Paper Titles
Mechanics Characteristics and Failure Criteria of Concrete Confined by Lateral Stress after Suffering Cycles of Freezing and Thawing in Seawater
p.245
Microfibril-Reinforced Composites from PE/PET Blends: Effect of Reinforcement Size on Oxygen Permeability
p.249
Large Deformation and Failure Mechanism of Plain Woven Composite in Bias Extension Test
p.253
Mechanical Behaviours for Textile Composites by FEM Based on Damage Mechanics
p.257
Low-Velocity Impact Damage Prediction of Composite Laminates Using Linearized Contact Law
p.261
Effect of Coupling Agents and Particle Size on Mechanical Performance of Polyethylene Composites Comprising Wollastonite Micro-Fibres
p.265
Ti-Based Nanostructure Coating on Mg Alloys
p.269
Effects of Chromium Particle on Elevated Temperature Tensile Strength of Cu-Cr Alloy
p.273
Morphology of Chromium in Cu- 2.0%~4.2%Cr Alloys
p.277

Low-Velocity Impact Damage Prediction of Composite Laminates Using Linearized Contact Law

Article Preview

Abstract:

Recently, author had presented that impact force history of composite laminates subjected to low-velocity impact could be well analyzed using linearized contact law instead of the modified Hertzian contact law. If the linearized contact law concept is applied in impact response analysis, the impact problem can be transformed as a general structural analysis problem, so general purpose FEM software can be used in this kind of impact response analysis. In the present study it will be shown that impact damage, specially delamination area, as well as impact response can be well analyzed using the linearized contact law concept. In order to accurately predict delamination area, geometrical nonlinear analysis considering large deflection effect of plate has been performed and thermal stress analysis to consider thermal residual strain induced in curing process has been performed. Also, a proper failure criterion for delamination estimation has been used. In this failure criterion, in-situ strength values, obtained through matrix crack onset analysis have been used. Finally, analytically predicted delamination areas have been compared with experimental results. It shows that this analytical procedure can well predict delamination area of composite laminates subjected to the low-velocity impact.

You might also be interested in these eBooks
Advances in Composite Materials and Structures View Preview

Info:

Periodical:

Key Engineering Materials (Volumes 334-335)

Pages:

261-264

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.334-335.261

Citation:

Cite this paper

Online since:

March 2007

Authors:

Ik Hyeon Choi

Keywords:

Composite Laminate, Damage Prediction, Linearized Contact Law, Low Velocity Impact (LVI)

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2007 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] I. H. Choi and C. H. Lim: Composite Structures 66 (2004), p.125.

Google Scholar

[2] I. H. Choi: Composite Structures 75 (2006), p.582.

Google Scholar

[3] H. Y. Choi and F. K. Chang: J. Composite Materials 26 (1992), p.2134.

Google Scholar

[4] K. N. Shivakumar, W. Elber and W. Illg: Trans. of ASME, J. Applied Mech. 52 (1985), p.674.

Google Scholar

[5] G. Caprino, I. C. Visconti and A. D. Ilio: Composite Structures 2 (1984), p.261.

Google Scholar

[6] C. S. Hong and I. Lee: Agency for Defense Development Report, ATRC-411-92529 (Korea 1992).

Google Scholar

[7] I. H. Choi: Ph. D. Thesis, Korea Advanced Institute of Science and Technology (Korea 1994).

Google Scholar

[8] S. G. Lim and C. S. Hong: J. Composite Materials 23 (1989), p.695.

Google Scholar