Enhancing mode I fracture resistance of aluminium-carbon fibre-reinforced polymer hybrid composites via boehmite crystallisation and through thickness reinforcement
Source abstract
Abstract
Abstract Hybrid aluminium-carbon fibre-reinforced polymer (Al-CFRP) composites are attracting increasing attention in high-tech aviation and automotive applications, but successfully joining them is challenging due to their differing physiochemical properties, and various surface pretreatments are applied to enhance their interfacial bonding. Herein, we develop a novel method to significantly enhance Al-CFRP bond strength by boehmite crystallisation of aluminium through thickness reinforcement (TTR) pins embedded in the CFRP matrix. The hybrid Al-CFRP joints were prepared using flat aluminium substrates and substrates with 1 mm diameter TTR pins, which were both pretreated with the boehmite crystallisation process and compared to conventional chemical etched, micro blasted, and untreated aluminium control surfaces assembled with CFRP layers in a double cantilever beam configuration for mode I testing. Results reveal that the boehmite crystallisation process can successfully grow a sea of nano needle structures on the flat aluminium surface, which significantly enhances interfacial bonding with the CFRP, leading to increases in fracture toughness of 70%, 250%, and 555% over chemical etched, micro blasted, and untreated control joints, respectively. The addition of aluminium TTR pins provide further reinforcement to the CFRP, and crystallisation of the pins increases the mode I fracture resistance of the Al-CFRP hybrid composite joints by over 1800% compared to joints made with untreated aluminium substrates. Graphical Abstract
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Research context
OpenAlex topics: Natural Fiber Reinforced Composites · Additive Manufacturing and 3D Printing Technologies · Mechanical Behavior of Composites
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References (43)
Show source-provided references
1. Parkes PN, Butler R, Meyer J, De Oliveira A (2014) Static strength of metal-composite joints with penetrative reinforcement. Compos Struct 118:250–256. https://doi.org/10.1016/j.compstruct.2014.07.01910.1016/j.compstruct.2014.07.019 ↗
2. Oshima S, Yoshimura A, Hirano Y, Ogasawara T (2018) Experimental method for mode I fracture toughness of composite laminates using wedge loaded double cantilever beam specimens. Compos Part A-Appl S 112:119–125. https://doi.org/10.1016/j.compositesa.2018.05.03610.1016/j.compositesa.2018.05.036 ↗
3. Feistauer EE (2019) Ultrasonic joining of through-the-thickness reinforced metal-composite hybrid structures. Dissertation, Technische Universität Hamburg. https://tore.tuhh.de/entities/publication/b20790ff-017e-408e-902e-07946039039b
4. Smith F (2005) Comeld™: an innovation in composite to metal joining. Mater Technol 20(2):91–96. https://doi.org/10.1080/10667857.2005.1175311710.1080/10667857.2005.11753117 ↗
5. Zhou Z, Wang Y, Chen C (2024) Thin porous Ni-foam enhanced CFRP/Al adhesive joint inserted by ultrasonic vibration. Polym Compos 1–14. https://doi.org/10.1002/pc.2904010.1002/pc.29040 ↗
6. Zhou Z, Chen C (2024) Failure analysis of CFRP/Al single lap adhesive joint with enhancing porous metal foam insert. Eng Fail Anal 165:108792. https://doi.org/10.1016/j.engfailanal.2024.10879210.1016/j.engfailanal.2024.108792 ↗
7. Stocchi C, Robinson P, Pinho ST (2013) A detailed finite element investigation of composite bolted joints with countersunk fasteners. Compos Part A-Appl S 52:143–150. https://doi.org/10.1016/j.compositesa.2012.09.01310.1016/j.compositesa.2012.09.013 ↗
8. Perogamvros N (2016) Development of experimental and numerical methodologies for the investigation of composite and hybrid metal-composite fastened joints subjected to impact loads. Dissertation, University of Patras. https://www.didaktorika.gr/eadd/handle/10442/39399
9. Wu X, Zhan L, Zhao X, Wang X, Chang T (2020) Effects of surface pre-treatment and adhesive quantity on interface characteristics of fiber metal laminates. Compos Interface 27(9):829–843. https://doi.org/10.1080/09276440.2019.170702310.1080/09276440.2019.1707023 ↗
10. Pegorin F, Pingkarawat K, Daynes S, Mouritz A (2015) Influence of z-pin length on the delamination fracture toughness and fatigue resistance of pinned composites. Compos Part B-Eng 78:298–307. https://doi.org/10.1016/j.compositesb.2015.03.09310.1016/j.compositesb.2015.03.093 ↗
