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Fatigue Strength of Laser Welded Joints of PP and PC Components

DOI: 10.4236/wjm.2018.86017, PP. 219-226

Keywords: Fatigue Strength, Welded Joints, Laser Welding, Reinforced Plastics

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The paper describes research of fatigue properties of laser welded joints of PP and PC reinforced composites. Welded specimens were tested on dynamic testing machine to obtain data for fatigue strength and fatigue life evaluation. Materials used for testing were PP and PC plastics filled with various amounts of glass fibers. Nine combinations of PP specimens and 6 combinations of PC specimens were welded and loaded on testing machine by fluctuating stress with constant stress ratio. Presented results include fatigue strength of welded joints and also the S-N curves based on experimental data and theory are derived.


[1]  Yousefpour, A., Hojjati, M. and Immarigeon, J.P. (2004) Fusion Bonding/Welding of Thermoplastic Composites. Journal of Thermoplastic Composite Materials, 17, 303-309.
[2]  Da Costa, A.P., et al. (2012) A Review of Welding Technologies for Thermoplastic Composites in Aerospace Applications. Journal of Aerospace Technology and Management, 4, 256-265.
[3]  Fernandez, I. and Bersee, H.E.N. (2010) Ultrasonic Welding of Advanced Thermoplastic Composites: An Investigation of Energy Directing Surfaces. Advances in Polymer Technology, 29, 112-121.
[4]  Stavrov, D. and Bersee, H.E.N. (2005) Resistance Welding of Thermoplastic Composites—An Overview. Composites Part A—Applied Science and Manufacturing, 36, 39-54.
[5]  Broughton, W.R., Mera, R.D. and Hinopoulos, G. (1999) Cyclic Fatigue Testing of Adhesive Joints. NPL Report CMMT(A) 191, National Physical Laboratory, UK.
[6]  De Baere, I., et al. (2012) Fatigue Behavior of Infrared Welded Joints in Fibre Reinforced Thermoplastics. Proceedings of 10th International Conference on Durability of Composite Systems, Ghent University, Ghent.
[7]  Dubé, M., et al. (2008) Fatigue Performance Characterization of Resistance-Welded Thermoplastic Composites. Composites Science and Technology, 68, 1759-1765.
[8]  Votrubec, V., et al. (2017) Strength of Laser Welded Joints of Polypropylene Composites. IOP Conference Series: Materials Science and Engineering, 264.
[9]  Gay, D. (2014) Composite Materials: Design and Applications. 3rd Edition, CRC Press, Boca Raton.


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