Composite coating effect on stress intensity factors of aluminum pressure vessels with inner circumferential crack by X-FEM

Tasavori, Majid; Maleki, Arash Tavakoli; Ahmadi, Isa

doi:10.1016/j.ijpvp.2021.104445

Cited by 8 publications

(2 citation statements)

References 31 publications

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“…It also eliminates the need for extremely refined meshing in the crack-tip region [20], making it suitable for various complex models. Tasavori, M [21] used XFEM to investigate the fracture behavior of cracks on the inner surface of axisymmetric pressure vessels, calculating and comparing stress intensity factors for single-layer aluminum and outer-layer composite materials. Park, WR [22] utilized layer modeling and XFEM to assess crack behavior in Type III high-pressure hydrogen storage cylinders, with failure criteria determined based on maximum principal stress exceeding the allowable tensile strength and displacement.…”

Section: Introductionmentioning

confidence: 99%

Fracture Performance Study of Carbon-Fiber-Reinforced Resin Matrix Composite Winding Layers under UV Aging Effect

Liu,

Zhou,

Zou

et al. 2024

Materials

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There is limited research on the fracture toughness of carbon-fiber-reinforced polymer (CFRP) materials under accelerated UV aging conditions. In this study, the primary focus was on investigating the influence of varying durations of ultraviolet (UV) irradiation at different temperatures on the Mode I, Mode II, and mixed-mode fracture toughness of CFRP laminates. The results indicate that with increasing UV aging duration, the material’s Mode I fracture toughness increases, while Mode II fracture toughness significantly decreases. The mixed-mode fracture toughness exhibits an initial increase followed by a subsequent decrease. Furthermore, as the aging temperature increases, the change in the fracture toughness of the material is more obvious and the rate of change is faster. In addition, the crack expansion of the composite layer of crack-containing Type IV hydrogen storage cylinders was analyzed based on the extended finite element method in conjunction with the performance data after UV aging. The results reveal that cracks in the aged composite material winding layers become more sensitive, with lower initiation loads and longer crack propagation lengths under the same load. UV aging diminishes the overall load-bearing capacity and crack resistance of the hydrogen storage cylinder, posing increased safety risks during its operational service.

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Section: Introductionmentioning

confidence: 99%

Fracture Performance Study of Carbon-Fiber-Reinforced Resin Matrix Composite Winding Layers under UV Aging Effect

Liu,

Zhou,

Zou

et al. 2024

Materials

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“…These crack paths were directional stable bending crack path, stable directional straight crack path, and directional unstable deflection crack path. Tasavori et al 16 predicted the crack propagation path on the inner surface of an axisymmetric model using the extended finite element method, and calculated and compared the stress intensity factors in the aluminum monolayer film tubes. Meanwhile, the stress intensity factors of composite laminates with different crack lengths were obtained.…”

Section: Introductionmentioning

confidence: 99%

Effect of optimized repaired structure with a hole on crack turning and fatigue life

Liao

Wang

2023

Proceedings of the Institution of Mechanical Engineers, Part E:

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A method for artificially promoting crack turning is introduced. By placing a crack-absorbing hole near the patch, the dual purpose of improving the crack deflection angle and prolonging the remaining lifespan of the repaired structure was achieved. Important components behind the patch were protected as well. The influence of the location and size of a single hole on the stress concentration and crack propagation path of an optimized repaired structure was studied using the finite element method. Simultaneously, the stress influence coefficient was introduced to characterize the “attraction” effect of stress at the edge of the opening on the crack propagation path. The results showed that the optimized patch size and the existence of holes led to the deflection of cracks toward the holes and a larger residual fatigue life. When the relative hole radius was 2.22%, the relative hole axial distance was 4% and the relative hole horizontal distance was 15.56% (with a relative patch width, length, and thickness of 35.7%, 50%, and 83.3%, respectively). The deflection angle increased and the residual fatigue life improved.

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Neutron diffraction, finite element and analytical investigation of residual strains of autofrettaged thick-walled pressure vessels

Zhang

Yang

et al. 2022

International Journal of Pressure Vessels and Piping

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Composite coating effect on stress intensity factors of aluminum pressure vessels with inner circumferential crack by X-FEM

Cited by 8 publications

References 31 publications

Fracture Performance Study of Carbon-Fiber-Reinforced Resin Matrix Composite Winding Layers under UV Aging Effect

Fracture Performance Study of Carbon-Fiber-Reinforced Resin Matrix Composite Winding Layers under UV Aging Effect

Effect of optimized repaired structure with a hole on crack turning and fatigue life

Neutron diffraction, finite element and analytical investigation of residual strains of autofrettaged thick-walled pressure vessels

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