Three-dimensional finite element analysis of single-bolt, single-lap composite bolted joints: part I—model development and validation

McCarthy, Michael A.; McCarthy, Conor T.; Lawlor, V.; Stanley, W.F.

doi:10.1016/j.compstruct.2004.09.024

Cited by 212 publications

(150 citation statements)

References 28 publications

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“…McCarthy and McCarthy [9] and McCarthy et al [10] conducted extensive 3-D modelling of single-bolt, single-lap joint configurations. They discuss in detail the importance of capturing accurately the contact between the bolt and the hole and the other contact regions in the problem.…”

Section: Introductionmentioning

confidence: 99%

Strength prediction in CFRP woven laminate bolted single-lap joints under quasi-static loading using XFEM

Ahmad

Crocombe

Smith

2014

Composites Part A: Applied Science and Manufacturing

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a b s t r a c tThis paper is concerned with modelling damage and fracture in woven fabric CFRP single-lap bolted joints that fail by net-tension. The approach is based on the assumption that damage (matrix cracking, delamination and fibre tow fracture) initiates and propagates from the hole in a self-similar fashion. A traction-separation law (based on physically meaningful material parameters) is implemented within an Extended Finite Element Method (XFEM) framework and used to predict the joint strength. Reasonable agreement between model and experiment was obtained for test configurations covering different weave types and lay-ups, a range of joint geometries (two hole diameters and a range of normalised joint widths) and finger-tight and fully torqued clamp-up conditions. The greatest discrepancies were for situations where the tensile fracture mechanisms were more complex, and hence not captured fully in the model or when bearing failure occurred.

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Section: Introductionmentioning

confidence: 99%

Strength prediction in CFRP woven laminate bolted single-lap joints under quasi-static loading using XFEM

Ahmad

Crocombe

Smith

2014

Composites Part A: Applied Science and Manufacturing

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“…In the user-defined finite element, the material was modelled using homogeneous material properties, which were obtained by McCarthy et al [4] and are also listed in Table 1. The variables E nn , G nm and υ nm refer to the modulus, shear modulus and Poisson's ratio in the global laminate directions n, m (n, m = x, y, z), respectively.…”

Section: Joint Geometries and Materialsmentioning

confidence: 99%

“…The single-bolt, single-lap joint, shown in Fig.1(a), was used for the initial development of the user-defined finite element as extensive experimental and numerical results for this joint configuration were available from the literature [1,[4][5][6]. Following this study, the capability of the method to model complex load distributions will be assessed through a global FE analysis of a twenty-bolt joint (see Fig.1(b)) in both single-lap and double-lap joint configurations.…”

Section: Joint Geometries and Materialsmentioning

confidence: 99%

“…Joint design practices have been proposed in the past ranging from experimental testing [1][2][3], detailed three-dimensional finite element (3-D FE) analysis [4][5][6][7][8][9][10], analytical methods [11][12][13][14][15], boundary element formulations [16], boundary collocation methods [17] and semiempirical approaches [18,19]. Simplified FE approaches have been used to represent bolts and laminates [20][21][22].…”

Section: Introductionmentioning

confidence: 99%

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A highly efficient user-defined finite element for load distribution analysis of large-scale bolted composite structures

Gray¹,

McCarthy²

2011

Composites Science and Technology

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This paper presents the development of a highly efficient user-defined finite element for modelling the bolt-load distribution in large-scale composite structures. The method is a combined analytical/numerical approach and is capable of representing the full non-linear load-displacement behaviour of bolted composite joints both up to, and including, joint failure. In the elastic range, the method is generic and is a numerical extension of a closedform method capable of modelling the load distribution in single-column joints. A semiempirical approach is used to model failure initiation and energy absorption in the joint and this has been successfully applied in models of single-bolt, single-lap joints. In terms of large-scale applications, the method is validated against an experimental study of complex load distributions in multi-row, multi-column joints. The method is robust, accurate and highly efficient, thus demonstrating its potential as a time/cost saving design tool for the aerospace industry and indeed other industries utilising bolted composite structures.

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“…To avoid modelling each ply of the laminates discretely, homogeneous orthotropic material properties were derived using a homogenisation procedure outlined in [11] and are shown in Table 2. The titanium bolts and steel washers were modelled with isotropic linear elastic material properties, with GPa, for the bolts, and GPa, for the washers.…”

Section: Figure 2 Fe Model With Boundary Conditionsmentioning

confidence: 99%

Predicting Failure in Multi-Bolt Composite Joints Using Finite Element Analysis and Bearing-Bypass Diagrams

McCarthy¹,

McCarthy²,

Gilchrist³

2005

Damage Assessment of Structures VI

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Abstract.A three-dimensional finite element model of a three-bolt, single-lap composite joint is constructed using the non-linear finite element code MSC.Marc. The model is validated against an experiment where the load distribution in the joint is measured using instrumented bolts. Two different joint configurations are examined, one with neat-fit clearances at each bolt-hole and another with a 240 µm clearance at one hole with neat-fits at the others. Bearing and by-pass stresses are extracted from the model and used in conjunction with published bearing/by-pass diagrams to predict the failure load, mode and location for the joints. It is shown that the proposed model accurately predicts the failure behaviour of the joints, as determined from experiments on three-bolt joints loaded to failure. It is also shown that introducing a clearance into one hole significantly changes the failure sequence, but does not affect the ultimate failure load, mode or location. The proposed method demonstrates a simple approach to predicting damage in complex multi-bolt composite joints.

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Three-dimensional finite element analysis of single-bolt, single-lap composite bolted joints: part I—model development and validation

Cited by 212 publications

References 28 publications

Strength prediction in CFRP woven laminate bolted single-lap joints under quasi-static loading using XFEM

Strength prediction in CFRP woven laminate bolted single-lap joints under quasi-static loading using XFEM

A highly efficient user-defined finite element for load distribution analysis of large-scale bolted composite structures

Predicting Failure in Multi-Bolt Composite Joints Using Finite Element Analysis and Bearing-Bypass Diagrams

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