Journal ArticleDOI
Forming of composite spars including interlayers of aligned, multiwall, carbon nanotubes: An experimental study
TLDR
Carbon nanotubes offer the potential for improved or changed matrix properties, thereby enabling the creation of novel, multifunctional composite materials as mentioned in this paper, by using highly-aligned, multi-wall, carb...Abstract:
Carbon nanotubes offer the potential for improved or changed matrix properties, thereby enabling the creation of novel, multifunctional composite materials. By using highly-aligned, multiwall, carb ...read more
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Stealth technology: Methods and composite materials—A review
Husnain Ahmad,Asra Tariq,Amir Shehzad,Muhammad S. Faheem,Muhammad Shafiq,Iqra Abdul Rashid,Ayesha Afzal,Adnan Munir,Muhammad T. Riaz,Hafiz T. Haider,Ali Afzal,Muhammad Bilal Qadir,Zubair Khaliq +12 more
Journal ArticleDOI
Stacking sequence selection for defect-free forming of uni-directional ply laminates
TL;DR: In this paper, a new compatibility index, based on comparison of minimum energy (resin dominated) modes of adjacent plies, is proposed to identify stacking sequences which minimise defect formation.
Journal ArticleDOI
Interface manipulation towards wrinkle-free forming of stacked UD prepreg layers
TL;DR: In this article, the authors experimentally study how forming behavior can be changed by local manipulation of prepreg interfacial characteristics and show that different methods for surface modification are ex cient.
Journal ArticleDOI
Fast forming of multistacked UD prepreg using a high‐pressure process
TL;DR: In this paper, the opportunities of fast forming of multistacked UD prepreg when using high pressure forming were examined in an experimental study, and the results showed that forming is often considered a bottleneck in ma...
Journal ArticleDOI
Development and verification of a finite element model for double diaphragm preforming of unidirectional carbon fiber prepreg
TL;DR: In this article, a finite element model for double diaphragm preforming of a unidirectional (UD) carbon fiber prepreg was developed, where a hyperelastic constitutive model considering the effect of temperature was used to describe the nonlinear large deformation behavior of the diaphrasm in the preforming process.
References
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Journal ArticleDOI
Interlaminar and intralaminar reinforcement of composite laminates with aligned carbon nanotubes
TL;DR: In this article, a three-dimensional reinforcement of woven advanced polymer-matrix composites using aligned carbon nanotubes (CNTs) is explored experimentally and theoretically.
Journal ArticleDOI
Evaluation of bias-extension and picture-frame test methods for the measurement of intraply shear properties of PP/glass commingled fabrics
TL;DR: In this article, a modified version of the picture-frame test is proposed to avoid fiber tensioning during testing and is considered more appropriate to capture the influence of the fabric architecture on the measured properties.
Journal ArticleDOI
39—The Fitting of Woven Cloth to Surfaces
C. Mack,H. M. Taylor +1 more
TL;DR: The possible configurations adopted by woven cloth when fitted to various surfaces are discussed in this article, where a general type of fitting (involving two parameters) to surfaces of revolution is given together with some photographic illustrations.
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Bias extension measurements on cross-plied unidirectional prepreg
TL;DR: In this article, the deformation characteristics of cross-plied unidirectional prepreg under bias extension were investigated and the results showed that the global behaviour of crossplied prepreg can be predicted with reasonable accuracy by the pin-jointed-net assumption developed for woven cloth, but that the detailed behaviour is very different from that of woven cloth.
Journal ArticleDOI
Correlation between interfacial molecular structure and mechanics in CNT/epoxy nano-composites
Noa Lachman,H. Daniel Wagner +1 more
TL;DR: In this paper, the effect of the molecular nature of the interface between an epoxy matrix and multi-walled carbon nanotubes (CNTs) on the mechanical properties of the resultant nano-composites, with emphasis on toughness, was studied.