Out-of-plane static loading performance of lightweight aluminum/composite FML structures for retrofitting applications: Effectiveness of bonded, bolted and hybrid bonded/bolted joining techniques under hydrothermal aging environment

Ulus, Hasan; Burak Kaybal, Halil

doi:10.1016/j.conbuildmat.2023.133124

Construction and Building Materials

2023

DOI: 10.1016/j.conbuildmat.2023.133124

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Out-of-plane static loading performance of lightweight aluminum/composite FML structures for retrofitting applications: Effectiveness of bonded, bolted and hybrid bonded/bolted joining techniques under hydrothermal aging environment

Hasan Ulus,

Halil Burak Kaybal

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Cited by 17 publications

References 54 publications

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Comparative analysis of thermoplastic and thermoset adhesives performance and the influence on failure analysis in jointed elium‐based composite structures

Kaybal,

Ulus

2023

Polymer Composites

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The preference for thermoplastic composites over thermoset ones is steadily growing, especially in constructing resilient, lightweight, and fuel‐efficient structures in industrial settings due to their recyclability and superior energy absorption. Elium®, an acrylic‐based thermoplastic resin, offers enhanced stiffness and improved toughness at room temperature. Investigation into elium‐based composites with diverse fiber reinforcements has revealed elium's potential as an alternative to traditional thermoset epoxy resins. This study explores recyclable elium resin as an adhesive for creating curable and non‐permanent joints in various elium‐based composites. Various joining techniques, including adhesive bonding, mechanical joints, and hybrid bolted/bonded connections, were assessed, with hybrid bonded/bolted (HBB) joints emerging as a preferred solution for structures requiring higher load‐carrying capacity. The study's results indicate that, when using elium adhesive, elium‐hybrid bolted/bonded (HBB) joints demonstrate superior mechanical strength compared to their epoxy counterparts, resulting in improved toughness and stiffness values for each type of composite material. In addition, the research demonstrates superior load‐bearing strengths in bonded glass/elium composite joints using elium adhesive compared to bolted joints, with HBB joints featuring elium adhesive displaying even higher load‐bearing strengths. This research highlights the potential of elium‐based composites and adhesives in various industrial applications, enabling the production of lightweight, robust structures with exceptional damage tolerance.Highlights Investigates recyclable elium resin for curable and non‐permanent joints. Elium‐based composites offer lightweight, robust, and damage‐tolerant structures. Elium HBB joints demonstrate superior strength. FTIR analysis reveals distinct chemical signatures and bonding characteristics. Elium adhesive enhances bond strength.

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Comparative analysis of thermoplastic and thermoset adhesives performance and the influence on failure analysis in jointed elium‐based composite structures

Kaybal,

Ulus

2023

Polymer Composites

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Investigating the durability of nano‐reinforced CFRP‐aluminum and CFRP‐CFRP bonded and bonded/bolted joints under hygrothermal conditions

Karimi

2024

Polymer Composites

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Assessing the mechanical properties of CFRP and aluminum specimens exposed to hygrothermal aging is vital. Moreover, it is important to develop strategies to improve these properties. This study examines the influence of fullerene and Single‐Walled Carbon Nanotubes (SWCNT) on the fatigue life and static strength of bonded and bonded/bolted joints. The research concentrates on composite‐to‐composite and composite‐to‐aluminum substrates under three‐point bending tests, both prior to and after hygrothermal aging. The samples were classified into four groups: (1) neat specimens, (2) specimens with added fullerene, (3) specimens containing SWCNT, and (4) specimens with a blend of 50% SWCNT and 50% fullerene.The findings indicated that the optimal nanoparticle ratio for bonded joints differs from that for bonded/bolted joints. Incorporating nanoparticles into the adhesive enhanced the fatigue life of single lap joints (SLJs), particularly in samples with mixed particles and SWCNT. In some instances, nanoparticles intensified the effects of hygrothermal conditions, further increasing fatigue life. The incorporation of nanoparticles and the use of bonded/bolted joints significantly enhanced joint strength, with the combination of both yielding the best results. This study improves the understanding of aging in adhesive and hybrid joints, particularly in dissimilar configurations, and offers insights into their performance under various environmental conditions.Highlights Study examines fullerene and SWCNT impacts on CTC/CTA joint strength and fatigue. Optimal nanoparticle ratios differ for bonded and bonded/bolted joints. Nanoparticles reduce moisture absorption, aging damage, and increase failure load. Nanoparticles enhance fatigue life, varying by type, volume, load, and joint. Incorporating nanoparticles significantly improves joint strength.

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Basalt fabric/(3-aminopropyl) triethoxysilane modified epoxy laminates reinforced with nano-silica, OMMT and GNP: mechanical and dynamic mechanical studies

Arvinda Pandian,

Dharmaraj,

Thirumurugan

et al. 2024

Polym. Bull.

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Out-of-plane static loading performance of lightweight aluminum/composite FML structures for retrofitting applications: Effectiveness of bonded, bolted and hybrid bonded/bolted joining techniques under hydrothermal aging environment

Cited by 17 publications

References 54 publications

Comparative analysis of thermoplastic and thermoset adhesives performance and the influence on failure analysis in jointed elium‐based composite structures

Comparative analysis of thermoplastic and thermoset adhesives performance and the influence on failure analysis in jointed elium‐based composite structures

Investigating the durability of nano‐reinforced CFRP‐aluminum and CFRP‐CFRP bonded and bonded/bolted joints under hygrothermal conditions

Basalt fabric/(3-aminopropyl) triethoxysilane modified epoxy laminates reinforced with nano-silica, OMMT and GNP: mechanical and dynamic mechanical studies

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