Comparison of interlaminar and interfacial shear strength with recycled carbon fiber

Jesse Savolainen, Essi Sarlin, Sarianna Palola

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

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Testing the interlaminar shear strength (ILSS) of composites using a short beam shear (SBS) test takes time. Micro-scale interfacial shear strength values (IFSS) need to be scaled back to the macro-level if a more reliable picture of the composite behavior on the right scale is desired. Here, the objective is to find out what kind of relation the ILSS and the IFSS values have for recycled carbon fibers (rCF) and epoxy matrix. Factors affecting the reliability of both tests are considered.

A slope-based method was used to obtain the IFSS values from the micro-scale results. The microbond test gave a 43.6 MPa IFSS value and the SBS test a 36.4 MPa ILSS value. There were a lot of variables associated with the SBS for rCF, due to which there is uncertainty in the results.
The data from the microbond tests were more reliable due to the high sampling volume.
Original languageEnglish
Title of host publicationProceedings of the 20th European Conference on Composite Materials
Subtitle of host publicationComposites Meet Sustainability
EditorsAnastasios P. Vassilopoulus, Véronique Michaud
Place of PublicationLausanne, Switzerland
Number of pages7
ISBN (Electronic)978-2-9701614-0-0
Publication statusPublished - 2022
Publication typeB3 Article in conference proceedings
EventEuropean Conference on Composite Materials - Lausanne, Switzerland
Duration: 26 Jun 202230 Jun 2022


ConferenceEuropean Conference on Composite Materials


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