TY - JOUR
T1 - Fatigue crack growth of natural rubber/butadiene rubber blend containing waste tyre rubber powders
AU - Abang, Ismawi Hassim DH
AU - Abraham, F
AU - Summerscales, J
AU - Brown, P
PY - 2021/5
Y1 - 2021/5
N2 - Fatigue crack growth in NR/BR compound and the effect of two different types of recycled rubber powder (RRP) i.e. micronized cryo-ground 74 μm and ambient-ground 400 μm were studied using fracture mechanics approach. Absolute and relative hysteresis losses using single-edge notch tensile (SENT) specimens were determined with a displacement-controlled strain compensating for permanent set of the samples throughout the Fatigue Crack Growth (FCG) experiments. Results indicated a correlation between absolute/relative hysteresis loss and fatigue crack growth rate under specific dynamic strain amplitudes. Differences in relative hysteresis loss showed that additional energy dissipation, due to multiple new crack surfaces at the crack tip, contributes to the FCG of the RRP compounds. At higher tearing energy, beside other factors affecting the FCG performance of the RRP compounds, both higher absolute and relative hysteresis loss are slightly detrimental to the crack growth rates.
AB - Fatigue crack growth in NR/BR compound and the effect of two different types of recycled rubber powder (RRP) i.e. micronized cryo-ground 74 μm and ambient-ground 400 μm were studied using fracture mechanics approach. Absolute and relative hysteresis losses using single-edge notch tensile (SENT) specimens were determined with a displacement-controlled strain compensating for permanent set of the samples throughout the Fatigue Crack Growth (FCG) experiments. Results indicated a correlation between absolute/relative hysteresis loss and fatigue crack growth rate under specific dynamic strain amplitudes. Differences in relative hysteresis loss showed that additional energy dissipation, due to multiple new crack surfaces at the crack tip, contributes to the FCG of the RRP compounds. At higher tearing energy, beside other factors affecting the FCG performance of the RRP compounds, both higher absolute and relative hysteresis loss are slightly detrimental to the crack growth rates.
KW - Fatigue crack growth
KW - Hysteresis
KW - Natural Rubber/Butadiene Rubber Blend
KW - Recycled Rubber Powder
UR - https://pearl.plymouth.ac.uk/context/secam-research/article/1761/viewcontent/Dayang_SSP_13_5_20.pdf
U2 - 10.4028/www.scientific.net/SSP.317.293
DO - 10.4028/www.scientific.net/SSP.317.293
M3 - Article
SN - 1012-0394
VL - 317
SP - 293
EP - 299
JO - Solid State Phenomena
JF - Solid State Phenomena
IS - 0
ER -