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Study of creep polystyrene foam (EPS) in constant compressive stresses using statistical design of experiments

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Date
2017
Author
Vaitkus, Saulius
Zhukov, Aleksey
Gnip, Ivan
Bobrova, Ekaterina
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Abstract
The results obtained in long-term testing under constant compressive stress of the cut from the Slabs EPS 50/100 and EPS 150 with the density ranging from 15 to 24 kg/m 3, which were manufactured by the same manufacturer by foaming EPS solid granules (beads) in closed volume. The method of mathematical and statistical experimental design optimization models taking into account the thickness of specimens is proposed to determine the creep compliance the creep strain. It should be noted that the abstained equations may be used in practice for estimating the creep strains for the load time of 10 years.
 
Представлены результаты длительных испытаний при сжатии плит полистирольного пенопласта плотностью (15–24) кг/м3, изготовленных беспрессовым способом – вспениванием в замкнутом объеме сырья в виде бисера (твердых гранул). Методом статистического планирования эксперимента получены модели оптимизации толщины образцов для определения податливости, деформации ползучести. Полученные уравнения могут использоваться в практической деятельности при оценке деформаций ползучести материала для упреждения на 10 лет.
 
Issue date (year)
2017
URI
https://etalpykla.vilniustech.lt/handle/123456789/118652
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  • Konferencijų pranešimų santraukos / Conference and Meeting Abstracts [3431]

 

 

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