Rigidity of child’s cot during fatigue test

The subject of this paper is a research of child's cat quality during fatigue test and influence of dynamic loading on construction of child's cot. Research was not carried out before. The aim of an research was to determine the influence of acting force time on displacement of child's cot and wood species, and type of construction of children's cots on rigidity and durability during fatigue test. The modified European standard EN 716 was used in the research in such a way that a displacement, normally measured by the standard, was measured here. The research was carried out on three groups of samples consisting of six children's cots made of beech, pine and fir. The research results clearly show that the samples made of beech had greatest rigidity, the samples made of pine had middle rigidity while the samples made of fir had lowest rigidity. The research hypothesis that greater duration of loading will produce greater deformations of child's cot was not confirmed.