A study into crack initiation and growth in peroxide-cured silica-filled polybutadiene rubber vulcanisate under a cyclic loading condition
نویسندگان
چکیده
Abstract Crack initiation and propagation in a peroxide-cured polybutadiene rubber reinforced with silanised silica nanofiller were studied under cyclic loading condition. The fatigue properties of the semi-transparent samples tested at constant strain amplitude, test frequency temperature. Initiation subsequent growth cracks observed using an optical microscope as function number cycles until failed, indicating that there are two distinct stages failure vulcanisate. initiated after was flexed for about 2817 then grew from 500 μm reached to critical length 4.6 mm followed further 897 cycles, leading catastrophic samples. Correlation between rate crack growth, d c /d n , energy release rate, T investigated power law index, new expression measurement life vulcanisate proposed.
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ژورنال
عنوان ژورنال: Journal of Rubber Research
سال: 2021
ISSN: ['2524-3993', '1511-1768']
DOI: https://doi.org/10.1007/s42464-020-00074-4