UID:
almahu_9948211937602882
Format:
1 online resource (350 pages).
Edition:
First edition.
ISBN:
1-5231-2683-3
,
1-56990-693-9
Series Statement:
Progress in polymer processing (PPP) series
Content:
"Discontinuous long fiber reinforced polymer structures with local continuous fiber reinforcements represent an important class of lightweight materials with broad design possibilities and diverse technical applications, e.g. in vehicle construction. However, in contrast to continuous fiber reinforced composites, extensively used in the aircraft industry, there is still a lack of integrated and experimentally proven concepts for manufacture, modeling, and dimensioning of combinations of discontinuously and continuously reinforced polymer structures. This is partly ascribed to the complexity of the manufacturing processes of discontinuously reinforced polymers, with heterogeneous, anisotropic, and nonlinear material and structural properties, but also to the resulting bonding problem of both material types. This book addresses these issues, including both continuous and discontinuous fiber processing strategies. Specific design strategies for advanced composite reinforcement strategies are provided, with an integrated and holistic approach taken for composites material selection, product design, and mechanical properties. Characterization, simulation, technology, design, future research, and implementation directions are also included. Especially in the field of application of three-dimensional load-bearing structures, this book provides an excellent foundation for the enhancement of scientific methods and the education of engineers who need an interdisciplinary understanding of process and material techniques, as well as simulation and product development methods"--
Note:
Intro -- Foreword -- Acknowledgments -- Preface -- List of Contributors -- List of Symbols -- List of Acronyms -- Contents -- 1 Introduction to Continuous-Discontinuous Fiber-Reinforced Polymer Composites -- 1.1 Fiber-Reinforced Composite Materials -- 1.2 About IRTG GRK2078 -- 1.3 Compression Molding Process -- 1.4 Constituent Materials of CoDiCoFRTS -- 1.4.1 Thermoset Matrix Material -- 1.4.2 Fiber Reinforcements -- 1.5 Demonstrator Product -- 1.6 Organization of the Book -- 2 Manufacturing of CoDiCoFRP -- 2.1 Introduction -- 2.1.1 Challenges -- 2.1.2 Approach -- 2.2 Processing of CoDiCo Material -- David Bücheler -- 2.2.1 Introduction -- 2.2.2 Material and Process Development -- 2.2.3 Characterization and Modeling -- 2.2.4 Conclusions -- 2.3 Automated Integrated Handling and Preforming -- 2.3.1 Introduction -- 2.3.2 Grippers in Composite Production -- 2.3.3 Automated Placement of Grippers in Handling Systems -- 2.3.4 Prepreg-Specific Handling Tasks in Gripper Design -- 2.3.5 Demonstrator Units for Integrated Handling and Preforming -- 2.3.6 Conclusions -- 2.4 Quality Assurance of Continuous-Discontinuous Glass-Fiber SMC -- 2.4.1 Introduction -- 2.4.2 Defects in SMC and Unidirectional Prepregs -- 2.4.3 Classification of Defects -- 2.4.4 Measuring Methods and Testing Techniques -- 2.4.5 Multi-Sensor System -- 2.4.6 Data Fusion -- 2.4.7 Evaluation and Results -- 2.4.8 Effects of Defects -- 2.4.9 Conclusion -- 2.5 Machining of CoDiCoFRP -- 2.5.1 Introduction -- 2.5.2 Experimental Study of the Machining of CoDiCoFRP -- 2.5.3 Results and Discussion -- 2.5.4 Conclusions -- 2.6 Foaming of Microfibrillar Composites -- 2.6.1 Introduction -- 2.6.2 Fibril Formation during Blending -- 2.6.3 Uniaxial Extensional Flow Response of Fibrillar Blends -- 2.6.4 Linear Viscoelastic Shear Response of Fibrillar Blends.
