Delamination Buckling Of Composite Materials

Author: L. Kachanov
Editor: Springer Science & Business Media
ISBN: 940092819X
File Size: 52,20 MB
Format: PDF
Read: 9995
Download

LIOn Delamination of Laminated Composites (a) Fiber-Reinforced Composites Considerable technological advances in the production of high-strength fibers (graphite, boron, etc.) have led to a wide use of light high-strength composite materials (graphite epoxy, boron-epoxy, etc.). It is expedient, to make thin walled composite rods, plates, and shells from such materials. Plates can be made by bonding a set of unidirectional thin fiber layers, Fig.l.l. Such plates are orthotropic, as a rule. A random short-fiber composite is shown in Fig. 1.2. Fiber-reinforced composites are widely used in thin-walled aircraft structures because of their specific high strength. For example, the graphite-epoxy composite is characterized by a unidirectional tensile strength of 1.4 GPa while the density is 1.6 Mg/rrt? . For comparison, we may take a steel (steel 4340) whose corresponding properties are identified by values like 1.2 GPa and 7.8 Mg/rrt? . 1. INTRODUCTION Figure 1.1 2 1.1. On Delamination of Laminated Composites Figure 1.2 3 1. INTRODUCTION It is characteristic for laminated plastic material to possess a fairly low bonding. Therefore, low-velocity impacts and defects in manufacturing lead to local delamination. (b) Linear Problems of Delamination Buckling Delamination can significantly reduce the compressive strength and stiffness of the laminate. Local delamination can be considered as a crack in the bond. Under buckling there appears a high interlaminate stress at the crack edge that leads to a spreading of the crack. Delamination growth can lead to structural instability.
Delamination Buckling of Composite Materials
Language: en
Pages: 96
Authors: L. Kachanov
Categories: Science
Type: BOOK - Published: 2011-10-18 - Publisher: Springer

LIOn Delamination of Laminated Composites (a) Fiber-Reinforced Composites Considerable technological advances in the production of high-strength fibers (graphite, boron, etc.) have led to a wide use of light high-strength composite materials (graphite epoxy, boron-epoxy, etc.). It is expedient, to make thin walled composite rods, plates, and shells from such materials.
Delamination Buckling of Composite Materials
Language: en
Pages: 96
Authors: L. Kachanov
Categories: Science
Type: BOOK - Published: 2012-12-06 - Publisher: Springer Science & Business Media

LIOn Delamination of Laminated Composites (a) Fiber-Reinforced Composites Considerable technological advances in the production of high-strength fibers (graphite, boron, etc.) have led to a wide use of light high-strength composite materials (graphite epoxy, boron-epoxy, etc.). It is expedient, to make thin walled composite rods, plates, and shells from such materials.
Proceedings of the Tenth International Conference on Composite Materials: Structures
Language: en
Pages: 768
Authors: Anoush Poursartip, Ken Street
Categories: Technology & Engineering
Type: BOOK - Published: 1995 - Publisher: Woodhead Publishing

Volume 5: Structures
Buckling of Shell Structures, on Land, in the Sea and in the Air
Language: en
Pages:
Authors: J.F. Jullien
Categories: Architecture
Type: BOOK - Published: 2014-04-21 - Publisher: CRC Press

Books about Buckling of Shell Structures, on Land, in the Sea and in the Air
Proceedings of the Second International Conference on Structural Stability and Dynamics
Language: en
Pages: 1059
Authors: G. R. Liu, K. K. Ang
Categories: Mathematics
Type: BOOK - Published: 2003 - Publisher: World Scientific

ICSSD 2002 is the second in the series of International Conferences on Structural Stability and Dynamics, which provides a forum for the exchange of ideas and experiences in structural stability and dynamics among academics, engineers, scientists and applied mathematicians. Held in the modern and vibrant city of Singapore, ICSSD 2002