Wearing heavy protective boots, which can weigh up to 4.4 kg, was known to trigger rapid fatigue as evidenced by approximately nine times greater metabolic rate per unit mass, compared to SCBA (Taylor et al. 2011).
The blade fractured at root of the airfoil due to high cycle fatigue as evidenced by beach marks and microscopic striations on the leading edge of the blade.
Three studies demonstrated that balance performance during quiet stance was poorer after fatigue, as evidenced by reduced single limb stance time [ 23] and increased postural sway [ 19, 24].
Three studies demonstrated that balance performance during voluntary movements was poorer after fatigue, as evidenced by impaired functional reach [ 23], reduced speed and power of sit-to-stand repetitions [ 21] and altered gait parameters [ 22].
Significantly higher muscle fatigue, as evidenced by a greater reduction in the mean power frequency, was found in groups with mild dysfunction (−13.15%, P < 0.0000), moderate dysfunction (−18.55%, P < 0.0000), and severe dysfunction (−23.02%, P < 0.0341) according to the Di index.
Indeed, from the unveiling of a new armoured personnel carrier with more computer wizardry in the cab than an Airbus to the debut appearance at DSEI of Estonia, whose stand boasted a scale-model of a mobile bomb shelter and morgue accessorised with a Ken and Barbie in fatigues, evidence of the global race for arms trade dollars abounded.
The presence of pores promotes more unpredictable fatigue behavior, as evidenced by data scatter.
Substantial improvement of fatigue life is evidenced in comparison with conventional coarse-grain materials.
This and environment-assisted fatigue crack growth were evidenced by the deviation in fatigue crack growth trajectory (ΔK* vs. K∗max curve) from the pure fatigue line where ΔK*= Kmax*.
Concrete fatigue presents probabilistic behaviour evidenced by the wide scatter of cycles to failure under the same conditions.
