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Experimental assesment of infrared welded bonds using lapshear, double cantilever beam and end notch flexure tests for a carbon fabric reinforced thermoplastic

Klaas Allaer UGent, Ives De Baere UGent, Stefan Jacques UGent, Wim Van Paepegem UGent and Joris Degrieck UGent (2012) 15th International Conference on Experimental Mechanics, Proceedings.
abstract
High performance composites, such as carbon-fibre reinforced plastics (CFRP), are increasingly being used in high engineering industries. Their wide acceptance introduces an issue regarding the bonding of these materials and their mechanical behaviour. As this reinforced thermoplastic is not easily bonded with adhesives due to the chemical inertness, the fusion bonding process could be used to make a structural bond. In this paper, the interlaminar fracture behaviour of infrared welded bonds was investigated based on experimental analysis. The material used, is a 5-harness satin-weave (5HS) carbon fabric-reinforced polyphenylene sulphide (PPS). Laminates were welded using infrared light and a delamination was introduced by a Kapton film. Welding parameters were first optimized using lapshear tests, then mode I and mode II tests were conducted to determine the fracture toughness behaviour of the welded bonds. Tests under mode I loading were carried out using double cantilever beam (DCB) specimens whereas for mode II loading, three-point end notched flexure (ENF) specimens were considered. Crack growth under mode I and mode II loading conditions was observed to be unstable resulting in a sawtooth like load-displacement response, but nevertheless, values for the fracture toughness were derived.
Please use this url to cite or link to this publication:
author
organization
year
type
conference
publication status
published
subject
keyword
FRACTURE-TOUGHNESS, POLYMER-MATRIX COMPOSITES, MODE-I, Infrared welding, interlaminar fracture toughness, DCB, ENF
in
15th International Conference on Experimental Mechanics, Proceedings
editor
JF Silva Gomes and Mario AP Vaz
pages
9 pages
publisher
INEGI
place of publication
Porto, Portugal
conference name
15th International Conference on Experimental Mechanics (ICEM15 - 2012)
conference location
Porto, Portugal
conference start
2012-07-22
conference end
2012-07-27
Web of Science type
Proceedings Paper
Web of Science id
000320722900091
ISBN
9789728826260
language
English
UGent publication?
yes
classification
P1
additional info
cd rom
copyright statement
I have transferred the copyright for this publication to the publisher
id
2973296
handle
http://hdl.handle.net/1854/LU-2973296
date created
2012-08-20 16:53:26
date last changed
2013-09-26 14:40:53
@inproceedings{2973296,
  abstract     = {High performance composites, such as carbon-fibre reinforced plastics (CFRP), are increasingly being used in high engineering industries. Their wide acceptance introduces an issue regarding the bonding of these materials and their mechanical behaviour. As this reinforced thermoplastic is not easily bonded with adhesives due to the chemical inertness, the fusion bonding process could be used to make a structural bond. In this paper, the interlaminar fracture behaviour of infrared welded bonds was investigated based on experimental analysis. The material used, is a 5-harness satin-weave (5HS) carbon fabric-reinforced polyphenylene sulphide (PPS). Laminates were welded using infrared light and a delamination was introduced by a Kapton film. Welding parameters were first optimized using lapshear tests, then mode I and mode II tests were conducted to determine the fracture toughness behaviour of the welded bonds. Tests under mode I loading were carried out using double cantilever beam (DCB) specimens whereas for mode II loading, three-point end notched flexure (ENF) specimens were considered. Crack growth under mode I and mode II loading conditions was observed to be unstable resulting in a sawtooth like load-displacement response, but nevertheless, values for the fracture toughness were derived.},
  author       = {Allaer, Klaas and De Baere, Ives and Jacques, Stefan and Van Paepegem, Wim and Degrieck, Joris},
  booktitle    = {15th International Conference on Experimental Mechanics, Proceedings},
  editor       = {Silva Gomes, JF and Vaz, Mario AP},
  isbn         = {9789728826260},
  keyword      = {FRACTURE-TOUGHNESS,POLYMER-MATRIX COMPOSITES,MODE-I,Infrared welding,interlaminar fracture toughness,DCB,ENF},
  language     = {eng},
  location     = {Porto, Portugal},
  pages        = {9},
  publisher    = {INEGI},
  title        = {Experimental assesment of infrared welded bonds using lapshear, double cantilever beam and end notch flexure tests for a carbon fabric reinforced thermoplastic},
  year         = {2012},
}

Chicago
Allaer, Klaas, Ives De Baere, Stefan Jacques, Wim Van Paepegem, and Joris Degrieck. 2012. “Experimental Assesment of Infrared Welded Bonds Using Lapshear, Double Cantilever Beam and End Notch Flexure Tests for a Carbon Fabric Reinforced Thermoplastic.” In 15th International Conference on Experimental Mechanics, Proceedings, ed. JF Silva Gomes and Mario AP Vaz. Porto, Portugal: INEGI.
APA
Allaer, K., De Baere, I., Jacques, S., Van Paepegem, W., & Degrieck, J. (2012). Experimental assesment of infrared welded bonds using lapshear, double cantilever beam and end notch flexure tests for a carbon fabric reinforced thermoplastic. In J. Silva Gomes & M. A. Vaz (Eds.), 15th International Conference on Experimental Mechanics, Proceedings. Presented at the 15th International Conference on Experimental Mechanics (ICEM15 - 2012), Porto, Portugal: INEGI.
Vancouver
1.
Allaer K, De Baere I, Jacques S, Van Paepegem W, Degrieck J. Experimental assesment of infrared welded bonds using lapshear, double cantilever beam and end notch flexure tests for a carbon fabric reinforced thermoplastic. In: Silva Gomes J, Vaz MA, editors. 15th International Conference on Experimental Mechanics, Proceedings. Porto, Portugal: INEGI; 2012.
MLA
Allaer, Klaas, Ives De Baere, Stefan Jacques, et al. “Experimental Assesment of Infrared Welded Bonds Using Lapshear, Double Cantilever Beam and End Notch Flexure Tests for a Carbon Fabric Reinforced Thermoplastic.” 15th International Conference on Experimental Mechanics, Proceedings. Ed. JF Silva Gomes & Mario AP Vaz. Porto, Portugal: INEGI, 2012. Print.