| Edition |
Second edition / edited by T.D. Papathanasiou and Andre Benard. |
| Description |
1 online resource (1 volume) : illustrations (black and white, and color) |
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text txt rdacontent |
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computer c rdamedia |
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online resource cr rdacarrier |
| Series |
Woodhead Publishing series in composites science and engineering |
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Woodhead Publishing series in composites science and engineering.
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| Summary |
The purpose of aligning short fibers in a fiber-reinforced material is to improve the mechanical properties of the resulting composite. Aligning the fibers, generally in a preferred direction, allows them to contribute as much as possible to reinforcing the material. The first edition of this book detailed, in a single volume, the science, processing, applications, characterization and properties of composite materials reinforced with short fibers that have been orientated in a preferred direction by flows arising during processing. The technology of fiber-reinforced composites is continually evolving and this new edition provides timely and much needed information about this important class of engineering materials. Each of the original chapters have been brought fully up-to-date and new developments such as: the advent of nano-composites and the issues relating to their alignment; the wider use of long-fiber composites and the appearance of models able to capture their orientation during flow; the wider use of flows in micro-channels in the context of composites fabrication; and the increase in computing power, which has made relevant simulations (especially coupling flow kinematics to fiber content and orientation) much easier to perform are all covered in detail. The book will be an essential up-to-date reference resource for materials scientists, students, and engineers who are working in the relevant areas of particulate composites, short fiber-reinforced composites or nanocomposites. |
| Note |
Print version record. |
| Contents |
Front Cover -- Flow-Induced Alignment in Composite Materials -- Copyright Page -- Contents -- List of contributors -- 1 Flow-induced alignment in composite materials: an update on current applications and future prospects -- 1.1 A brief survey of composites -- 1.1.1 Composite materials over the years -- 1.1.2 An overview of aligned-fiber composites -- 1.1.3 Benefits of aligned short-fiber reinforcements -- 1.1.4 Flow-induced fiber alignment -- 1.1.5 Applications of aligned-fiber composites -- 1.1.6 Types of reinforcements -- 1.1.7 Processing issues in aligned-fiber composites -- 1.2 Flow processes for producing aligned-fiber polymer-matrix composites -- 1.2.1 Processing of thermoplastic polymer composites -- 1.2.1.1 Injection molding of thermoplastics -- 1.2.1.2 Extrusion -- 1.2.1.3 Sheet forming -- 1.2.2 Thermosets -- 1.2.3 Aligned-fiber mats -- 1.2.4 Blends of liquid crystal polymers and thermoplastics -- 1.3 Flow processes for producing aligned-fiber metal-matrix composites -- 1.4 Flow processes for producing aligned-fiber ceramic-matrix composites -- 1.5 Future prospects -- References -- 2 Fiber-fiber and fiber-wall interactions during the flow of nondilute suspensions -- 2.1 Introduction -- 2.2 Single fiber motion -- 2.3 Orientation characterization -- 2.4 Fiber-fiber interactions -- 2.4.1 Early work -- 2.4.2 Diffusion models -- 2.4.3 Slender body theory-based solution -- 2.4.4 Stokesian dynamics -- 2.4.5 Computer simulations/full numerical solutions -- 2.5 Concentrated suspensions -- 2.6 Fiber-wall interactions -- 2.7 Summary and outlook -- References -- 3 Closure models for flow-induced alignment of particles of nearly arbitrary shapes -- 3.1 Introduction -- 3.2 Flow-induced alignment of spheroidal particles -- 3.2.1 The orientation distribution function and the method of moments. |
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3.2.2 Orientation distribution function for spheroidal particles -- 3.2.3 The moment equation for the orientation dyadic and the closure problem -- 3.2.4 The fully symmetric quadratic closure model -- 3.3 Orientation of ensembles of particles of arbitrary shape: Rallison's approach -- 3.3.1 Algebraic properties of the fourth moment for particles with arbitrary shape -- 3.3.2 The proposed closure model for ensembles of particles of nearly arbitrary shape -- 3.4 Summary and conclusion -- References -- 4 Macroscopic modeling of the evolution of fiber orientation during flow -- 4.1 Introduction -- 4.2 Experimental observations -- 4.3 Basic theoretical background -- 4.3.1 A statistical approach -- 4.3.2 Jeffery and Folgar-Tucker equations -- 4.3.3 Evolution equations for the orientation of a population of fibers -- 4.3.4 Closure approximations -- 4.3.4.1 Linear, quadratic, and hybrid closures -- 4.3.4.2 Eigenvalue-based optimal fitting closures -- 4.3.4.3 Invariant-based closures -- 4.3.4.4 Other approximation closures -- 4.3.5 Rheological constitutive equation -- 4.3.5.1 Slender ellipsoids -- 4.3.5.2 Slender-body theory -- 4.4 Recent improvement in fiber suspension modeling -- 4.4.1 Models for slow down fiber orientation kinetics -- 4.4.1.1 Reduced-strain closure model -- 4.4.1.2 Retarding principal rate model -- 4.4.2 Anisotropic rotary diffusion models -- 4.4.2.1 General framework -- 4.4.2.2 Model for the rotary diffusion tensor -- 4.4.3 Fiber suspension modeling in non-Newtonian fluids -- 4.4.4 Informed ISOtropic viscosity -- 4.4.4.1 Importance of coupled solutions -- 4.4.4.2 Informed ISOtropic viscosity framework -- 4.4.5 Semiflexible fiber suspension modeling -- 4.5 Some process models -- 4.5.1 Elements of fluid mechanics -- 4.5.2 Extrusion and fused deposition modeling -- 4.5.3 Injection molding -- 4.5.4 Compression molding. |
