Shape-Memory Polymers for Aerospace Applications

Preface

Chapter 1. Controlled Activation Schemes of SMPs for Aerospace Applications
Harper Meng and Guoqiang Li
1.1. Introduction
1.2. Aerospace Applications and Controlled Activation
1.3. Stepwise SME with Well-Separated Thermal Transitions
1.4. Stepwise SME with a Broad Switching Transition
1.5. Spatially Controlled SME
1.6. Two-Way Shape Changing Effect
1.7. Future Research Trends
1.8. References

Chapter 2. Environmental Durability of Shape Memory Polymers and Composites
Y. C. Lu, G. P. Tandon and Jeffery W. Baur
2.1. Introduction
2.2. Experimental
2.3. Results and Discussion
2.4. Conclusions
2.5. References

Chapter 3. Compression Behavior of Adaptive Polymer Foams
Matthew Di Prima and Ken Gall
3.1. Introduction
3.2. Compressive Characterization
3.3. Factors Affecting Compressive Performance
3.4. Compressive Modeling
3.5. Practical Applications
3.6. Conclusion
3.7. References

Chapter 4. Microvascular Activation of Shape Memory Polymers
David M. Phillips and Jeffery W. Baur
4.1. Introduction
4.2. Vasculature in Composites
4.3. Thermal Modeling
4.4. Case Studies
4.5. Conclusions
4.6. References

Chapter 5. Light Activated Shape Memory Polymers: Characterization of Elastic Modulus Evolution
Richard Beblo and Lisa Weiland
5.1. Introduction
5.2. Experimental Characterization
5.3. Experimental Results
5.4. Chemical Kinetic Model
5.5. Model Development
5.6. Model Results and Predictions
5.7. Conclusions
5.8. References

Chapter 6. Non-equilibrium Thermodynamics and Electromagnetics of Azobenzene Liquid Crystal Polymer Networks
William S. Oates and Jonghoon Bin
6.1. Introduction
6.2. Governing Equations
6.3. Thermodynamic Balance Relations
6.4. Free Energy Relations
6.5. Numerical Analysis
6.6. Discussion
6.7. Concluding Remarks
6.8. Acknowledgements
6.9. Appendix
6.10. References

Chapter 7. Viscoelasticity Based Models for Thermally Activated Systems
Kai Yu and H. Jerry Qi
7.1. Introduction
7.2. Glass Transition and Shape Memory Mechanism for Amorphous Polymers
7.3. Constitutive Models for SMPs Based on Glass Transition
7.4. Modeling of Solvent-induced Shape-Memory Behavior
7.5. Future Work
7.6. References

Chapter 8. Internal Variable Based Phase-Transition Models for Thermally-Actuated Shape Memory Polymers
Brent L. Volk, Duncan J. Maitland and Dimitris C. Lagoudas
8.1. Introduction
8.2. Basic Assumptions
8.3. Choice of Internal Variables
8.4. Kinematic Assumptions
8.5. Constitutive Equations
8.6. Three-dimensional Numerical Implementation
8.7. Calibration of Model Parameters
8.8. Comparison to Uniaxial Experiments
8.9. Three-dimensional Boundary Value Problems
8.10. Summary
8.11. Acknowledgements
8.12. References

Chapter 9. Hybrid Shape Memory Polymers-Shape Memory Alloys Composites
Pedro Cortes
9.1. Introduction
9.2. Shape Memory Composites
9.3. Modeling
9.4. Microvascular SMCs
9.5. Conclusions
9.6. Acknowledgments
9.7. References

Chapter 10. Multiway Bending Actuation of Shape-Memory Composite Belt
Hisaaki Tobushi, Ryosuke Matsui, Kohei Takeda and Shunichi Hayashi
10.1. Introduction
10.2. Fabrication of SMC Belt for Three-way Motion
10.3. Three-way Bending Movement of SMC Belt
10.4. Recovery Force of SMC Belt during Heating and Cooling
10.5. Development of Multifunctional SMC Actuator
10.6. Conclusions
10.7. References

Chapter 11. Fiber Reinforced Shape Memory Polymer Composite Deployable Hinge for Aerospace Applications
Liwu Liu, Haiyang Du, Yanju Liu and Jinsong Leng
11.1. Introduction
11.2. Post Buckling Behavior of SMPC
11.3. Design of SMPC Deployable Hinge
11.4. Manufacture of SMPC Deployable Hinges
11.5. Performance Test of SMPC Deployable Hinge
11.6. Summary
11.7. References

Chapter 12. Processing and Characterization of Novel Bismaleimide-Based Shape Memory Polymer Resin and Composites
G. P. Tandon, T. Gibson, R. Coomer, A.J.W. McClung and J. Baur
12.1. Introduction
12.2. Synthesis, Processing, Fabrication, Physical and Thermal Characterization
12.3. Thermo-mechanical and Shape Memory Characterization
12.4. Summary
12.5. Acknowledgements
12.6. References

Chapter 13. Nanoreinforced SMP Composites for Aerospace Applications
Haibao Lu, Yanju Liu and Jinsong Leng
13.1. SMPCs Reinforced by the Carbon-based Nanofiller
13.2. SMPCs Reinforced by the Nanosized Clay
13.3. SMPCs Reinforced by the Polyhedral Oligomeric Silsesquioxane (POSS)
13.4. SMPCs Reinforced by the Hybrid Filler
13.5. SMPCs for Aerospace Applications
13.6. Summary
13.7. References

Chapter 14. Adaptive Materials and Structures for Morphing Aerostructures
Shiv Joshi, Brian Sanders and Robert S. Bortolin
14.1. Introduction to Morphing Aerodynamic Structures
14.2. Morphing Mechanisms and Deformable Skin Requirements
14.3. A Multifunctional Reinforcement Concept
14.4. A Design Case Study
14.5. Conclusions
14.6. Acknowledgements
14.7. References

Chapter 15. Novel Design Concepts for Micro Air Vehicles and Unimorph Composite Actuators Incorporating Transverse Curvature
Jason T. Cantrell and Peter G. Ifju
15.1. Introduction
15.2. Unimorph Composite Actuator Experimental Procedure
15.3. Unimorph Composite Actuator Results
15.4. Micro Air Vehicle Wing Experimental Investigation
15.5. Micro Air Vehicle Wing Results
15.6. Conclusions
15.7. References

Chapter 16. Shape Memory Polymer Triggered Compliant Mechanisms for Deployable Systems
James J. Joo, Richard V. Beblo and Gregory W. Reich
16.1. Introduction
16.2. Energy subsystem Design and Analysis
16.3. Wing Deployment Mechanism Subsystem Design and Analysis
16.4. System Design
16.5. Conclusions
16.6. References

Chapter 17. Shape Memory Metal Rubber for Aerospace Applications
William Harrison, Richard Claus and Jennifer Lalli
17.1. Introduction
17.2. Experimentation
17.3. Results
17.4. Conclusions
17.5. Acknowledgements
17.6. References

Chapter 18. Active Origami
Martin L. Dunn and H. Jerry Qi
18.1. Introduction
18.2. Origami: A Combination of Art and Mathematics
18.3. Shape Memory Polymers for Active Origami
18.4. Discussions and Future Work
18.5. References

Index