11. Nguyen ATT, Brandt M, Feih S, Orifici AC (2016) Pin pull-out behaviour for hybrid metal-composite joints with integrated reinforcements. Compos Struct 155:160–172. https://doi.org/10.1016/j.compstruct.2016.07.04710.1016/j.compstruct.2016.07.047 ↗
12. Nguyen ATT, Amarasinghe CK, Brandt M, Feih S, Orifici AC (2017) Loading, support and geometry effects for pin-reinforced hybrid metal-composite joints. Compos Part A-Appl S 98:192–206. https://doi.org/10.1016/j.compositesa.2017.03.01910.1016/j.compositesa.2017.03.019 ↗
13. Nguyen ATT, Brandt M, Orifici AC, Feih S (2017) Design of pin reinforcements in metal-composite hybrid joints to maximise energy absorbance during fracture. In: 21st international conference on composite materials, Xi’an, 20–25th August 2017. https://iccm-central.org/Proceedings/ICCM21proceedings/papers/3329.pdf. Accessed 2 Sept 2024
14. Nguyen ATT, Brandt M, Orifici AC, Feih S (2016) Hierarchical surface features for improved bonding and fracture toughness of metal–metal and metal–composite bonded joints. Int J Adhes Adhes 66:81–92. https://doi.org/10.1016/j.ijadhadh.2015.12.00510.1016/j.ijadhadh.2015.12.005 ↗
15. Yang G, Yang T, Yuan W, Du Y (2019) The influence of surface treatment on the tensile properties of carbon fiber-reinforced epoxy composites-bonded joints. Compos Part B-Eng 160:446–456. https://doi.org/10.1016/j.compositesb.2018.12.09510.1016/j.compositesb.2018.12.095 ↗
16. Kajihara Y, Tamura Y, Kimura F, Suzuki G, Nakura N, Yamaguchi E (2018) Joining strength dependence on molding conditions and surface textures in blast-assisted metal-polymer direct joining. CIRP Ann 67(1):591–594. https://doi.org/10.1016/j.cirp.2018.04.11210.1016/j.cirp.2018.04.112 ↗
17. Zain NM, Ahmad SH, Ali ES (2014) Effect of surface treatments on the durability of green polyurethane adhesive bonded aluminium alloy. Int J Adhes Adhes 55:43–55. https://doi.org/10.1016/j.ijadhadh.2014.07.00710.1016/j.ijadhadh.2014.07.007 ↗
18. Saleema N, Sarkar DK, Paynter RW, Gallant D, Eskandarian M (2012) A simple surface treatment and characterization of AA 6061 aluminum alloy surface for adhesive bonding applications. Appl Surf Sci 261:742–748. https://doi.org/10.1016/j.apsusc.2012.08.09110.1016/j.apsusc.2012.08.091 ↗
19. Dal Conte UF, Villegas IF, Tachon J (2019) Ultrasonic plastic welding of CF/PA6 composites to aluminium: process and mechanical performance of welded joints. J Compos Mater 53(18):2607–2621. https://doi.org/10.1177/002199831983602210.1177/0021998319836022 ↗
20. Zhao S, Kimura F, Yamaguchi E, Horie N, Kajihara Y (2020) Manufacturing aluminum/polybutylene terephthalate direct joints by using hot water–treated aluminum via injection molding. Int J Adv Manuf Tech 107:4637–4644. https://doi.org/10.1007/s00170-020-05364-010.1007/s00170-020-05364-0 ↗
21. Kimura F, Yamaguchi E, Horie N, Suzuki G, Kajihara Y (2020) Formation of boehmite crystals on microblasted aluminum surface to enhance performance of metal–polymer direct joining. Mater Lett 260:126963. https://doi.org/10.1016/j.matlet.2019.12696310.1016/j.matlet.2019.126963 ↗
22. 6082 T6 aluminium plate specification. https://www.metalsupermarkets.co.uk/product/aluminium-plate-6082t6/. Accessed 04 October 2024.
23. XPREG XC110 prepreg carbon fibre specification. https://www.easycomposites.co.uk/prepreg-reinforcements. Accessed 04 October 2024.
24. Reeder JR, Demarco K, Whitley KS (2004) The use of doubler reinforcement in delamination toughness testing. Compos Part A-Appl S 35(11):1337–1344. https://doi.org/10.1016/j.compositesa.2004.02.02110.1016/j.compositesa.2004.02.021 ↗
25. Nguyen ATT, Pichitdej N, Brandt M, Feih S, Orifici AC (2018) Failure modelling and characterisation for pin-reinforced metal-composite joints. Compos Struct 188:185–196. https://doi.org/10.1016/j.compstruct.2017.12.04310.1016/j.compstruct.2017.12.043 ↗
26. ASTM D5528/D5528M-21 (2021) International, Standard Test Method for Mode I Interlaminar Fracture Toughness of Unidirectional Fiber-Reinforced Polymer Matrix Composites. https://www.astm.org/d5528_d5528m-21.html. Accessed 04 October 2024.
27. ISO 25217 (2009) Adhesives - Determination of the mode 1 adhesive fracture energy of structural adhesive joints using double cantilever beam and tapered double cantilever beam specimens. https://www.iso.org/standard/42797.html. Accessed 04 October 2024.
