Stiffness analysis of corrugated laminates under large deformation

被引：12

作者：

Thurnherr, C. ^{[1
]}

Ruppen, L. ^{[1
]}

Brandli, S. ^{[1
]}

Franceschi, C. M. ^{[1
]}

Kress, G. ^{[1
]}

Ermanni, P. ^{[1
]}

机构：

[1] ETH, Dept Mech & Proc Engn, Lab Composite Mat & Adapt Struct, Tannenstr 3, CH-8092 Zurich, Switzerland

来源：

COMPOSITE STRUCTURES | 2017年 / 160卷

基金：

瑞士国家科学基金会;

关键词：

Corrugated laminates; Non-linearity; Flexible skins; Anisotropy; MORPHING AIRCRAFT; EQUIVALENT MODELS; FSDT;

D O I：

10.1016/j.compstruct.2016.10.079

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

This paper presents a detailed investigation about the geometric non-linear stiffness behavior of corrugated laminates in six different load cases. The considered tensile, bending, and shear load cases allow the modeling with a unit-cell approach assuming a generalized plane strain state. The torsional load case is more complex. There the mechanical response depends on the number of unit-cells and the width of the samples in case of geometric non-linearities. We first identify the load cases that show a non-linear stiffness response under large deformation. Then the non-linear behavior is analyzed in detail using numerical simulation and we aim for mechanical explanations to describe the non-linear behavior. The FE simulations of the torsional load case are validated using experiments with 3D printed samples. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：457 / 467

页数：11

共 22 条

[1] A Review of Morphing Aircraft [J].

Barbarino, Silvestro ;

Bilgen, Onur ;

Ajaj, Rafic M. ;

Friswell, Michael I. ;

Inman, Daniel J. .

JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES, 2011, 22 (09) :823-877

[2] Evaluation of equivalent stiffness properties of corrugated board [J].

Biancolini, ME .

COMPOSITE STRUCTURES, 2005, 69 (03) :322-328

[3] EQUIVALENT ORTHOTROPIC PROPERTIES OF CORRUGATED SHEETS [J].

BRIASSOULIS, D .

COMPUTERS & STRUCTURES, 1986, 23 (02) :129-138

[4] The mechanics of composite corrugated structures: A review with applications in morphing aircraft [J].

Dayyani, I. ;

Shaw, A. D. ;

Saavedra Flores, E. L. ;

Friswell, M. I. .

COMPOSITE STRUCTURES, 2015, 133 :358-380

[5] Equivalent models of composite corrugated cores with elastomeric coatings for morphing structures [J].

Dayyani, Iman ;

Friswell, Michael I. ;

Ziaei-Rad, Saeed ;

Saavedra Flores, E. I. .

COMPOSITE STRUCTURES, 2013, 104 :281-292

[6] Numerical and Experimental Investigations on Mechanical Behavior of Composite Corrugated Core [J].

Dayyani, Iman ;

Ziaei-Rad, Saeed ;

Salehi, Hamid .

APPLIED COMPOSITE MATERIALS, 2012, 19 (3-4) :705-721

[7]

Hirschel E-H, 2001, LUFTFAHRTFORSCHUNG D

[8]

Jones R.M., 1999, Mechanics of composite materials, V2nd

[9] Modeling of a corrugated dielectric elastomer actuator for artificial muscle applications [J].

Kadooka, Kevin ;

Taya, Minoru ;

Naito, Keishi ;

Saito, Makoto .

ELECTROACTIVE POLYMER ACTUATORS AND DEVICES (EAPAD) 2015, 2015, 9430

[10] Corrugated laminate analysis: A generalized plane-strain problem [J].

Kress, G. ;

Winkler, M. .

COMPOSITE STRUCTURES, 2011, 93 (05) :1493-1504

← 1 2 3 →