Fabrication, testing and analysis of steel/composite DLS adhesive joints

Hashim, S.A.; Berggreen, Christian; Tsouvalis, Nicholas G.; McGeorge, Dag; Chirica, Ionel; Moore, Philippa; Boyd, Stephen; Nisar, Jawad; Anyfantis, Konstantinos N.; Misirlis, K; Juin, E.; Hayman, Brian; Dow, Robert S.; Orsolini, A.

doi:10.1080/17445302.2010.522019

Cited by 13 publications

(11 citation statements)

References 8 publications

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“…Similar experimental results were observed in other work. 18 Also the effect of fibre direction was considered for 75 mm overlap length specimens. Figure 4(b) shows the mean values of the maximum failure loads for the three fabric orientations.…”

Section: Test Resultsmentioning

confidence: 99%

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Stress analysis of steel/carbon composite double lap shear joints under tensile loading

Yahya

Hashim

2014

Proceedings of the Institution of Mechanical Engineers, Part L:

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The study is related to adhesive-bonded long overlap double lap shear joints with thick adherends. The outer adherend is based on crossply carbon fibre/epoxy composite laminate and the inner adherend is mild steel. The paper aims to predict and assess the structural failure of the joint, including delamination of the composite and to determine the effects of the design parameters of adherend thickness, overlap length and fabric orientation on the joint's failure. Both experimental and numerical methods were used for the analysis. The experimental programme includes fabrication, mechanical testing and failure examinations of various joints. The numerical methods are based on 2-D models using strength-limit and cohesive zone modelling methods, taking into consideration the composite properties of the plies and the resin layers separating them. The study showed a good agreement between the numerical and experimental results. Key conclusions in relation to the failure and design parameters of the joints are made.

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Section: Test Resultsmentioning

confidence: 99%

“…The properties are obtained from the relevant manufacturers and literature data. 18,19 The structural adhesive used to bond the specimens was two-part epoxy adhesive Araldite 2015 (Huntsman UK Ltd). The crossply composite laminates were produced and supplied by FFI, Norway.…”

Section: Introductionmentioning

confidence: 99%

Stress analysis of steel/carbon composite double lap shear joints under tensile loading

Yahya

Hashim

2014

Proceedings of the Institution of Mechanical Engineers, Part L:

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“…Pipe joining methods can be categorised into three main types: (1) mechanical fastening; (2) welding and (3) adhesive bonding. Compared with the mechanical fastening and welding methods, adhesively bonded joints offer several advantages including, lower stress concentration, more uniform stress distribution, lighter weight, water tightness, corrosion-resistance and better fatigue properties (Cheng and Li 2008;Hashim et al 2011). Recently, with the advancement of adhesive material science and bonding techniques, adhesively bonded composite piping systems have been increasingly adopted in the marine industries, including drilling platforms and pipelines (Mejri and Cognard 2009).…”

Section: Introductionmentioning

confidence: 98%

Analytical study of the strength of adhesive joints of riser pipes

Duan

Wang

et al. 2015

Ships and Offshore Structures

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Today, adhesive pipe joints are widely used in marine engineering equipment such as platforms and pipe lines, because of the manifest advantages, such as lower stress concentration, uniform stress distribution, lighter weight, water tightness, corrosion-resistance and better fatigue properties. However, adhesive joints in riser pipes are the most vulnerable part where most failures occur, because singular stress fields exist at the extremes of the interface between the adhesive and the adherend. In order to prevent premature failure of the joint systems, a study of adhesive pipe joints under the actual sea environment loadings, including as external pressure, internal pressure, tension, torsion, bending, and combinations of these, should be conducted. In this reported study, stress distributions were analysed in terms of the first-order laminated theory, and it was found that numerical results were in a good agreement with the obtained results obtained from the finite element analysis. In the light of these results, the failure of adhesive joints in deep sea riser pipes was discussed based on stress distributions on the interfaces as defined by theoretical analysis and Finite Element Method. Moreover, the effects of material properties and joint dimensions on the strength of adhesive joints under different load cases were studied.

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“…Kunal et al (2010) explored the possibility of using composite panels for the hatch cover of bulk carrier ships in view of the dynamic load by the breaking of waves above the foremost hatch cover. Hashim et al (2011) have stressed the use of hybrid of steel and composite for larger marine vehicles. They described the joint method for steel and composite.…”

Section: Introductionmentioning

confidence: 99%

Design and analysis of composite panel for impact loads in marine environment

Kumar

Surendran

2013

Ships and Offshore Structures

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Impact loads from incoming waves always challenge the strength of structural parts of a ship. Modern high-speed crafts including naval vessels are subjected to impact loads during high speed and sudden manoeuvre. Wave slamming may damage structural parts and cause flooding of compartments due to impact. Hydrodynamic impact load results in structural damage in conventional marine vehicles. Loads during cargo loading, unloading, shipping of green water, impact with icebergs etc. come under low-velocity impact loads. The structural parts of a ship can also be damaged due to the impact of collision with icebergs as in the case of the Titanic accident. Weapon discharge, flight operation, bulk cargo operation and collision with other structures are other examples of impact load acting on marine vehicles. Severe hydrodynamic impact load may cause damage of shell plating, collapse of bow part, damage of hatch covers, collapse of hull girder etc. Such structural parts should possess sufficient impact strength. Composite shells can be used for hull, deck or hatch covers of bulk carriers to reduce the weight of vehicle and to indirectly increase the pay load capacity. In the present work, cost-effective composites are prepared by adding fillers to improve impact strengths and tested to verify the same. The main objective of the study is to develop a cost-effective composite to be used as part of hull, deck and hatch cover of bulk carrier. Feasibility and selection of fillers to improve impact strength are established. Prior to this, different sizes of fillers and the chemical treatment of filler with acid were considered. Calcium carbonate (CaCO 3 ), silicon carbide (SiC) and alumina (Al 2 O 3 ) are considered with glass epoxy composite for the above analysis. The additional impact strength due to the application of fillers is determined using Izod impact strength tests. Contact force is considered as a scale parameter for the impact response for composite laminates. Contact force is the force against impact load on composite structures. Contact force and deflection history of composite panels are affected by a number of parameters such as fibres angle, laminate geometry, impactor energy, stiffeners, surface area of impactor and loading eccentricity. Effects of all possible parameters are included and their influence on the response is determined using the well-known package based on finite element method (FEM), ABAQUS. The FEM analysis of Khalili et al. (2011 Compos Struct 93:1363-1375 is used for comparison of results of the present numerical analysis. The study leads to many new insights to designers of cost-effective composite structures.

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Fabrication, testing and analysis of steel/composite DLS adhesive joints

Cited by 13 publications

References 8 publications

Stress analysis of steel/carbon composite double lap shear joints under tensile loading

Stress analysis of steel/carbon composite double lap shear joints under tensile loading

Analytical study of the strength of adhesive joints of riser pipes

Design and analysis of composite panel for impact loads in marine environment

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