Benchmarking of three-dimensional finite element models of CFRP single-lap bonded joints

Díaz, J.; Romera, Luis; Hernández, Santiago; Baldomir, Aitor

doi:10.1016/j.ijadhadh.2009.12.005

Cited by 25 publications

(8 citation statements)

References 22 publications

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“…The mesh size is refined close to the edges of the adhesive layer, as well as close to both adhesive-adherend interfaces. Close to the ends of the overlap, the adherends have a notably smaller mesh size than the more central regions, which was shown by Diaz et al [31] to give better quality results, due to the gradient of stresses and strains making these locations mesh-sensitive. The size of the elements in the mesh-sensitive regions is 0.05 mm, while the elements away from the more mesh-sensitive regions are bigger: 0.1 mm along the width (X-direction) and thickness (Z-direction), 0.4 mm along the length (Y-direction).…”

Section: Numerical Modelsmentioning

confidence: 99%

Comparative study of adhesive joint designs for composite trusses based on numerical models

et al. 2017

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Section: Numerical Modelsmentioning

confidence: 99%

Comparative study of adhesive joint designs for composite trusses based on numerical models

et al. 2017

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“…A single-lap adhesive-bonded joint used by Tsai and Morton [41] was adopted here as a benchmark. The joint was also utilized by Diaz et al [42] to study the modeling techniques for 3D accuracy stress and strain responses.…”

Section: Numerical Verificationmentioning

confidence: 99%

“…Meanwhile, a 3D FE model with C3D8 solid elements was established according to 3D FE modeling techniques of Diaz et al [42], as depicted in Fig. 2, c. The same mesh scheme as that of the 2D FE model was used in the 3D FE model.…”

Section: Numerical Verificationmentioning

confidence: 99%

See 1 more Smart Citation

A New Material Model for 2D FE Analysis of Adhesively Bonded Composite Joints

Zhao

Wang

Qin

et al. 2014

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Effective and convenient stress analysis techniques play important roles in the analysis and design of adhesively bonded composite joints. A new material model is presented at the level of composite ply according to the orthotropic elastic mechanics theory and plane strain assumption. The model proposed has the potential to reserve nature properties of laminates with ply-to-ply modeling. The equivalent engineering constants in the model are obtained only by the material properties of unidirectional composites. Based on commercial FE software ABAQUS, a 2D FE model of a single-lap adhesively bonded joint was established conveniently by using the new model without complex modeling process and much professional knowledge. Stress distributions in adhesive were compared with the numerical results by Tsai and Morton and interlaminar stresses between adhesive and adherents were compared with the results from a detailed 3D FE analysis. Good agreements in both cases verify the validity of the proposed model.

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“…[25][26][27][28][29][30][31][32] Grant et al [25] investigated the effects of various parameters such as the overlap length, the bond line thickness, and the spew fillet. Diaz et al [26] carried out a benchmark investigation of 3D finite element models of CFRP single lap joints, all the simulations were conducted with 3D meshes and geometrical nonlinearity was considered. The influence of the height and angle of inner chamfer near the edges of the adherends and the elastic modulus of several adhesives on the stress distribution in single lap joints was investigated by You et al [27] using both the elasto-plastic FEA and experimental methods.…”

Section: Finite Element Modeling and Analysis Of Composite Single Lapmentioning

confidence: 99%

Analysis of composite single lap joints using numerical and experimental approach

Kumar¹,

Bhat²,

Murthy³

2014

Journal of Adhesion Science and Technology

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Adhesives are widely used to execute the assembly of aerospace and automotive structures due to their ability to join dissimilar materials, reduced stress concentration, and improved fatigue resistance. The mechanical behavior of adhesive joints can be studied either using analytical models or by conducting mechanical tests. However, the complexity owing to multiple interfaces, layers with different properties, material and geometric nonlinearity and its three-dimensional nature combine to increase the difficulty in obtaining an overall system of governing equations to predict the joint behavior. On the other hand, experiments are often time consuming and expensive due to a number of parameters involved. Finite element analysis (FEA) is profoundly used in recent years to overcome these limitations. The work presented in this paper involves the finite element modeling and analysis of a composite single lap joint where the adhesive-adherend interface region was modeled using connector elements. The computed stresses were compared with the experimental stresses obtained using digital image correlation technique. The results showed an agreement. Further, the failure load predicted using FEA was found to be closer to the actual failure load obtained by mechanical tests.

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Benchmarking of three-dimensional finite element models of CFRP single-lap bonded joints

Cited by 25 publications

References 22 publications

Comparative study of adhesive joint designs for composite trusses based on numerical models

Comparative study of adhesive joint designs for composite trusses based on numerical models

A New Material Model for 2D FE Analysis of Adhesively Bonded Composite Joints

Analysis of composite single lap joints using numerical and experimental approach

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