Impact damage response of natural stitched single lap-joint in composite structures

Ghasemnejad, H.; Argentiero, Y.; Tez, T.A.; Barrington, P.E.

doi:10.1016/j.matdes.2013.04.059

Cited by 23 publications

(7 citation statements)

References 24 publications

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“…In this technique, the composite can be fabricated by (i) reinforcement of un-cured pre-preg (pre-impregnated) laminates in the direction of a thickness (Z-pinning technique) ( Figure 9 a), and (ii) employment of dry fabric preforms that already includes the through-thickness reinforcement before the resin infusion (stitching). Modified lockstitch, lockstitch, and chain stitch are commonly used stitching techniques ( Figure 9 b–d) [ 190 , 191 , 192 , 193 ]. As for the weave preform, the best structural arrangement is the twill weave fabric due to its having the highest impact strength, which results in higher required force to pull out or break the fibers [ 194 ].…”

Section: Mechanical Properties Of Hybrid Biocompositesmentioning

confidence: 99%

Recent Progress in Hybrid Biocomposites: Mechanical Properties, Water Absorption, and Flame Retardancy

2020

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Bio-based composites are reinforced polymeric materials in which one of the matrix and reinforcement components or both are from bio-based origins. The biocomposite industry has recently drawn great attention for diverse applications, from household articles to automobiles. This is owing to their low cost, biodegradability, being lightweight, availability, and environmental concerns over synthetic and nonrenewable materials derived from limited resources like fossil fuel. The focus has slowly shifted from traditional biocomposite systems, including thermoplastic polymers reinforced with natural fibers, to more advanced systems called hybrid biocomposites. Hybridization of bio-based fibers/matrices and synthetic ones offers a new strategy to overcome the shortcomings of purely natural fibers or matrices. By incorporating two or more reinforcement types into a single composite, it is possible to not only maintain the advantages of both types but also alleviate some disadvantages of one type of reinforcement by another one. This approach leads to improvement of the mechanical and physical properties of biocomposites for extensive applications. The present review article intends to provide a general overview of selecting the materials to manufacture hybrid biocomposite systems with improved strength properties, water, and burning resistance in recent years.

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Section: Mechanical Properties Of Hybrid Biocompositesmentioning

confidence: 99%

Recent Progress in Hybrid Biocomposites: Mechanical Properties, Water Absorption, and Flame Retardancy

2020

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“…Stitching technology is already used in the field of composite laminates [2]. Therefore, stitching has been used in adhesive joints to improve shear strength [3]. The study of stitched joints began in 1985.…”

Section: Introductionmentioning

confidence: 99%

An investigation of the stitching effect on single lap shear joints in laminated composites

Wang

Geng

Chen

et al. 2019

Science and Engineering of Composite Materials

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This paper aimed to investigate the stitching effect on the bond strength of single lap shear joints in carbon/epoxy composite laminates using experimental and simulation methods. Stitched and unstitched single lap shear joints were bonded using the EC-3448 epoxy adhesive and tested under different working environments, including room temperature/dry (RTD), elevated temperature/wet (ETW) and cold temperature/dry (CTD). The results showed that stitching improved the bond strength of the stitched single lap joints, with approximately 60% higher strength for stitched compared to unstitched lap joints under RTD and CTD environments and 10% higher strength under an ETW environment. The increase was smaller under ETW conditions because the adhesive recured under elevated temperature. Embedded interactions connected the lapping plates and the stitch line, and the maximum stress failure criterion was adopted for the stitch line. As the predicted failure modes are consistent with the experimental results, the progressive damage mode can be applied to simulate stitched composite structures.

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“…Choudhry et al 19 proposed a design guide for single-lap joints of woven glass fabric-reinforced composites. Ghasemnejad et al 20 found that the composites stitched through the thickness were able to absorb more energy in comparison with adhesively bonded composite joints through Charpy impact test. On the other hand, Park et al 21 conducted high velocity transverse impact tests with ice sphere onto the composite joints.…”

Section: Introductionmentioning

confidence: 99%

“…Ghasemnejad et al. 20 found that the composites stitched through the thickness were able to absorb more energy in comparison with adhesively bonded composite joints through Charpy impact test. On the other hand, Park et al.…”

Section: Introductionmentioning

confidence: 99%

Dynamic strength of adhesively bonded composite joints with similar and dissimilar assembled adherends

2017

Journal of Reinforced Plastics and Composites

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The effect of similar versus dissimilar assembled adherends, on the dynamic strength of single-lap, adhesively bonded composite joints is investigated. The assembled adherend materials include titanium, aluminum and composite. To this end, split Hopkins pressure bar is used to assess the strength of the joints at high loading rates. The tests show that the dynamic strength of the joints is influenced by the assembled adherend material stiffness, and the highest strength is achieved when using high stiffness adherend materials. Numerical results conclude that the increase in the stiffness of the assembled adherend material alleviates the stress concentration and promotes a more uniform distribution of stresses in the adhesive. The results of this study indicate that the selection of assembled adherend material should be accounted for while designing adhesively bonded composite joints.

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Impact damage response of natural stitched single lap-joint in composite structures

Cited by 23 publications

References 24 publications

Recent Progress in Hybrid Biocomposites: Mechanical Properties, Water Absorption, and Flame Retardancy

Recent Progress in Hybrid Biocomposites: Mechanical Properties, Water Absorption, and Flame Retardancy

An investigation of the stitching effect on single lap shear joints in laminated composites

Dynamic strength of adhesively bonded composite joints with similar and dissimilar assembled adherends

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