Strength and failure analysis of composite-to-composite adhesive bonds with different surface treatments

Paranjpe, Nikhil; Alamir, Mohammed A.; Alonayni, Abdullah; Asmatulu, Eylem; Rahman, Muhammad M.; Asmatulu, Ramazan

doi:10.1117/12.2296653

Cited by 3 publications

(3 citation statements)

References 10 publications

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“…The impact of energy is higher than the total dissipation of energy and elastic energy in the event of an impact, generating complete penetration into the CFRC. [51][52][53] When the impactor penetrates the CFRC, it allows some energy to infiltrate small parts of the material, and its kinetic energy is conserved. This fiber breakage occurs throughout the damaged area.…”

Section: Impact Damage In Carbon Fiber-reinforced Compositesmentioning

confidence: 99%

Recovery of impact-damaged carbon fiber–reinforced composites using induction heating

Bayazeid

Poon²,

Subeshan

et al. 2021

Journal of Composite Materials

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Carbon fiber–reinforced composites (CFRCs) have been used extensively in structural applications within the aerospace and automotive manufacturing industries. However, several other applications have been recognized. These take advantage of the additional properties of CFRCs, which lead to providing better performance for structures. However, in their service environment, these CFRCs are inevitably susceptible to impact damage from multiple sources, and they must be able to recover from impacts to meet structural requirements. This study directs an experimental investigation of using induction heating (IH) for an impact-damaged CFRC. Here, IH process parameters, including the effects of electromagnetic frequency and generator power on the recovery of impact-damaged CFRC, have been analyzed. The anisotropic conductivity characteristics and the relationship between the drop-weight impact depth and conductivity of CFRC garnered much attention. This paper also offers the electromagnetic properties of CFRC for various applications. In this study, CFRC cured samples were obtained from Cetex® TC1200 PEEK, AS4 145 gsm, 16 unidirectional plies. Three variants of CFRC samples were tested: undamaged samples; samples with impact damage introduced in the center by a drop-weight impact test, according to the ASTM D7136/7136M standard; and samples with drop-weight impact damage recovered using the IH system. This work presents the results of the tensile strength of CFRC samples to assess the comparison of undamaged samples, samples damaged after the drop-weight impact test, and samples recovered after the drop-weight impact test. IH is appropriate for the recovery of impact-damaged CFRC samples, aiding in the conversion of electromagnetic energy to heat in order to generate mechanisms on components to recover the impact-damaged CFRC samples. Experimental results show that the impact-damaged area of the recovered CFRC samples is 37.0% less than that of damaged CFRC samples, and tensile strength results also improved after the impact-damaged CFRC samples were recovered. These results show that the IH method can effectively improve the impact damage performance of CFRC. The outcome of this study is promising for use in many applications, especially in the aerospace and automotive industries.

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Section: Impact Damage In Carbon Fiber-reinforced Compositesmentioning

confidence: 99%

Recovery of impact-damaged carbon fiber–reinforced composites using induction heating

Bayazeid

Poon²,

Subeshan

et al. 2021

Journal of Composite Materials

Self Cite

View full text Add to dashboard Cite

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“…In the case of hybrid joining, i.e. the joining of dissimilar materials, the presence of a polymeric adhesive layer can delay or even entirely prevent crevice and galvanic corrosion [12,13]. The mechanical performance of adhesively bonded structures is sensitive to the surface properties of the two adherends prior to bonding.…”

Section: Introductionmentioning

confidence: 99%

Effect of CFRP surface topography on the adhesion and strength of composite-composite and composite-metal joints

Viswanathan-Chettiar

Sun

et al. 2023

Composites Part A: Applied Science and Manufacturing

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“…In such a context, the joining technologies most commonly used for composite structures include mechanical fixing [3,4] casting (welding) [5,6] and adhesive bonding [7][8][9]. In particular, adhesive joints are widely used due to their several advantages in comparison to their mechanical counterparts such as lower structural weight, lower manufacturing cost, better damage tolerance, no damages 2 of 14 on the composite structure and avoiding of stress concentrations [10].…”

Section: Introductionmentioning

confidence: 99%

Effect of Silane Coupling Treatment on the Adhesion between Polyamide and Epoxy Based Composites Reinforced with Carbon Fibers

Fiore

Orlando

Sanfilippo

et al. 2020

Fibers

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The increasing efforts aimed to design structures with reduced weight and better mechanical performances has led in recent years to a growing use of fiber reinforced polymer materials in several fields such as marine. However, these materials can be composed of chemically very different elements and, hence, may be difficult to joint. This research aims to improve the adhesion between a thermoplastic matrix of polyamide reinforced with short carbon fibers (PA12-CR) and a carbon fiber reinforced epoxy matrix (CFRP). Two different silane coupling agents, (3-Aminopropyl)trimethoxysilane (AM) and (3-Glycidyloxypropyl)trimethoxysilane (EP), were applied, through the spray deposition method, on the PA12-CR substrate to create a reactive layer between the adherents. Different deposition methods and coupling agents curing conditions were also investigated. The wettability of the PA12-CR surface as well as the chemical modifications induced by silane treatments were investigated through contact angle and Fourier Transform Infrared spectroscopy (FTIR) analyses. Furthermore, the interfacial adhesion between PA12-CR and CFRP substrates was evaluated through Mode I delamination tests (DCB). The effectiveness of the most promising treatment was finally verified on sandwich structures, having PA12-CR printed as internal core and CFRP laminates as external skins, through quasi-static three-point bending mechanical tests. Overall, the epoxy-based silane (EP) allowed significantly better resistance to the delamination up until the tensile failure of the CFRP substrate.

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Strength and failure analysis of composite-to-composite adhesive bonds with different surface treatments

Cited by 3 publications

References 10 publications

Recovery of impact-damaged carbon fiber–reinforced composites using induction heating

Recovery of impact-damaged carbon fiber–reinforced composites using induction heating

Effect of CFRP surface topography on the adhesion and strength of composite-composite and composite-metal joints

Effect of Silane Coupling Treatment on the Adhesion between Polyamide and Epoxy Based Composites Reinforced with Carbon Fibers

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