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Keywords: laminated composites
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eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2001
ISBN-10: 0-8031-2862-2
ISBN: 978-0-8031-2862-0
... predict anticipated failure modes. curved beams laminated composites sandwich structures spring-in single-piece structures Scott O. Peck I Curved Laminated Beams Subjected to Shear Loads, Moments, and Temperature Changes REFERENCE: Peck. S. O., "Curved Laminated Beams Subjected to Shear Loads...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1998
ISBN-10: 0-8031-2609-3
ISBN: 978-0-8031-2609-1
... Because composite laminates are very susceptible to impact loading even at low velocity, low-velocity impact is an important subject in laminated composite analysis. The impact-induced damage is usually invisible to the naked eye and can cause serious structural degradation. Many low-velocity...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1997
ISBN-10: 0-8031-2411-2
ISBN: 978-0-8031-2411-0
... I effects irrespective of n . fatigue (materials) fracture (materials) composite materials laminated composites fracture toughness delamination strain energy release rate Mode III fracture toughness tests torsion Jian Li I a n d T. K e v i n O ' B r i e n 2 Analysis...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1996
ISBN-10: 0-8031-2404-X
ISBN: 978-0-8031-2404-2
... procedures for the determination of minimum torsional stiffness to initiate Mode III delaminations are established. composite materials laminated composites fracture toughness delamination strain energy release rate torsional stiffness testing design Jian Li I and Youjiang Wang 2 Analysis...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1996
ISBN-10: 0-8031-2404-X
ISBN: 978-0-8031-2404-2
... and suitability of each of the methods. A comparison of data with predictions from a shear deformation sublaminate plate theory and finite element method (FEM) is presented. composite materials testing design laminated composites elastic tailoring test methods David A. Hooke I and Erian A. Armanios...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1995
ISBN-10: 0-8031-1996-8
ISBN: 978-0-8031-1996-3
... δa/W showed increasing resistance to crack growth for quasi-isotropic layups and constant resistance to crack growth for predominantly 90‡ fiber layups. fracture toughness laminated composites carbon/epoxy notch-tip damage X-ray radiography translaminar fracture specimen configuration...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1995
ISBN-10: 0-8031-2012-5
ISBN: 978-0-8031-2012-9
...-controlled loading under room temperature dry conditions. composite materials laminated composites delamination fatigue testing interlaminar fracture toughness mixed-mode strain energy release rate P. Sriram, l y. Khourchid,~ S. J. Hooper, t and R. H. Martin 2 Experimental Development...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1994
ISBN-10: 0-8031-1499-0
ISBN: 978-0-8031-1499-9
... of respective homogeneous structures. It is observed that, by tailoring the composition and properties of asymmetric composite laminates, their long-term performance can be improved considerably. laminated composites beam columns viscoelasticity creep buckling Aleksandra M. Vinogradov 1 Creep...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1993
ISBN-10: 0-8031-1879-1
ISBN: 978-0-8031-1879-9
... a custom loading transducer designed to allow the laminate end to twist while undergoing extension. Test results were compared with analytical predictions. laminated composites elastic tailoring hygrothermal stresses optimization methods Erian A. Armanios, t David Hooke, 1 Manohar Kamat, 1...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1993
ISBN-10: 0-8031-1879-1
ISBN: 978-0-8031-1879-9
.... composite materials laminated composites delamination fatigue testing interlaminar fracture toughness mixed-mode strain energy release rate P. Sriram, 1 Y. Khourchid, 1 and S. J. Hoopet J The Effect of Mixed-Mode Loading on Delamination Fracture Toughness REFERENCE: Sriram, P., Khourchid, Y...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1993
ISBN-10: 0-8031-1867-8
ISBN: 978-0-8031-1867-6
... A continuum-damage-mechanics-based model is proposed for the analysis of the progressive failure process in laminated composite structures. The laminate's response is determined by nonlinear constitutive equations that account for each type of matrix-dominated damage through strain-like internal...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1993
ISBN-10: 0-8031-1498-2
ISBN: 978-0-8031-1498-2
... An investigation was performed to study the delamination propagation induced by matrix cracking in graphite/epoxy laminated composite beams subjected to transverse concentrated loading. The major focus of the study was to fundamentally understand the interaction between matrix cracking...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1990
ISBN-10: 0-8031-1287-4
ISBN: 978-0-8031-1287-2
..., including the microbuckling models, published in the literature. The results of the present study show that even a very small-scale local ply curvature produces a noticeable effect on the mechanical constitutive behavior of a laminated composite. composite materials laminated composites main load...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1988
ISBN-10: 0-8031-0980-6
ISBN: 978-0-8031-0980-3
... Models for predicting growth of delaminations in laminated composites under fatigue loading are needed for development of different types of criteria, namely, (1) design criteria for damage tolerance and durability of composite components, (2) accept/reject criteria for manufactured parts...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1988
ISBN-10: 0-8031-0980-6
ISBN: 978-0-8031-0980-3
... variables depend on the components of the displacements created by the delamination. laminated composites damage graphite/epoxy continuum mechanics plate theory internal state variables matrix cracking delamination David H. Allen,^ Scott E. Groves,^ and Charles E. Harris^ A Cumulative Damage...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1984
ISBN-10: 0-8031-0218-6
ISBN: 978-0-8031-0218-7
... conditions are studied. Ultrasonic C-scans are also used for monitoring growth of disbonds in plate-type structures under cyclic transverse shear. Least square fits are attempted with the disbond growth rate data. composite materials fatigue (materials) laminated composites nondestructive evaluation...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1981
ISBN-10: 0-8031-0700-5
ISBN: 978-0-8031-0700-7
... Elastic buckling loads for laminated composite circular cylindrical shells subject to combined compression and torsion are determined experimentally. Test specimens include both boron/epoxy and graphite/epoxy laminates with symmetric layups of [∓45] s , [−45 2 /45 2 ] s , and [0/±45/90] s...