Design and mechanical analysis of shear thickening fluid/polyurethane composite sandwich

In this paper, high density rigid polyurethane foam is used as sandwich skeleton and shear thickening fluid as material core. A shear thickening fluid/polyurethane sandwich structure with light impact resistance was designed and fabricated. High strain rate impact test was carried out. It was found...

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Bibliographic Details
Published inMATEC Web of Conferences Vol. 380; p. 1030
Main Authors Cong, Hua, Zhao, Mingmei, Zhang, Jinqiu, Liu, Yile
Format Journal Article Conference Proceeding
LanguageEnglish
Published Les Ulis EDP Sciences 2023
Subjects
Energy absorption
High strain rate
Impact resistance
Impact tests
Mechanical analysis
Peak load
polyurethane
Polyurethane foam
sandwich structure
Sandwich structures
Shear
Shear thickening (liquids)
shear thickening fluid
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Summary:In this paper, high density rigid polyurethane foam is used as sandwich skeleton and shear thickening fluid as material core. A shear thickening fluid/polyurethane sandwich structure with light impact resistance was designed and fabricated. High strain rate impact test was carried out. It was found that STF-2/PU reached the peak load of 4978N in 13 ms after receiving 20 J impact energy, and the energy absorption ratio was as high as 43%. The shear thickening fluid/polyurethane honeycomb sandwich foam prepared by secondary foaming process has stable structure and can effectively absorb impact energy to achieve good protection effect.
ISSN:2261-236X
2274-7214
2261-236X
DOI:10.1051/matecconf/202338001030