6533b81ffe1ef96bd1277c1e

RESEARCH PRODUCT

Experimental design of the bearing performances of flax fiber reinforced epoxy composites by a failure map

Luigi CalabresePaolo BruzzanitiAntonino ValenzaT. ScaliciVincenzo Fiore

subject

Materials science02 engineering and technologyMechanical jointFlax compositeIndustrial and Manufacturing Engineeringlaw.inventionFlax fiber0203 mechanical engineeringlawUltimate tensile strengthComposite materialBearing (mechanical)Mechanical EngineeringFailure modeEpoxyComposite laminates021001 nanoscience & nanotechnologyBearing; Failure modes; Flax composites; Mechanical joints; Natural fibers; Ceramics and Composites; Mechanics of Materials; Mechanical Engineering; Industrial and Manufacturing EngineeringSettore ING-IND/22 - Scienza E Tecnologia Dei Materiali020303 mechanical engineering & transportsContact mechanicsMechanics of Materialsvisual_artMechanical jointBearingCeramics and CompositesFracture (geology)visual_art.visual_art_mediumNatural fibers0210 nano-technology

description

Abstract This paper represents the first effort aimed to the investigation of the pin/hole contact stress and failure mechanisms of epoxy composites reinforced with woven flax fabrics, underwent to tensile bearing tests. In particular, the maximum loads and failure modes are evaluated at varying the laminate geometrical configuration. In order to optimize the use of polymer composites reinforced with flax fibers in structural applications, an experimental failure map, identifying main failure modes of mechanically fastened joints, is obtained as function of hole diameter, distance of the hole from the free edge of the laminate and laminate width. Moreover, a theoretical approach based on the observation that a particular fracture mechanism occurs when its threshold fracture load is lower than the loads of the other competitive ones, is proposed. Main goal of this paper is to give a simple experimental methodology to support the joining design of natural composite laminates reinforced with woven flax fabrics.

yearjournalcountryeditionlanguage
2018-09-01Composites Part B: Engineering
https://doi.org/10.1016/j.compositesb.2018.04.044