;restrict=authors&amp;searchmode=Phrase&amp;SearchDocs=Brekow" title=" Gerhard Brekow "><img border="0" hspace="2" src="/pic/html2.svg" width="14"/>G. Brekow</a></span> <span style="white-space: nowrap;"><a href="/search/docs.php3?AuthorID=9557&amp;restrict=authors&amp;searchmode=Phrase&amp;SearchDocs=Solodov" title=" Igor Solodov "><img border="0" hspace="2" src="/pic/html2.svg" width="14"/>I. Solodov</a></span> <span style="white-space: nowrap;"><a href="/search/docs.php3?AuthorID=9557&amp;restrict=authors&amp;searchmode=Phrase&amp;SearchDocs=Kornely" title=" Mike Kornely "><img border="0" hspace="2" src="/pic/html2.svg" width="14"/>M. Kornely</a></span> <span style="white-space: nowrap;"><a href="/search/docs.php3?AuthorID=9557&amp;restrict=authors&amp;searchmode=Phrase&amp;SearchDocs=Rittmann" title=" Johannes Rittmann "><img border="0" hspace="2" src="/pic/html2.svg" width="14"/>J. Rittmann</a></span> <span style="white-space: nowrap;"><a href="/search/docs.php3?AuthorID=9557&amp;restrict=authors&amp;searchmode=Phrase&amp;SearchDocs=Ehrler" title=" Julian Ehrler "><img border="0" hspace="2" src="/pic/html2.svg" width="14"/>J. Ehrler</a></span> <br/><br/></td></tr></td><tr><td colspan="2" style="border-top:1px #aaaaaa solid; border-bottom: 1px solid #eeeeee; background-color:#f8f8f8;" valign="top">More from "<b>University of Stuttgart</b>" (5 of 376) <tr><td nowrap="" valign="top">2026-03<td valign="top"> <a href="/search/docs.php3?id=32564">Multi-view Diffusion Model with Gaussian Splatting in Projection Domain for Limited Angle Reconstruction</a></td></td></tr></td><tr><td nowrap="" valign="top">2026-03<td valign="top"> <a href="/search/docs.php3?id=32565">Improvement of Fine Structure Preservation in Denoising by Self-Supervised Learning Compared to Supervised Learning</a></td></td></tr></tr></td><tr><td nowrap="" valign="top">2026-03<td valign="top"> <a href="/search/docs.php3?id=32576">Enhanced Energy Resolution of Synchrotron Multispectral CT based on a Silicon Wafer Edge as Spectral‑Splitting Optics</a></td></td></tr><tr><td nowrap="" valign="top">2026-03<td valign="top"> <a href="/search/docs.php3?id=32588">Compensating Projection Interpolation Artifacts in Sparse-View CT using a Two- Stage CNN with learnable Upscaling</a></td></td></tr><tr><td nowrap="" valign="top">2026-03<td valign="top"> <a href="/search/docs.php3?id=32589">In-situ investigation of fiber orientation and behavior in flowing polymer melts</a></td></td></tr><tr><td>...<td align="right"><img border="0" src="/pic/Articles.svg" width="20"/> <a href="/search/docs.php3?showForm=OFF&amp;MainSource=-1&amp;instID=1068">All 376 Details &gt;</a><tr><td colspan="2" valign="top"><b>Co-Authored mostly with:</b> <span style="white-space: nowrap;"><a href="/search/docs.php3?instID=1068&amp;restrict=inst&amp;searchmode=Phrase&amp;SearchDocs=BAM Federal Institute for Materials Research and Testing" title=" BAM Federal Institute for Materials Research and Testing "><img border="0" hspace="2" src="/pic/html2.svg" width="14"/>BAM Federal Institut</a>... </span> <span style="white-space: nowrap;"><a href="/search/docs.php3?instID=1068&amp;restrict=inst&amp;searchmode=Phrase&amp;SearchDocs=RWTH Aachen University" title=" RWTH Aachen University "><img border="0" hspace="2" src="/pic/html2.svg" width="14"/>RWTH Aachen Universi</a>... </span> <span style="white-space: nowrap;"><a href="/search/docs.php3?instID=1068&amp;restrict=inst&amp;searchmode=Phrase&amp;SearchDocs=Fraunhofer-Institute for Non-Destructive Testing (IZFP)" title=" Fraunhofer-Institute for Non-Destructive Testing (IZFP) "><img border="0" hspace="2" src="/pic/html2.svg" width="14"/>Fraunhofer-Institute</a>... </span> <span style="white-space: nowrap;"><a href="/search/docs.php3?instID=1068&amp;restrict=inst&amp;searchmode=Phrase&amp;SearchDocs=Fraunhofer Institute for Ceramic Technologies and Systems IKTS" title=" Fraunhofer Institute for Ceramic Technologies and Systems IKTS "><img border="0" hspace="2" src="/pic/html2.svg" width="14"/>Fraunhofer Institute</a>... </span> <span style="white-space: nowrap;"><a href="/search/docs.php3?instID=1068&amp;restrict=inst&amp;searchmode=Phrase&amp;SearchDocs=Fraunhofer Institute for Integrated Circuits (IIS)" title=" Fraunhofer Institute for Integrated Circuits (IIS) "><img border="0" hspace="2" src="/pic/html2.svg" width="14"/>Fraunhofer Institute</a>... </span> <br/><br/></td></tr></td></td></tr></tr></tr></table>