Strength Determination of Composite Flexible Joint

Abstract:

This thesis deals with the design of a joint for composite flexible elements using an integrated connection. For the verification of the selected layout, a wrapping loop was chosen as a simplified member, which was created on a special form designed for these samples. The material used was unidirectional fibreglass and epoxy resin. These samples were then compared using quasi-static tensile and compression tests. The tests were carried out with the Zwick-Roell Z050 machine. The resulting data of the experiment were then compared with the data obtained from numerical simulations using the finite element system Siemens NX 10 and SIMULIA Abaqus 6.13. 3D strength criteria Maximum stress and direct-mode strength criterion LaRC04 were used for evaluation.

• Periodical: Applied Mechanics and Materials (Volume 827)
• Pages: 149-156
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.827.149
• Online since: February 2016
• Authors: František Sedláček*, Václava Lašová, Radek Kottner
• Keywords: FEM, Numerical Simulation, Quasi-Static Experiment, Unidirectional Glass Fibre Composite, Wrapped Loop

References

[1] R. Kotner, J. Krystek, R. Zemčík, J. Lomberský, R. Hynek, Strength Analysis of Carbon Fiber-reinforced Plastic Coupling for Tensile and Compressive Loading Transmission, Collection of Technical Papers - Structures, Structural Dynamics and Materials Conference, 2011, roč. 2011-1982, č. April 2011, s. 1-12. ISSN: 0273-4508.

DOI: 10.2514/6.2011-1982

[2] J. Krystek, R. Kottner, Load capacity prediction of carbon or glass fibre reinforced plastic part of wrapped pin joint. Materiali in Tehnologije, 2015, roč. 49, č. 6. ISSN: 1580-2949.

DOI: 10.17222/mit.2014.289

[3] V.V. Valery, V. Morozov Evgeny, Advanced Mechanics of Composite Materials and Structural elements, 3rd Edition. ISBN: 978-0-08-098231-1, Elsevier, Oxford, (2013).

[4] Talreja Ramesh, Singh V. Chandra, Damage and Failure of Composite Materials, ISBN 978-0-521-81942-8, Cambridge University Press, Cambridge, (2012).

DOI: 10.1017/s0001924000011039

[5] S.T. Pinho, C. G. Dávila, P. P. Camanho, L. Iannucci, P. Robinson, Failure Models and Criteria for FRP Under In-Plane or Three-Dimensional Stress States Including Shear Non-Linearity. Research report, NASA/TM-2005-213530, NASA Langley Research Center, 2005, 69 p.

[6] R. Kottner, L. Bek, J. Krystek, T. Kroupa, V. Lašová, Failure analysis of pin joint of carbon/epoxy composite plate. Advanced Materials Research, 2012, roč. 634-638, č. 1, s. 2796-2799. ISSN: 1662-8985.

DOI: 10.4028/www.scientific.net/amr.634-638.2796

[7] R. Kottner, Joining of Composite and Steel Machine Parts with Special Focus on Stiffness and Strength (in Czech), Ph.D. Dissertation, Dept. of Mechanics, Univ. of West Bohemia, Pilsen, Czech Republic, (2007).

DOI: 10.46720/f2020-pif-044

[8] F. Sedláček, Flexible joints from composite materials. ISBN: 978-80-261-0509-1, SVOČ - FST, Plzeň, Západočeská univerzita v Plzni, (2015).