Effect of stress ratio on tension-tension fatigue behaviour of woven angle ply GFRP laminates

Radhakrishnan, P.M.; Ramajeyathilagam, K.

doi:10.1016/j.ijfatigue.2023.107633

Cited by 9 publications

(1 citation statement)

References 23 publications

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“…Similar observations have also been reported in other experimental studies for GFRP specimens at a stress ratio of 0.1. 23,49 Subsequently, failure strain decreases as the stress ratio increases because the amplitude of the loading decreases with an increase in the stress ratio. The slope of the hysteresis loop changes, which represent the discrepancy in fatigue stiffness, as well as the area of the hysteresis loop, it results in a variation of dissipated energy throughout the cyclic loading.…”

Section: Hysteresis Loopsmentioning

confidence: 99%

Effect of stress ratio on the tension–tension fatigue behavior of tungsten carbide nanoparticles toughened GFRP

Radhakrishnan,

Bharadwaj,

Sudhi

et al. 2023

Fatigue Fract Eng Mat Struct

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The fatigue behavior of woven ply (0/90°) glass fiber reinforced plastic (GFRP) laminates filled with 2 wt.% of tungsten carbide nano‐powder at different stress ratios, 0.1 and 0.3, was investigated. Specimens were subjected to constant amplitude fatigue loading for three stress levels, 80%, 70%, and 60%, of ultimate tensile strength at each stress ratio for both neat GFRP and tungsten carbide modified GFRP (GFRP‐WC). The fatigue life was enhanced at all stress levels in neat GFRP composites with an increase in stress ratio from 0.1 to 0.3. In addition, incorporation of nanoparticles also increases fatigue life at all stress levels for both stress ratios. The addition of nanoparticles acts as a barrier to crack propagation, which leads to a significant effect on the evolution of fatigue stiffness, cyclic creep strain, and dissipated energy during cyclic loading at both stress ratios.

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Section: Hysteresis Loopsmentioning

confidence: 99%