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4.6 Concluding remarks -- References -- 5 Flow-induced alignment in injection molding of fiber-reinforced polymer composites -- 5.1 Introduction -- 5.2 The injection molding process -- 5.2.1 Overview -- 5.2.2 Modeling of mold filling -- 5.2.3 Velocity profiles in mold filling -- 5.2.3.1 Gap-wise velocity profiles -- 5.2.3.2 Planar velocities -- 5.2.3.3 Fountain flow -- 5.3 Experimental observations of fiber orientation in injection molding -- 5.3.1 Filling patterns with fiber-reinforced melts -- 5.3.2 Skin-core structure -- 5.3.2.1 Influence of the injection gate -- 5.3.2.2 Effect of injection speed -- 5.3.2.3 Effect of wall solidification -- 5.3.2.4 Effect of cavity thickness -- 5.3.2.5 Effect of cavity wall temperature -- 5.3.2.6 Effect of melt rheology -- 5.3.3 Fiber orientation around weldlines -- 5.3.4 Other influences -- 5.3.4.1 Edge-effects -- 5.3.4.2 Fiber depletion and fiber segregation -- 5.3.4.3 Fiber orientation in the sprue -- 5.3.4.4 Effect of packing -- 5.3.4.5 Long fibers -- 5.3.4.6 Effect of fiber concentration -- 5.4 Prediction of fiber orientation in injection molding -- 5.4.1 Modeling strategies: prediction of fiber orientation -- 5.4.1.1 Jeffery's model for noninteracting fibers -- 5.4.1.2 Rotary diffusion models -- 5.4.1.3 Use of orientation tensors -- 5.4.2 Modeling strategies: effects of fibers on flow kinematics -- 5.4.3 Parametric sensitivity analysis -- 5.4.3.1 Effect of fountain flow on fiber orientation predictions -- 5.4.3.2 Effect of the interaction parameter on fiber orientation predictions -- 5.4.3.3 Choice of inlet orientation -- 5.4.3.4 Prediction of fiber orientation around weldlines -- 5.5 Conclusions -- References -- 6 Control and manipulation of fiber orientation in large-scale processing -- 6.1 Introduction -- 6.2 Application of SCORIM for weldline strength enhancement. |
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6.2.1 Copolyester liquid crystal polymer containing glass fibers -- 6.2.2 High temperature cure dough molding compound -- 6.3 Application of SCORIM for physical property enhancement -- 6.3.1 Glass fiber-reinforced polypropylene -- 6.3.2 Glass fiber filled copolyester -- 6.3.2.1 Fiber orientation in SCORIM plaques -- 6.3.2.2 Young's modulus measurements -- 6.3.2.3 Linear thermal expansion of moldings -- 6.4 Control of porosity in thick-section moldings -- 6.4.1 Control of porosity and fiber orientation in a variable cross-section bar -- 6.4.2 Molding and characterization of a thick-section molding representing an actuation support structure -- 6.4.2.1 Molding procedures -- 6.4.2.2 Characterization of moldings -- 6.5 Control of fiber orientation in a selection of mold geometries -- 6.5.1 Injection molded plaque -- 6.5.2 Injection molded fin -- 6.5.3 Multicavity SCORIM for the production of molded rings -- 6.6 Extensions of the shear controlled orientation concept -- Addendum: Control and manipulation of fiber orientation in large-scale processing -- References -- 7 Theory and simulation of flow-induced microstructures in liquid crystalline materials -- 7.1 Introduction -- 7.1.1 Liquid crystalline materials -- 7.1.2 Liquid crystal polymers -- 7.1.3 Main- and side-chain liquid crystalline polymers -- 7.1.4 Biological liquid crystalline materials -- 7.2 Flow modeling of liquid crystalline materials -- 7.2.1 Theory and simulation -- 7.3 Single component nematics -- 7.3.1 Leslie Ericksen nematodynamics -- 7.3.2 Quadrupolar order parameter -- 7.3.3 Nematodynamics -- 7.3.4 Landau de Gennes nematodynamics -- 7.4 Binary nematic mixtures -- 7.4.1 Leslie-Ericksen constitutive equation -- 7.4.1.1 Macroscopic dynamics of homogeneous binary nematic mixtures -- 7.4.1.2 Rate of entropy production for nematic mixtures. |
| Subject |
Composite materials.
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Composites.
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composite material.
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Composite materials
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| Added Author |
Papathanasiou, T. D., editor.
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Bénard, André, 1964- editor.
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| Other Form: |
Print version: Flow-induced alignment in composite materials. Second edition. Oxford : Woodhead Publishing, 2021 9780128185742 (OCoLC)1242735559 |
| ISBN |
9780128185742 |
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0128185740 |
| Standard No. |
AU@ 000070156342 |
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AU@ 000070171759 |
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