28. Zakaria AZ, Shelesh-nezhad K, Chakherlou TN, Olad A (2017) Effects of aluminum surface treatments on the interfacial fracture toughness of carbon-fiber aluminum laminates. Eng Fract Mech 172:139–151. https://doi.org/10.1016/j.engfracmech.2017.01.00410.1016/j.engfracmech.2017.01.004 ↗
29. Sacchetti F, Grouve WJ, Warnet LL, Villegas IF (2018) Interlaminar fracture toughness of 5HS Carbon/PEEK laminates. A comparison between DCB, ELS and mandrel peel tests. Polym Test 66:13–23. https://doi.org/10.1016/j.polymertesting.2017.12.00510.1016/j.polymertesting.2017.12.005 ↗
30. Chen T, Harvey CM, Wang S, Silberschmidt VV (2021) Analytical corrections for double-cantilever beam tests. Int J Fracture 229:269–276. https://doi.org/10.1007/s10704-021-00556-510.1007/s10704-021-00556-5 ↗
31. Zhao S, Kimura F, Wang S, Kajihara Y (2021) Chemical interaction at the interface of metal–plastic direct joints fabricated via injection molded direct joining. Appl Surf Sci 540(1):148339. https://doi.org/10.1016/j.apsusc.2020.14833910.1016/j.apsusc.2020.148339 ↗
32. Wang S, Kimura F, Zhao S, Yamaguchi E, Ito Y, Kajihara Y (2021) Influence of fluidity improver on metal-polymer direct joining via injection molding. Precis Eng 72:620–626. https://doi.org/10.1016/j.precisioneng.2021.07.00110.1016/j.precisioneng.2021.07.001 ↗
33. Cox BN (1999) A constitutive model for through-thickness reinforcement bridging a delamination crack. Adv Compos Lett 8(5). https://doi.org/10.1177/09636935990080050710.1177/096369359900800507 ↗
34. Cartié DDR, Cox BN, Fleck NA (2004) Mechanisms of crack bridging by composite and metallic rods. Compos Part A-Appl S 35(11):1325–1336. https://doi.org/10.1016/j.compositesa.2004.03.00610.1016/j.compositesa.2004.03.006 ↗
35. Song MC, Sankar BV, Subhash G, Yen CF (2012) Analysis of mode I delamination of z-pinned composites using a non-dimensional analytical model. Compos Part B-Eng 43(4):1776–1784. https://doi.org/10.1016/j.compositesb.2012.01.08610.1016/j.compositesb.2012.01.086 ↗
36. Grassi M, Zhang X, Meo M (2002) Prediction of stiffness and stresses in z-fibre reinforced composite laminates. Compos Part A-Appl S 33(12):1653–1664. https://doi.org/10.1016/S1359-835X(02)00137-910.1016/S1359-835X(02)00137-9 ↗
37. Yan W, Liu HY, Mai YW (2003) Numerical study on the mode I delamination toughness of z-pinned laminates. Compos Sci Techol 63(10):1481–1493. https://doi.org/10.1016/S0266-3538(03)00167-210.1016/S0266-3538(03)00167-2 ↗
38. Allegri G, Zhang X (2007) On the delamination and debond suppression in structural joints by Z-fibre pinning. Compos Part A-Appl S 38(4):1107–1115. https://doi.org/10.1016/j.compositesa.2006.06.01310.1016/j.compositesa.2006.06.013 ↗
39. Grassi M, Cox BN, Zhang X (2006) Simulation of pin-reinforced single-lap composite joints. Compos Sci Techol 66(11–12):1623–1638. https://doi.org/10.1016/j.compscitech.2005.11.01310.1016/j.compscitech.2005.11.013 ↗
40. Blacklock M, Joosten MW, Pingkarawat K, Mouritz AP (2016) Prediction of mode I delamination resistance of z-pinned laminates using the embedded finite element technique. Compos Part A-Appl S 91(1):283–291. https://doi.org/10.1016/j.compositesa.2016.10.00810.1016/j.compositesa.2016.10.008 ↗
41. Kostopoulos V, Sarantinos N, Tsantzalis S (2020) Review of through-the-thickness reinforced z-pinned composites. J Compos Sci 4(1):31. https://doi.org/10.3390/jcs401003110.3390/jcs4010031 ↗
42. Feistauer EE, dos Santos JF, Amancio-Filho ST (2019) A review on direct assembly of through-the-thickness reinforced metal–polymer composite hybrid structures. Polym Eng Sci 59:661–674. https://doi.org/10.1002/pen.2502210.1002/pen.25022 ↗
43. Dobrzański P, Oleksiak W (2021) Design and analysis methods for composite bonded joints. Trans Aerosp Res 1:45–63. https://doi.org/10.2478/tar-2021-000410.2478/tar-2021-0004 ↗