The effect of FRP thickness on energy absorption of metal-FRP square tubes subjected to axial compressive loading

The effect of FRP thickness on energy absorption of metal-FRP square tubes subjected to axial compressive loading

Hybrid square tubes made from S2 glass/epoxy composites and 304 stainless steel with different fiber orientation, stacking sequence, and thickness are tested under quasi-static loading. The thickness of composite section is identified as an important parameter that can change the crushing mode of st...

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Veröffentlicht in:Composite structures 2015-10, Vol.130, p.44-50
Hauptverfasser: Kalhor, Roozbeh, Case, Scott W.
Format: Artikel
Sprache:eng
Schlagworte:
Austenitic stainless steels
Chamfering
Composite structures
Crushing
Energy absorption
Fiber orientation
Low velocity impact
Metal-FRP hybrid square tube
Polymer matrix composites
Stainless steels
Triggering mechanism
Tubes
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Beschreibung
Zusammenfassung:Hybrid square tubes made from S2 glass/epoxy composites and 304 stainless steel with different fiber orientation, stacking sequence, and thickness are tested under quasi-static loading. The thickness of composite section is identified as an important parameter that can change the crushing mode of stainless steel tubes and also, in some cases, lower its energy absorption due to change in plastic deformation. In addition, a new triggering design is introduced that can increase the crushing load efficiency (ratio of mean crushing to maximum load) up to 13% compared to a chamfered trigger.
ISSN:0263-8223
1879-1085
DOI:10.1016/j.compstruct.2015.04.009