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Statements

Subject Item
n2:RIV%2F70883521%3A28110%2F12%3A43869180%21RIV13-MSM-28110___
rdf:type
n14:Vysledek skos:Concept
dcterms:description
Sandwich construction is a composite material structure combining low weight, high strength and good dynamic properties. Typically a sandwich composite consists of three main parts: two thin, stiff and strong facing layers separated by a thick, light and weaker inner core. The faces are adhesively bonded to the core to obtain a load transfer between the components. This way the properties of each separate component is utilized to the structural advantage of the whole assembly leading to a very high stiffness-to-weight and high bending strength-to-weight ratio. As a result sandwich components achieve the same structural performance as conventional materials with less weight. [1] The material characterization described in the paper is aimed at the structural design of the end cub for a high speed train made of composite sandwich materials. A sandwich structure was considered, made of glass fibber polyester face sheets with a polymeric foam core. Initially, the material properties and the rate sensitivity of the skin and core materials were investigated through a series of static and quasi-static tests. Static and dynamic impact tests were then run on the sandwich structure. For all materials tested, no significant strain-rate effects were observed over the range of test conditions investigated in the study. Results show that the structural response of the sandwich depends primarily on the strength properties of the foam core material. Sandwich peel test is intended for determining the comparative peel resistance of adhesive bonds between facing and cores of sandwich constructions, when tested under specified test conditions. One method, the climbing drum peel method, is mot applicable when the facing being peeled are relatively thin, but it can not be applicable in tested composite structures. Peel resistance was tested by modified experimental setup. Sandwich construction is a composite material structure combining low weight, high strength and good dynamic properties. Typically a sandwich composite consists of three main parts: two thin, stiff and strong facing layers separated by a thick, light and weaker inner core. The faces are adhesively bonded to the core to obtain a load transfer between the components. This way the properties of each separate component is utilized to the structural advantage of the whole assembly leading to a very high stiffness-to-weight and high bending strength-to-weight ratio. As a result sandwich components achieve the same structural performance as conventional materials with less weight. [1] The material characterization described in the paper is aimed at the structural design of the end cub for a high speed train made of composite sandwich materials. A sandwich structure was considered, made of glass fibber polyester face sheets with a polymeric foam core. Initially, the material properties and the rate sensitivity of the skin and core materials were investigated through a series of static and quasi-static tests. Static and dynamic impact tests were then run on the sandwich structure. For all materials tested, no significant strain-rate effects were observed over the range of test conditions investigated in the study. Results show that the structural response of the sandwich depends primarily on the strength properties of the foam core material. Sandwich peel test is intended for determining the comparative peel resistance of adhesive bonds between facing and cores of sandwich constructions, when tested under specified test conditions. One method, the climbing drum peel method, is mot applicable when the facing being peeled are relatively thin, but it can not be applicable in tested composite structures. Peel resistance was tested by modified experimental setup.
dcterms:title
Design and verification of sandwich structures for high-speed trains Design and verification of sandwich structures for high-speed trains
skos:prefLabel
Design and verification of sandwich structures for high-speed trains Design and verification of sandwich structures for high-speed trains
skos:notation
RIV/70883521:28110/12:43869180!RIV13-MSM-28110___
n14:predkladatel
n15:orjk%3A28110
n3:aktivita
n17:V
n3:aktivity
V
n3:dodaniDat
n4:2013
n3:domaciTvurceVysledku
n12:3090604 n12:8439591 n12:6218784
n3:druhVysledku
n10:D
n3:duvernostUdaju
n19:S
n3:entitaPredkladatele
n11:predkladatel
n3:idSjednocenehoVysledku
130279
n3:idVysledku
RIV/70883521:28110/12:43869180
n3:jazykVysledku
n21:eng
n3:klicovaSlova
flexural tests, impact test, modified peel test, adhesion layer, sandwich structures
n3:klicoveSlovo
n5:flexural%20tests n5:modified%20peel%20test n5:adhesion%20layer n5:impact%20test n5:sandwich%20structures
n3:kontrolniKodProRIV
[F60AAC6E4778]
n3:mistoKonaniAkce
Levoča
n3:mistoVydani
Košice
n3:nazevZdroje
9th International Conference - Local Mechanical Properties 2012
n3:obor
n20:JI
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
3
n3:rokUplatneniVysledku
n4:2012
n3:tvurceVysledku
Fojtl, Ladislav Žaludek, Milan Rusnáková, Soňa
n3:typAkce
n13:EUR
n3:zahajeniAkce
2012-11-07+01:00
s:numberOfPages
3
n16:hasPublisher
Technická univerzita v Košiciach
n18:isbn
978-80-553-1163-0
n9:organizacniJednotka
28110