Finite element modelling of axially crushed silk/epoxy composite square tubes

被引：37

作者：

Oshkovr, S. A. ^{[1
]}

Taher, S. T. ^{[1
]}

Oshkour, A. A. ^{[2
]}

Ariffin, A. K. ^{[3
]}

Azhari, C. H. ^{[3
]}

机构：

[1] Dept Mech & Mfg Engn, DK-9100 Aalborg, Denmark

[2] Univ Malaya, Dept Biomed Engn, Kuala Lumpur, Malaysia

[3] Univ Kebangsaan Malaysia, Dept Mech & Mat Engn, Bangi 43600, Malaysia

来源：

COMPOSITE STRUCTURES | 2013年 / 95卷

关键词：

Natural fibres; Composites; Mechanical properties; Finite element model; Crashworthiness parameters; ENERGY-ABSORPTION CAPABILITY; HYBRID TUBES; CRASHWORTHINESS; PREDICTION; COLLAPSE;

D O I：

10.1016/j.compstruct.2012.07.032

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The conditions of test obtained experimentally were simulated using Dytran a non-linear finite element explicit analysis software implemented to the simulation since this mimics the characteristics of the behaviour of the crashworthiness. Results from the finite element analysis were validated against the experimental results and a good agreement between two approaches was observed i.e. the average errors of total absorbed energy (E-total) (6.1%) and crush force efficiency (CFE) (9%) were obtained. The simulation depicted catastrophic failures similar to experimental results i.e. local buckling and mid length buckling failure in the specimens in the resulting geometries. This agreement builds confidence in the future use of non-linear finite element for the design of silk/epoxy composite structure subjected to crash loading in energy-absorbing applications such as in the automotive as well as in the aircraft industries. (c) 2012 Elsevier Ltd. All rights reserved.

引用

页码：411 / 418

页数：8

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