A Puck-based localisation plane theory for rate- and pressure-dependent constitutive modelling of unidirectional fibre-reinforced polymers

Thomson, Daniel; Erice, Borja; Cui, Hao; Hoffmann, Justus; Wiegand, Jens; Petrinić, Nik

doi:10.1016/j.compstruct.2017.09.088

Cited by 19 publications

(16 citation statements)

References 15 publications

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“…The initiation of nonlinearity increased with the increase of off-axis angle, because the yield strength can be enhanced by transverse compressive stress [24]. The axial failure strain was between 3% and 7% depending on off-axis angle, detailed discussion on it will be provided in Section 4.3.…”

Section: Stress-strain Curvesmentioning

confidence: 99%

Inter-fibre failure of through-thickness reinforced laminates in combined transverse compression and shear load

Cui

Melro

Yasaee

2018

Composites Science and Technology

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Extensive studies have been reported on the improvement of through-thickness reinforcement to inter-laminar performance of composite laminates; current understanding on the in-plane performance is relatively limited, although it is also concerned in industrial application. The influence of through-thickness reinforcement (Z-pinning) on the inter-fibre failure in compression of unidirectional laminates was investigated. Both unpinned and Zpinned laminates were tested at four different off-axis angles, representing different combinations of transverse compression and in-plane shear stress. It was found that the stiffness of Z-pinned laminates decreased significantly in all off-axis angles. The failure strain and strength were reduced in shear dominated failure modes, while improved in the compression dominated failure modes by the presence of the Z-pins. A further investigation on the angle of failure plane was carried out and a comparison with analytical failure models is presented.

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Section: Stress-strain Curvesmentioning

confidence: 99%

Inter-fibre failure of through-thickness reinforced laminates in combined transverse compression and shear load

Cui

Melro

Yasaee

2018

Composites Science and Technology

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“…The numerical results for the QS and HR loading regimes show a good agreement with the experiments. It is believed that the simulations of the experiments would provide a more detailed understanding of the failure sequence if one introduces (i) a rate-dependent damage criteria in the CFRP, (ii) cohesive elements or other methods to model delamination or (iii) non-linear shear behaviour [48,49,50,51]. Nevertheless, the simulations are in good agreement with the experimental observations.…”

Section: Discussion Of Numerical Resultsmentioning

confidence: 67%

Multi-material adhesively bonded structures: Characterisation and modelling of their rate-dependent performance

Lißner

Erice

Alabort

et al. 2020

Composites Part B: Engineering

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The rate-dependent failure response of multi-material adhesive joints for three deformation modes is investigated. A combination of carbon fibre reinforced polymers (CFRP) and titanium alloy Ti-6Al-4V is employed. The experiments provide important information about the failure sequence of a multi-material adhesive joints, which depends upon the loading rate regime. This is the first time that dynamic fracture mechanics experiments are performed in multi-material adhesive structures. The observed experimental results suggest a rate-dependent failure sequence for mode I dominated fracture. Simulations of the experiments are used to predict and rationalise the failure performance of the multi-material adhesive joint. The numerical analysis highlighted the importance of the individual knowledge of the rate-dependent mechanical performance of adhesive and composite to fully understand the fracture sequence of multi-material joints under impact.

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“…The unidirectional composite beam arms of the DCB are modelled using quadrilateral plane strain elements with linear elastic and transversely isotropic model describing their constitutive behavior. The elastic properties of the lamina is taken from authors' work [9]. A layer of 2D cohesive elements of thickness 0.01 mm is inserted between the beam arms to simulate interface delamination.…”

Section: Finite Element Modellingmentioning

confidence: 99%

A Wedge-DCB Test Methodology to Characterise High Rate Mode-I Interlaminar Fracture Properties of Fibre Composites

et al. 2018

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A combined numerical-experimental methodology is presented to measure dynamic Mode-I fracture properties of fiber reinforced composites. A modified wedge-DCB test using a Split-Hopkinson Bar technique along with cohesive zone modelling is utilised for this purpose. Three different comparison metrics, namely, strain-displacement response, crack propagation history and crack opening history are employed in order to extract unique values for the cohesive fracture properties of the delaminating interface. More importantly, the complexity of dealing with the frictional effects between the wedge and the DCB specimen is effectively circumvented by utilising right acquisition techniques combined with an inverse numerical modelling procedure. The proposed methodology is applied to extract the high rate interlaminar fracture properties of carbon fiber reinforced epoxy composites and it is further shown that a high level of confidence in the calibrated data can be established by adopting the proposed methodology.

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A Puck-based localisation plane theory for rate- and pressure-dependent constitutive modelling of unidirectional fibre-reinforced polymers

Cited by 19 publications

References 15 publications

Inter-fibre failure of through-thickness reinforced laminates in combined transverse compression and shear load

Inter-fibre failure of through-thickness reinforced laminates in combined transverse compression and shear load

Multi-material adhesively bonded structures: Characterisation and modelling of their rate-dependent performance

A Wedge-DCB Test Methodology to Characterise High Rate Mode-I Interlaminar Fracture Properties of Fibre Composites

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