The topic of the online workshop was "Measuring UD compression strength and the factors affecting it".
This event was the third in a series of online workshops focusing on composites strength, following on from previous events on defining strength in October 2020 and measuring tensile strength in March 2021.
A paper was presented, followed by a series of short presentations, and extensive discussion on the challenges of measuring this critical property. Around 100 people participated in the workshop.
A recording of the workshop can be watched on the Bristol Composite Institute's YouTube channel. The PowerPoint presentations and a paper summarising the topic are available for download via the links below.
Workshop Programme
Meeting introduction – Yentl Swolfs (KU Leuven)
Topic presentation:
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Measuring UD fibre direction compressive strength and the factors affecting it – Michael Wisnom (PDF, 423kB) (Bristol Composites Institute), Yentl Swolfs (KU Leuven) and Federico Paris (University of Seville)
5-minute presentations:
- Compression Testing of Advanced Composites and the Pursuit of the "Best Suited" Test Method – Dan Adams (PDF, 1,322kB) (Wyoming Test Fixtures)
- Adaptive buckling support to investigate the compressive properties of long and thin specimen – Bodo Fiedler (PDF, 694kB) (Hamburg University of Technology)
- Optimization of tab's geometry, based on stress singularities, for the compression strength evaluation of CFRP thick-laminates – Alberto Barroso (PDF, 711kB)(University of Seville)
- Determination of the longitudinal compressive strength of a carbon/epoxy UD ply considering bending, compressive and tensile tests – Frederic Laurin (PDF, 872kB) (ONERA)
- Testing of longitudinal compression failure stress with cross-ply composite laminates – Hao Cui (PDF, 4,217kB) (Northwestern Polytechnical University)
- Compressive failure of unidirectional carbon fibre composites from bending tests – Xun Wu (PDF, 1,063kB) (Bristol Composites Institute, University of Bristol)
- Experimental measurement of the compression strength of unidirectional carbon fiber composites – Lars Mikkelsen (PDF, 2,247kB) (Technical University of Denmark)
- Analysis of compressive behaviour in fiber direction of laminated composite structures in presence of matrix degradation – Christian Hochard (PDF, 2,113kB) (Aix Marseille University)
- Measuring UD compression strength and the factors affecting it – Costas Soutis (PDF, 1,013kB) (University of Manchester)
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