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interlaminar fracture

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Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003466
EISBN: 978-1-62708-195-5
... that failed in compression. 1800× Fig. 1 River patterns on the surface of a mode I tensile failure in a carbon/epoxy (AS4/3501-6) composite laminate. Overall crack growth direction is from left to right. 1000× Fig. 2 Mode I tension interlaminar fractures that propagated at various angles...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003380
EISBN: 978-1-62708-195-5
... of these fracture modes. Fig. 1 Delamination sources at geometric and material discontinuities Fig. 2 Three basic modes of delamination fracture The interlaminar fracture toughness (IFT) is a measure of the ability of a material to resist delamination. For the most general cases, the strain...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003330
EISBN: 978-1-62708-176-4
... three distinct fracture modes, namely, crack opening mode, shearing mode, and tearing mode. It presents an overview of fatigue testing and fatigue damage mechanisms of composite materials and reviews the types of mechanical measurements that can be made during the course of testing to assess fatigue...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003462
EISBN: 978-1-62708-195-5
... failure mode, initiation site, crack growth direction, and all environmental influences on the failure. For now, it is sufficient to say that translaminar fractures can exhibit tensile, compressive, shear, flexural, or fatigue failure modes, while intra- and interlaminar fractures can exhibit both...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003382
EISBN: 978-1-62708-195-5
...., ASTM , 1990 , p 7 – 33 26. Martin R.H. , Incorporating Interlaminar Fracture Mechanics into Design , International Conf. Designing Cost-Effective Composites, ImechE Conf. Trans. , Professional Eng. Publishing , London , 15–16 Sept 1998 , p 83 – 92 27. Miner M.A...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003441
EISBN: 978-1-62708-195-5
... transition H 2 O/solvent resistance Glass transition, wetMoisture weight gainSolvent weight gain Resin toughness Interlaminar fracture toughness Uncured impregnated system Characterization HPLCInfrared spectroscopyDSC Processibility Resin contentFiber contentFlowGelRDS...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003374
EISBN: 978-1-62708-195-5
... with the AS-4C specimen. A comparison between the mode I and mode II interlaminar fracture toughness ( G Ic and G IIc ) for the three material systems is shown in Fig. 8 . The dominant micromechanical event responsible for the increased mode I fracture toughness of AS- 4C/epoxy compared...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000625
EISBN: 978-1-62708-181-8
... illustrate the ductile fracture, interlaminar failure, transgranular cleavage and fracture, tension-overload fracture, longitudinal and transverse cracking, fiber splitting, stress rupture, and low-cycle fatigue of these composites. ductile to brittle transition fractograph metal-matrix composites...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003439
EISBN: 978-1-62708-195-5
... broken out into a separate level. Key properties include fiber areal weight, matrix content, void content, cured ply thickness, lamina tensile strengths and moduli, lamina compression strengths and moduli, and lamina shear strengths and moduli. Interlaminar fracture toughness is often tested...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003443
EISBN: 978-1-62708-195-5
... Using a Sandwich Beam D 5528 Standard Test Methods for Mode I Interlaminar Fracture Toughness of Unidirectional Fiber-Reinforced Polymer-Matrix Composites D 6415 Standard Test Method for Measuring the Curved Beam Strength of a Fiber-Reinforced Polymer-Matrix Composite ISO standard (b...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003467
EISBN: 978-1-62708-195-5
... system. Differential scanning calorimetry did not reveal any exothermic reactions, indicating a full cure of the composite spar. Further fractographic examination of several interlaminar fracture surfaces revealed evidence of striations, which are indicative of fatigue ( Fig. 13 ). Most...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003444
EISBN: 978-1-62708-195-5
... to a Distributed Load Plate flexure D 6484 Open-Hole Compression Strength of Polymer Matrix Composites Open-hole compression strength Z 5370Z Compression After Impact Strength of Fiber-Resin Composites Compression after impact Z 7225Z Mixed Mode I-Mode II Interlaminar Fracture Toughness...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0009080
EISBN: 978-1-62708-177-1
.../3900-2 Toughened Epoxy Prepreg System: Toughening Concept and Mechanism , Proceedings of the American Society of Composites, Sixth Technical Conference , 1991 , p 43 15. Sela N. and Ishai O. , Interlaminar Fracture Toughness and Toughening of Laminates Composite Materials...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003378
EISBN: 978-1-62708-195-5
... Interlaminar Cracking, Free-Edge Delamination Interface Flaw Intra- and Interlaminar Cracking Fracture Interlaminar Stresses Initial Failure Laminate Stress Analysis Netting Analysis Stresses Due to Temperature and Moisture Strength and Failure Subsequent Failures Nonlinear...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003381
EISBN: 978-1-62708-195-5
... 15.03 , ASTM • Todo M. , Nakamura T. , and Takahashi K. , Effects of Moisture Absorption on the Dynamic Interlaminar Fracture Toughness of Carbon/Epoxy Composites , J. Compos. Mater. , Vol 34 ( No. 8 ), 2000 , p 630 – 648 • Tsotsis T.K. and Lee S.M. , Long...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003376
EISBN: 978-1-62708-195-5
... “Characterizing Strength from a Structural Design Perspective” concerns analyzing the strength of composites, critical to predicting failure of any laminate. Successful use of two-dimensional composites requires an understanding of interlaminar stresses, and fracture mechanics offers a promising method...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003365
EISBN: 978-1-62708-195-5
... Relationship of resin toughness to cost Resin type Interlaminar fracture toughness ( G Ic ) at 23 °C (73 °F) Approximate cost Toughness per unit cost (a) J/m 2 ft · lbf/ft 2 $/kg $/lb PETI-5 4800 330 230 500 2 Avimid-K3B 1400 100 45 100 31 Avimid-N 2500 170 180 400...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003416
EISBN: 978-1-62708-195-5
... the fracture toughness of a filament-wound composite has been to use thermoplastic resins, because they offer outstanding interlaminar fracture toughness ( G Ic ) and good compression strength after impact testing. The three different impregnation methods commonly used are preimpregnated roving (prepreg...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003386
EISBN: 978-1-62708-195-5
... of the delaminations are a function of the material properties of the laminate, interlaminar shear strength, stiffness, mode II toughness, local panel stiffness, and impact energy. See the article “Fracture Mechanics of Composite Delamination” in this Volume for more information on the modes of delamination...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002415
EISBN: 978-1-62708-193-1
... = 0.05. Frequency = 10 Hz. Fig. 18 Effect of fiber orientation on 3/2 ARALL-1 laminate (0.053 in.) fatigue crack growth. Source: Ref 27 Fig. 19 Fracture toughness of GLARE fiber-metal laminate Fig. 20 A comparison of residual strength as a function of K t for 2024-T3...