Bearing strength and failure behavior of pinned hybrid glass-flax composite laminates

被引：41

作者：

Fiore, V ^{[1
]}

Calabrese, L. ^{[2
]}

Scalici, T. ^{[1
]}

Bruzzaniti, P. ^{[2
]}

Valenza, A. ^{[1
]}

机构：

[1] Univ Palermo, Dept Civil Environm Aerosp & Mat Engn, Viale Sci,Edificio 6, I-90128 Palermo, Italy

[2] Univ Messina, Dept Engn, I-98166 Messina, Italy

来源：

POLYMER TESTING | 2018年 / 69卷

关键词：

Bearing; Hybrid laminate; Glass; Flax; Failure modes; Mechanical joints; MECHANICAL-PROPERTIES; FIBER COMPOSITES; TENSILE; IMPACT; MATRIX; DAMAGE; PERFORMANCES; DURABILITY; CONTACT; JOINTS;

D O I：

10.1016/j.polymertesting.2018.04.041

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The aim of the present work is to evaluate the influence of external layers of glass woven fabric on the pin-hole strength of flax/epoxy laminates. Single lap bearing tests were carried out to evaluate the fastened joint performances depending on laminate stacking sequence. In order to better identify the mechanical behavior of the hybrid laminate, full glass and flax laminates were also compared. In particular, bearing stress and failure mechanisms were investigated at varying joint geometry. Furthermore, an experimental failure map, clustering main failure modes of pinned hybrid composite laminate, was used to better clarify the relationship between mechanical failure and geometrical parameters of joints. The experimental results showed that the presence of external layers of glass fabric in a flax/epoxy laminate positively influences the mechanical performance of mechanically fastened joints. Furthermore, in a hybrid laminate, bearing fracture mechanism occurs for a large range of joint geometries, thus supporting the joining design of flax based composite

引用

页码：310 / 319

页数：10

共 55 条

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