Gaussian function characterization of unnotched tension behavior in a carbon/epoxy composite containing localized fiber waviness
Source abstract
Abstract
Abstract This study presents the results of analytical and experimental efforts performed on the tension behavior of a common aerospace grade carbon fiber/epoxy material system containing out-of-plane fiber waviness. The composite material selected for this study is one designated by the Federal Aviation Administration’s Advanced General Aviation Transportation Experiments program for use in aerospace structural applications. Unidirectional and multidirectional laminates were examined with different thicknesses containing three levels of waviness. The waviness morphology considered in this study is a ‘degrading’ type waviness, where a relatively sharp wave occurs on the first ply and is completely diminished at the other laminate face. To determine analytically the tensile stiffness, a Gaussian function is introduced to characterize the waviness observed and is used in a transformation-based classical lamination theory approach. The tension failure behavior is also reported for the waviness specimens tested.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Mechanical Behavior of Composites · Textile materials and evaluations · Fiber-reinforced polymer composites
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (27)
Show source-provided references
1. Seattle Times. Boeing finds new problem in 787, installing Patch, <http://seattletimes.nwsource.com/html/localnews/2009664552_apusboeing7874thldwritethru.html; August 14, 2009 [accessed 22.01.10].
2. A study on the compressive strength of thick carbon fibre–epoxy laminates
3. Effect of fiber waviness on stiffness and strength reduction of unidirectional composites under compressive loading10.1016/0266-3538(96)00045-0 ↗
4. Nonlinear elastic behavior of unidirectional composites with fiber waviness under compressive loading10.1115/1.2805957 ↗
5. Effects of material and geometric nonlinearities on the tensile and compressive behavior of composite materials with fiber waviness10.1016/S0266-3538(00)00201-3 ↗
6. Elastic properties of composites with fiber waviness10.1016/1359-835X(96)00034-6 ↗
7. Jones · 1975
8. A technique for characterizing process-induced fiber waviness in unidirectional composite laminates using optical microscopy10.1177/002199839703101702 ↗
9. Investigation on the effect of part length on process-induced fiber wrinkled regions in composite laminates10.1177/002199839703101703 ↗
10. The effects of mandrel material and tow tension on defects and compressive strength of hoop-wound, online consolidated, composite rings10.1016/S1359-835X(02)00018-0 ↗
11. Fiber waviness and other mesostructures in filament wound materials10.1177/073168449701601803 ↗
12. Prediction of compressive strength of unidirectional polymer matrix composites10.1177/002199839803200504 ↗
13. Compressive strength of fiber reinforced composite materials
14. Mechanics of composite strengthening
15. Influence of ply waviness on the stiffness and strength reduction on composite laminates10.1177/089270579200500405 ↗
16. Effects of layer waviness on the compression fatigue performance of thermoplastic composite laminates10.1016/0142-1123(94)90450-2 ↗
17. Effective moduli and failure considerations for composites with periodic waviness10.1016/j.compstruct.2004.02.005 ↗
18. Variability, fibre waviness and misalignment in the determination of the properties of composite materials and structures10.1016/j.compositesa.2008.04.016 ↗
19. Fiber waviness generation and measurement and its effect on compressive strength10.1177/073168440001900201 ↗
20. The effects of marcel defects on composite structural properties
21. Sawicki AJ, Minguet PJ. The effect of intraply overlaps and gaps upon the compression strength of composite laminates. In: Collection of technical papers – AIAA/ASME/ASCE/SHS/ASC structures, structural dynamics & materials conference, vol. 1, April 20–23, 1998. p. 744–54.10.2514/6.1998-1786 ↗
22. Interlaminar strains and compressive strength reductions due to nested layer waviness in composite laminates10.1177/073168449801701102 ↗
23. A comprehensive explanation of compression strength differences between various CFRP materials: Micro-meso model, predictions, parameter studies10.1016/j.compositesa.2009.01.004 ↗
24. Tomblin J, Sherraden J, Seneviratne W, Raju KS, Advanced general aviation transport experiments. A – basis and B – basis design allowables for epoxy – based prepreg TORAY T700GC-12K-31E/#2510 unidirectional tape. Report number AGATE-WP3.3-033051-132, Kansas: National Institute for Aviation Research, Wichita State University Wichita; 2002.
25. Daniel · 2006
26. Concise property transformation relations for an anisotropic lamina10.1177/002199837100500214 ↗
27. ASTM D3039/D3039M. Standard test method for tensile properties of polymer matrix composite materials. West Conshohocken (PA): American Society of Testing and Materials; 2008.