Effects of Amount of Glass Fiber Laminate Skins in Sandwich Composite of Filled Core

Cheloni, João Pedro Monteiro; Silveira, Márcio Eduardo; Silva, Leandro José da

doi:10.1590/1980-5373-mr-2018-0025

Cited by 2 publications

(1 citation statement)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Sandwich structures, when under cyclic loading, are subject to core shear failure and face yielding. The occurrence of each failure mode depends on the thickness and strength of the faces [6][7][8]. Andreazza et al [7], using a solid core of cork agglomerate and glass fiber reinforced epoxy sheets, showed that the composites can sustain infinite cycles for maximum loading less than 45%.…”

Section: Introductionmentioning

confidence: 99%

Fatigue and Failure Analysis of Sandwich Composites using Two Types of Cross-Ply Glass Fibers Laminates and Epoxy Resin

Cheloni

Silveira²,

Lopes³

et al. 2022

J. Res. Updates Polym. Sci.

View full text Add to dashboard Cite

Sandwich structures have become effective structural elements for engineering applications due to their good design flexibility. Understanding the material behavior under static and dynamic loads, as well as the failure mechanisms of these sandwich structures, is of great importance. This work evaluates the fatigue and static bending behavior of epoxy resin specimens and sandwich composites composed of an epoxy resin core with glass fiber laminated faces. The fatigue life, failure modes, and stiffness degradation of these specimens are determined experimentally. The specimens were cycled under constant amplitude and monitored by a data acquisition system that allowed continuous data collection. Three stages of failure were identified using microscope analyses and stiffness degradation curves. In the case of an imposed displacement of 2 mm, the sandwich structures were shown to have a significantly lower fatigue life than the epoxy resin specimens.

show abstract