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Composite Stress Corrosion Cracking Damage Mechanism of Metal-Lined Fiber Hoop-Wrapped Composite Cylinders

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This study aims to investigate the stress corrosion cracking (SCC) damage propagation of the wound layer of metal-lined fiber hoop-wrapped composite cylinders by using a new multi-scale damage model, including macro and micro levels. The multi-scale model with an embedded cell includes a detailed microstructure of the composite. Scanning electron microscopy (SEM) is used to observe the SCC in the wound-layer composites and established the multi-scale model of the metal-lined fiber hoop-wrapped composite cylinder. Two numerical damage multi-scale models are used for the simulation of the damage evolution. Multi-scale research indicates that the metal-lined fiber hoop-wrapped cylinder winding layer crack will be extended along the axial and radial directions under the effect of stress corrosion, but priority will be extended in the axial direction. Moreover, these phenomena are in good agreement with what the SEM observed. Based on the microscopic study, we use the macroscale model to explore the effects of circumferential crack on the SCC propagation. This finding explains the propagation mechanism of the SCC on the wound layer of the cylinders by combining the method of observation and simulation.
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Keywords: COMPRESSED NATURE GAS CYLINDER; DAMAGE PROPAGATION; MULTI-SCALE MODEL; STRESS CORROSION CRACKING

Document Type: Research Article

Publication date: September 1, 2018

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  • Science of Advanced Materials (SAM) is an interdisciplinary peer-reviewed journal consolidating research activities in all aspects of advanced materials in the fields of science, engineering and medicine into a single and unique reference source. SAM provides the means for materials scientists, chemists, physicists, biologists, engineers, ceramicists, metallurgists, theoreticians and technocrats to publish original research articles as reviews with author's photo and short biography, full research articles and communications of important new scientific and technological findings, encompassing the fundamental and applied research in all latest aspects of advanced materials.
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