Reduced notch sensitivity in pseudo-ductile CFRP thin ply angle-ply laminates with central 0° plies
Source abstract
Abstract
This paper presents an experimental investigation on the unnotched and open-hole tensile behaviour of pseudo-ductile thin ply angle-ply carbon fibre/epoxy laminates with central 0° plies. Laminates with two different configurations of [±265/0]s and [±252/0]s were designed and tested under unnotched and open-hole tensile loading. Metal-like tensile stress-strain curves with a plateau were observed in both unnotched configurations. The open-hole net-section strength of the [±252/0]s laminate attained 96% of the unnotched “yield” strength. Digital image correlation and X-ray CT-scan images showed that the same damage mechanisms of central 0° ply fragmentation and local dispersed delamination observed in unnotched pseudo-ductile laminates were present in the open-hole specimens of the same configuration. These damage mechanisms caused stress redistribution around the hole and reduced the notch sensitivity in pseudo-ductile laminates under open-hole tensile loading. The main factors governing the open-hole performance are also discussed.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Mechanical Behavior of Composites · Structural Analysis and Optimization · Composite Structure Analysis and Optimization
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (30)
Show source-provided references
1. Enhancement of the mechanical properties of directly spun CNT fibers by chemical treatment10.1021/nn202685x ↗
2. On the in-plane mechanical properties of stainless steel fibre reinforced ductile composites10.1016/j.compscitech.2014.05.009 ↗
3. Ductile steel fibre composites with brittle and ductile matrices10.1016/j.compositesa.2014.02.006 ↗
4. The influence of weave architecture on the mechanical properties of self-reinforced polypropylene10.1016/j.compositesa.2013.06.015 ↗
5. Exploration of the potential for pseudo-ductility in thin ply CFRP angle-ply laminates via an analytical method10.1016/j.compscitech.2015.02.019 ↗
6. Pseudo-ductility and damage suppression of thin ply CFRP angle-ply laminates10.1016/j.compositesa.2014.11.004 ↗
7. Combining fibre rotation and fragmentation to achieve pseudo-ductile CFRP laminates10.1016/j.compstruct.2016.01.073 ↗
8. Wavy-ply sandwich with composite skins and crushable core for ductility and energy absorption10.1016/j.compstruct.2014.05.020 ↗
9. Design and characterisation of advanced pseudo-ductile unidirectional thin-ply carbon/epoxy-glass/epoxy hybrid composites10.1016/j.compstruct.2016.02.010 ↗
10. Demonstration of pseudo-ductility in high performance glass/epoxy composites by hybridisation with thin-ply carbon prepreg10.1016/j.compositesa.2013.04.006 ↗
11. Damage analysis of pseudo-ductile thin-ply UD hybrid composites – a new analytical method10.1016/j.compositesa.2014.11.006 ↗
12. Introducing ductility in hybrid carbon fibre/self-reinforced composites through control of the damage mechanisms10.1016/j.compstruct.2015.04.069 ↗
13. Pseudo-ductility in intermingled carbon/glass hybrid composites with highly aligned discontinuous fibres10.1016/j.compositesa.2015.02.014 ↗
14. Diao H, Bismarck A, Robinson P, Wisnom MR. Pseudo-ductile behaviour of unidirectional fibre reinforced polyamide-12 composite by intra-tow hybridization. In: ECCM16-16th European Conference on Composite Materials, Seville, Spain, 1–8; 2007.
15. Damage mechanics of composite materials: I-measurements of damage and strength10.1016/0266-3538(90)90077-I ↗
16. Morris CEH, DH. Role of delamination and damage development on the strength of thick notched laminates, delamination and debonding of materials. In: Johnson WS, editor. Am Soc Test Mater ASTM STP 876; 1985. p. 424–447.10.1520/STP36318S ↗
17. An experimental investigation into the tensile strength scaling of notched composites10.1016/j.compositesa.2006.07.008 ↗
18. Experimental studies of thin-ply laminated composites10.1016/j.compscitech.2006.06.008 ↗
19. Furtado C, Arteiro A, Catalanotti G, Xavier J, Camanho PP. Selective ply-level hybridisation for improved notched response of composite laminates. Compos Struct 2016;145:1–14.10.1016/j.compstruct.2016.02.050 ↗
20. Arteiro A, Catalanotti G, Xavier J, Camanho PP. Notched response of non-crimp fabric thin-ply laminates. Compos Sci Technol 2013;79:97–114.10.1016/j.compscitech.2013.02.001 ↗
21. Thin ply composites: experimental characterization and modeling of size-effects10.1016/j.compscitech.2014.06.027 ↗
22. Jalalvand M, Czél G, Wisnom MR. Reducing the notch sensitivity of quasi-isotropic layups using thin-ply hybrid laminates. In: Proceedings of the 30th Annual Technical Conference of the American Scociety for Composites 2015, East Lansing, Michigan, USA, 28–30th September; 2015.
23. Torayca. T300 Data Sheet; 2002. p. 6–7.
24. Nippon Graphite Fiber Corporation. Nippon Granoc Yarn YSH-A Series; 2010. p. 1–2.
25. ASTM International, West Conshohocken, PA, USA. Standard test method for tensile properties of polymer matrix composite materials, ASTM D3039/D3039M – 08; 2011.
26. Gill AF, Robinson P, Hitchings D. Measurement of damage progression in open hole tension tests. In: ICCM16 – 16th International Conference on Composite Materials, Tokyo, Japan, 3–7, 2007.
27. Stress concentration in a circular hole in composite plate10.1016/j.compstruct.2004.02.016 ↗
28. Tan · 1994
29. Properties TF. PYROFIL TM MR60H 24K; 2008.
30. Fuller JD, Jalalvand M, Wisnom MR. A pseudo ductile angle-ply sub-laminate approach for multidirectional thin-ply CFRP laminates. In: Proc ECCM-17, 17th Eur Conf Compos Mater 2016: 26–30.