Dynamic mode II delamination in through thickness reinforced composites

Mehdi Yasaee; Galal Mohamed; Antonio Pellegrino; Nik Petrinic; Stephen R. Hallett

doi:10.1007/978-3-319-42195-7_13

Dynamic mode II delamination in through thickness reinforced composites

Mehdi Yasaee, Galal Mohamed, Antonio Pellegrino, Nik Petrinic, Stephen R. Hallett

Research output: Chapter or section in a book/report/conference proceeding › Chapter in a published conference proceeding

1 Citation (SciVal)

Abstract

Through thickness reinforcement (TTR) technologies have been shown to provide effective delamination resistance for laminated composite materials. The addition of this reinforcement allows for the design of highly damage tolerant composite structures, specifically when subjected to impact events. The aim of this investigation was to understand the delamination resistance of Z-pinned composites when subjected to increasing strain rates. Z-pinned laminated composites were manufactured and tested using three point end notched flexure (3ENF) specimens subjected to increasing loading rates from quasi-static (~0 m/s) to high velocity impact (5 m/s), using a range of test equipment including drop weight impact tower and a split Hopkinson bar (SHPB). Using a high speed impact camera and frame by frame pixel tracking of the strain rates, delamination velocities as well as the apparent fracture toughness of the Z-pinned laminates were measured and analysed. Experimental results indicate that there is a transition in the failure morphology of the Z-pinned laminates from quasi-static to high strain rates. The fundamental physical mechanisms that generate this transition are discussed.

Original language	English
Title of host publication	Fracture, Fatigue, Failure and Damage Evolution - Proceedings of the 2016 Annual Conference on Experimental and Applied Mechanics
Editors	Kavan Hazeli, Garrett Pataky, Jay Carroll, Alison M. Beese, Alan T. Zehnder, Ryan B. Berke, Matthew Cavalli, Shuman Xia
Place of Publication	Cham, Switzerland
Publisher	Springer
Pages	91-97
Number of pages	7
ISBN (Print)	9783319421940
DOIs	https://doi.org/10.1007/978-3-319-42195-7_13
Publication status	Published - 21 Sept 2016
Event	Annual Conference and Exposition on Experimental and Applied Mechanics, 2016 - Orlando, USA United States Duration: 6 Jun 2016 → 9 Jun 2016

Publication series

Name	Conference Proceedings of the Society for Experimental Mechanics Series
Volume	8
ISSN (Print)	2191-5644
ISSN (Electronic)	2191-5652

Conference

Conference	Annual Conference and Exposition on Experimental and Applied Mechanics, 2016
Country/Territory	USA United States
City	Orlando
Period	6/06/16 → 9/06/16

Funding

The authors would like to acknowledge Rolls-Royce plc for their support of this research through the Composites University Technology Centre (UTC) at the University of Bristol, UK.

Funders	Funder number
University of Bristol
University of Bristol
University Transportation Centers
Rolls Royce

Keywords

Damage tolerance
Delamination testing
Impact
Strain rate
Through thickness reinforcement
Z-pins

ASJC Scopus subject areas

General Engineering
Computational Mechanics
Mechanical Engineering

Access to Document

10.1007/978-3-319-42195-7_13

Cite this

Yasaee, M., Mohamed, G., Pellegrino, A., Petrinic, N., & Hallett, S. R. (2016). Dynamic mode II delamination in through thickness reinforced composites. In K. Hazeli, G. Pataky, J. Carroll, A. M. Beese, A. T. Zehnder, R. B. Berke, M. Cavalli, & S. Xia (Eds.), Fracture, Fatigue, Failure and Damage Evolution - Proceedings of the 2016 Annual Conference on Experimental and Applied Mechanics (pp. 91-97). (Conference Proceedings of the Society for Experimental Mechanics Series; Vol. 8). Springer. https://doi.org/10.1007/978-3-319-42195-7_13

Dynamic mode II delamination in through thickness reinforced composites. / Yasaee, Mehdi; Mohamed, Galal; Pellegrino, Antonio et al.
Fracture, Fatigue, Failure and Damage Evolution - Proceedings of the 2016 Annual Conference on Experimental and Applied Mechanics. ed. / Kavan Hazeli; Garrett Pataky; Jay Carroll; Alison M. Beese; Alan T. Zehnder; Ryan B. Berke; Matthew Cavalli; Shuman Xia. Cham, Switzerland: Springer, 2016. p. 91-97 (Conference Proceedings of the Society for Experimental Mechanics Series; Vol. 8).

Research output: Chapter or section in a book/report/conference proceeding › Chapter in a published conference proceeding

Yasaee, M, Mohamed, G, Pellegrino, A, Petrinic, N & Hallett, SR 2016, Dynamic mode II delamination in through thickness reinforced composites. in K Hazeli, G Pataky, J Carroll, AM Beese, AT Zehnder, RB Berke, M Cavalli & S Xia (eds), Fracture, Fatigue, Failure and Damage Evolution - Proceedings of the 2016 Annual Conference on Experimental and Applied Mechanics. Conference Proceedings of the Society for Experimental Mechanics Series, vol. 8, Springer, Cham, Switzerland, pp. 91-97, Annual Conference and Exposition on Experimental and Applied Mechanics, 2016, Orlando, USA United States, 6/06/16. https://doi.org/10.1007/978-3-319-42195-7_13

Yasaee M, Mohamed G, Pellegrino A, Petrinic N, Hallett SR. Dynamic mode II delamination in through thickness reinforced composites. In Hazeli K, Pataky G, Carroll J, Beese AM, Zehnder AT, Berke RB, Cavalli M, Xia S, editors, Fracture, Fatigue, Failure and Damage Evolution - Proceedings of the 2016 Annual Conference on Experimental and Applied Mechanics. Cham, Switzerland: Springer. 2016. p. 91-97. (Conference Proceedings of the Society for Experimental Mechanics Series). doi: 10.1007/978-3-319-42195-7_13

Yasaee, Mehdi ; Mohamed, Galal ; Pellegrino, Antonio et al. / Dynamic mode II delamination in through thickness reinforced composites. Fracture, Fatigue, Failure and Damage Evolution - Proceedings of the 2016 Annual Conference on Experimental and Applied Mechanics. editor / Kavan Hazeli ; Garrett Pataky ; Jay Carroll ; Alison M. Beese ; Alan T. Zehnder ; Ryan B. Berke ; Matthew Cavalli ; Shuman Xia. Cham, Switzerland : Springer, 2016. pp. 91-97 (Conference Proceedings of the Society for Experimental Mechanics Series).

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Dynamic mode II delamination in through thickness reinforced composites

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