Fatigue behaviour of single skin FRP tee joints

Read, P.J.C.L.; Shenoi, R.A.

doi:10.1016/s0142-1123(98)00075-9

Cited by 20 publications

(14 citation statements)

References 7 publications

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“…The fatigue behavior of out-of-plane bonded and laminated connections in structures made from fiber-reinforced plastic (FRP) composite materials was studied by Read and Shenoi (1999). The major effects of fatigue include stiffness degradation, residual strength and energy dissipation characteristics.…”

Section: Fatigue Behavior Of T-joints and Crack Detectionmentioning

confidence: 99%

Analysis of crack formation in T-joint structures under dynamic loading

Pilipchuk

Ibrahim

2010

Journal of Vibration and Control

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T-joints play a vital role in the hulls of ships and bulkheads made of sandwich materials. Their design aspects and crack detection are important in preserving the safety of ships navigating through violent sea waves. In this work, an overview of the state-of-the-art of design aspects of T-joints used mainly in ship structures is first provided. The design aspects are focused on estimating static and quasi-static failure loads, fracture and fatigue characteristics. This study also develops a reduced order dynamic model for identification of cracks in T-joints. The reduced model constitutes three modal equations with piecewise-linear asymmetric characteristics in which the influence of the crack appears in terms of its length parameter. In particular, it is shown that the presence of a crack essentially affects both the amplitude and frequency content of the dynamic response due to nonlinear coupling between normal modes. Under external dynamic loading with a frequency close to the first mode frequency, the development of a crack is identified by the evolution of attractors on the configuration planes created by different combinations of modal coordinates.

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Section: Fatigue Behavior Of T-joints and Crack Detectionmentioning

confidence: 99%

Analysis of crack formation in T-joint structures under dynamic loading

Pilipchuk

Ibrahim

2010

Journal of Vibration and Control

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“…Failure of composite T-joints has also been studied experimentally from different point of view by many investigators [3,4,[20][21][22][23][24][25][26][27][28][29]. The initiation of delamination in the composite T-joint is almost always initiated on the joint's corner due to the maximum stresses developed in this region.…”

Section: Introductionmentioning

confidence: 99%

A Finite Element and Experimental Analysis of Composite T-Joints Used in Wind Turbine Blades

Wang

Soutis

2018

Appl Compos Mater

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In this study, a finite element failure model was created using ABAQUS to determine the location where delamination is initiated and its subsequent propagation. The effect of fibre-reinforced structures on delamination behaviour was studied. The composite Tjoints were made of glass fabric infused with epoxy resin using a vacuum assisted resin transfer moulding technique. The veil layer and 3D weave techniques were employed to improve the properties in the through-thickness direction that can delay or prevent delamination when in service. All the pull-out tensile tests were conducted in an Instron testing machine using a specially designed test fixture. The 3D weave T-joints were found to have improved performance under both static and fatigue loading. Increasing the static properties increases fatigue life performance. The location for the through-thickness reinforcement plays an important role in extending fatigue life of the T-joints.

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“…The evolution of the global stiffness is strong at the beginning of the fatigue tests (approximately 20% of the lifetime) and during 80% of the lifetime the rate of stiffness decrease is constant until a sudden rupture of the assembly. For two different load levels, Read and Shenoi [2] showed that an increase of the load level led to a decrease of the lifetime. An experimental and theoretical study by Blake et al [3] on T-joints with viscoelastic inserts under flexwal loadings showed a good agreement between experimental results and the progressive damage model.…”

Section: Introductionmentioning

confidence: 99%