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2.6.5 Effect of Fibers on the Crystallization of Polymers -- 2.6.6 Role of Crystallization in Foaming -- 2.6.7 Foaming of Fibrillated Blends -- 2.6.8 Conclusions -- 3 Characterization of CoDiCoFRP -- 3.1 Introduction -- 3.1.1 Challenges -- 3.1.2 Approaches -- 3.2 Interlaminar Fracture Analysis of Consolidated GF-PA6-Tapes -- 3.2.1 Introduction -- 3.2.2 Sample Manufacturing and Testing -- 3.2.3 Results of the Fracture Toughness Experiments -- 3.2.4 Analysis of the Microstructure and Crack-Initiating Factors -- 3.2.5 Assessment of the Physical Experiments by Numerical Simulations -- 3.2.6 Conclusions -- 3.3 Microstructure Characterization -- 3.3.1 Introduction -- 3.3.2 Statistics -- 3.3.3 Image Processing -- 3.3.4 Orientation Analysis -- 3.3.5 Fiber Volume Fraction -- 3.3.6 Fiber Tracking -- 3.3.7 Application -- 3.3.8 Summary -- 3.4 Mechanical Characterization of Hybrid Continuous-Discontinuous Glass/Carbon Fiber Sheet Molding Compound Composites -- 3.4.1 Introduction -- 3.4.2 Material Manufacturing -- 3.4.3 Methods -- 3.4.4 Results -- 3.4.5 Conclusion -- 4 Simulation of Sheet Molding Compound (SMC) and Long Fiber-Reinforced Thermoplastics (LFTP) -- 4.1 Introduction -- 4.1.1 Challenges -- 4.1.2 Approaches -- 4.2 Rheological Characterization and Process Simulation of SMC -- 4.2.1 Introduction -- 4.2.2 Rheological Measurements and Models -- 4.2.3 3D Process Simulation of SMC -- 4.2.4 Conclusion -- 4.3 Phase-Field Modeling of the Curing Process in Fiber-Reinforced Thermosets on a Microscale -- 4.3.1 Introduction -- 4.3.2 Microscale Simulation on the Basis of the Phase-Field Method -- 4.3.3 Modeling the Curing Process -- 4.3.4 Simulating the Curing Process -- 4.3.5 Conclusions -- 4.4 Multiscale Finite Element Simulation of Residual Stress in Laminates during Cure -- 4.4.1 Introduction -- 4.4.2 Thermo-Chemo-Mechanical Modeling of CoFRTS Laminates.
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4.4.3 Implementation in Finite Element Simulation -- 4.4.4 Validation of Evolution of Residual Stress in Laminates at the Macroscale -- 4.4.5 Microscale Simulation of Residual Stress in Laminates -- 4.4.6 Results and Discussion -- 4.4.7 Conclusions -- 4.5 Micromechanical Material Modeling and Experimental Characterization of DiCo SMC -- Loredana Kehrer, Jeffrey T. Wood, Thomas Böhlke -- 4.5.1 Introduction -- 4.5.2 Characterization of DiCo UPPH -- 4.5.3 Prediction of Thermo-Elastic Material Behavior -- 4.5.4 Comparison of Simulation Results and Experimental Data -- 4.5.5 Summary and Conclusions -- 4.6 Mean-Field Damage Modeling of DiCoFRTS -- 4.6.1 Introduction -- 4.6.2 Continuum Mechanical Model -- 4.6.3 Parameter Identification -- 4.6.4 Application -- 4.6.5 Conclusions -- 4.7 Material Modeling of Long Fiber-Reinforced Thermoplastic -- 4.7.1 Introduction -- 4.7.2 Material and Microstructure -- 4.7.3 Material Modeling -- 4.7.4 Parameter Identification and Model Verification -- 4.7.5 Quasi-Static Simulations -- 4.7.5.1 Simulations of Dynamic Tests -- 4.7.6 Conclusions -- 5 Designing CoDiCoFRP Structures -- 5.1 Introduction -- 5.1.1 Challenges -- 5.1.2 Approaches -- 5.2 Production-Oriented Dimensioning of Local Patches under Consideration of Distortion and Manufacturing Constraints -- 5.2.1 Introduction -- 5.2.2 Draping Simulation Method -- 5.2.3 Curing and Warpage Simulation Method -- 5.2.4 Multi-Objective Patch Optimization Algorithm with Embedded Draping and Curing Simulation -- 5.2.5 Application Example -- 5.2.6 Conclusion -- 5.3 A Process-Related Topology Optimization Method to Design DiCoFRP Structures -- 5.3.1 Introduction -- 5.3.2 State of Research -- 5.3.3 Influence of Material Orientations on Topology Optimization Results -- 5.3.4 Coupled Optimization Process -- 5.3.5 Application Example -- 5.3.6 Conclusion.
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5.4 CoDiCo-FiberFox - Decision-Support System in Early Phases of Product Development with Fiber-Reinforced Composites -- 5.4.1 Introduction -- 5.4.2 Design Guidelines for FRP -- 5.4.3 Demand for Topics and Content in Design Guidelines for FRP -- 5.4.4 Development of a Reference Design Guideline -- 5.4.5 CoDiCo-FiberFox - Decision-Support System -- 5.4.6 Conclusion -- 6 Compression Molding of the Demonstrator Structure -- 6.1 Introduction -- 6.2 Design and Manufacturing Technology of the Demonstrator -- 6.3 Compression Molding Simulation, Experimental Validation and Mapping -- 6.3.1 Flow Simulation -- 6.3.2 Mapping of Flow Simulation Results -- 6.3.3 Microstructure Characterization Using µCT Volume Images -- 6.3.4 Mapping of Orientation Tensor N -- 6.3.5 Comparison -- 6.4 Structural Simulation and Its Experimental Validation -- 6.4.1 Structural Simulation -- 6.4.2 Experimental Investigation -- 6.4.3 Comparison -- 6.5 Conclusions -- Index.
Additional Edition:
ISBN 1-56990-692-0
Language:
English
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