Analysis of low-velocity impact on flax/PLA composites using a strain rate sensitive model

被引：15
|
作者：
Jalon, E. [1 ]
Hoang, T. [1 ]
Rubio-Lopez, A. [2 ]
Santius, C. [1 ]
机构：
[1] Univ Carlos III Madrid, Dept Continuum Mech & Struct Anal, Avda Univ 30, Leganes 28911, Spain
[2] INDRA TGP, Ctra Loeches 9, Torrejon De Ardoz 28850, Spain
来源：
COMPOSITE STRUCTURES | 2018年 / 202卷
关键词：
Biocomposite; Impact behaviour; Finite element analysis (FEA); Natural fibres; UNIDIRECTIONAL COMPOSITES; PROGRESSIVE-FAILURE; FIBERS; BEHAVIOR; COMPRESSION; BEAMS;
D O I：
10.1016/j.compstruct.2018.02.080
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
The mechanical behaviour of conventional composites is usually assumed as linear-elastic up to failure. However, the mechanical behaviour of natural fibres based composites is non-linear with a significant influence of strain-rate. This study presents a FEM model to analyse the impact behaviour of flax/PLA composites. The constitutive model includes the consideration of plastic strains and the influence of strain rate. The model was validated through comparison with low-velocity impact tests. Numerical prediction were in agreement with experimental results conducted with two impactor nose at different impact energies.
引用
收藏
页码：511 / 517
页数：7
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