Properties and Testing of Fiber-Reinforced Polymers

Preface

PART I Accelerated Testing Methodology (ATM)

1 INTRODUCTION

2 VISCOELASTICITY
2.1 Introduction
2.2 Concept of Viscoelastic Behavior
2.3 Concept of Time-Temperature Superposition Principle
2.4 Master Curve of Creep Compliance of Matrix Resin
2.5 Generalization of TTSP for Nondestructive Deformation Properties to Static, Creep, and Fatigue Strengths of FRPs
2.6 Master Curve of Static Strength of FRP
2.7 Master Curve of Creep Strength of FRP
2.8 Master Curve of Fatigue Strength of FRP
2.9 Conclusion

3 MASTER CURVES OF VISCOELASTIC COEFFICIENTS OF MATRIX RESIN
3.1 Introduction
3.2 Master Curves of Creep Compliance Based on Modified TTSP
3.3 Simplified Determination of Long-Term Viscoelastic Behavior
3.4 Master Curve of Relaxation Modulus by DMA and Creep Tests
3.5 Conclusion

4 NONDESTRUCTIVE MECHANICAL PROPERTIES OF FRP
4.1 Introduction
4.2 Role of Mixture
4.3 Mechanical and Thermal Properties of Unidirectional CFRPs, Fibers and Matrix Resin
4.4 Master Curves of Creep Compliance of Matrix Resin
4.5 Conclusion

5 STATIC AND FATIGUE STRENGTHS OF FRP
5.1 Introduction
5.2 Experimental Procedures
5.3 Results and Discussion
5.4 Applicability of TTSP
5.5 Conclusion

6 APPLICATION 1 OF ATM: STATIC AND FATIGUE FLEXURAL STRENGTHS OF VARIOUS FRP LAMINATES UNDER WATER ABSORPTION CONDITION
6.1 Introduction
6.2 Specimen Preparation
6.3 Experimental Procedures
6.4 Creep Compliance
6.5 Flexural Static Strength
6.6 Flexural Fatigue Strength
6.7 Conclusion

7 APPLICATION 2 OF ATM: LIFE PREDICTION OF CFRP/METAL BOLTED JOINT
7.1 Introduction
7.2 Experimental Procedures
7.3 Results and Discussion
7.4 Conclusion

PART II Advanced Accelerated Testing Methodology (Advanced ATM)

8 INTRODUCTION

9 FORMULATION OF STATIC STRENGTH OF FRP
9.1 Introduction
9.2 Formulation of Static Strength
9.3 Application of Formulation
9.4 Results and Discussion
9.5 Conclusion

10 FORMULATION OF FATIGUE STRENGTH OF FRP
10.1 Introduction
10.2 Formulation
10.3 Application of Formulation
10.4 Conclusion

11 FORMULATION OF CREEP STRENGTH OF FRP
11.1 Introduction
11.2 Formulation
11.3 Application of Formulation
11.4 Conclusion

12 APPLICATION 1 OF ADVANCED ATM: STATIC STRENGTHS IN VARIOUS LOAD DIRECTIONS OF UNIDIRECTIONAL CFRP UNDER WATER ABSORPTION CONDITION
12.1 Introduction
12.2 Experimental Procedures
12.3 Viscoelastic Behavior of Matrix Resin
12.4 Master Curves of Static Strengths for Unidirectional CFRP Laminates
12.5 Relation between Static Strengths and Viscoelasticity of Matrix Resin
12.6 Conclusion

13 APPLICATION 2 OF ADVANCED ATM: LIFE PREDICTION OF CFRP STRUCTURES BASED ON MMF/ATM METHOD
13.1 Introduction
13.2 Procedure of MMF/ATM Method
13.3 Determination of MMF/ATM Critical Parameters
13.4 Life Determination of CFRP Structures Based on MMF/ATM Method
13.5 Experimental Confirmation for OHC Static and Fatigue Strengths of CFRP QILs
13.6 Conclusion

14. APPLICATION 3 OF ADVANCED ATM: EFFECT OF MOLDING CONDITION ON STATISTICAL STATIC
AND CREEP STRENGTHS OF CFRP STRAND
14.1 Introduction
14.2 Experiments
14.3 Creep Compliance of Matrix Resin and Static Strength of CFRP Strand
14.4. Master Curves of Statistical Static and Creep Strengths of CFRP Strands
14.5 Conclusion

15 APPLICATION 4 OF ADVANCED ATM: EFFECT OF CARBON FIBER ON STATISTICAL STATIC AND CREEP STRENGTHS OF CFRP STRAND
15.1 Introduction
15.2 Molding of CFRP Strands and Testing Methods
15.3 Results and Discussion
15.4 Conclusion

PART III Integrated Accelerated Testing Methodology (Integrated ATM)

16 INTRODUCTION

17 INTEGRATED ATM
17.1 Introduction
17.2 Formulation
17.3 Application of Integrated ATM
17.4 Statistical Long-Term Life Prediction of CFRP Strand
17.5 Conclusion

18 APPLICATION 1 OF INTEGRATED ATM: STATISTICAL CREEP AND FATIGUE LIVES OF UNIDIRECTIONAL CFRP LAMINATES UNDER BENDING LOAD
18.1 Introduction
18.2 Experiments
18.3 Results and Discussion
18.4 Conclusion

19 APPLICATION 2 OF INTEGRATED ATM: CARBON FIBER AND MATRIX RESIN MECHANICAL PROPERTIES CONTROLLING STATISTICAL TENSILE FATIGUE LIFE OF UNIDIRECTIONAL CFRP
19.1 Introduction
19.2 Formulations
19.3 Experiments
19.4 Results and Discussion
19.5 Conclusion


20 APPLICATION 3 OF INTEGRATED ATM: INFLUENCE OF MECHANICAL PROPERTIES OF CARBON FIBER ON STATISTICAL CREEP AND FATIGUE LIVES OF CFRTP STRANDS
20.1 Introduction
20.2 Experimental Procedure
20.3 Results and Discussion
20.4 Conclusion

21 APPLICATION 4 OF INTEGRATED ATM: STATISTICAL TENSILE AND FLEXURAL CREEP AND FATIGUE LIVES OF UNIDIRECTIONAL CFRP LAMINATES WITH POLYPROPYLENE AS MATRIX
21.1 Introduction
21.2 Experimental Procedure
21.3 Results and Discussion
21.4 Conclusion

22 APPLICATION 5 OF INTEGRATED ATM: PREDICTION OF CREEP FAILURE LIFE FOR UNIDIRECTIONAL CFRP WITH HEAT-RESISTANT EPOXY RESIN AS MATRIX EXPOSED TO HIGH TEMPERATURE UNDER TENSION LOAD
22.1 Introduction
22.2 Experiments
22.3 Results and Discussion
22.4 Conclusion

23 APPLICATION 6 OF INTEGRATED ATM: EFFECTS OF ANNEALING ON STATISTICAL CREEP LIFE FOR
CFRP STRANDS WITH THERMOPLASTIC EPOXY RESIN AS MATRIX
23.1 Introduction
23.2 Formulations
23.3 Experiment Procedures
23.4 Results and Discussion
23.5 Conclusion

APPENDIX

A EFFECT OF PHYSICAL AGING ON THE CREEP DEFORMATION OF AN EPOXY RESIN
A.1 Introduction
A.2 Creep Deformation for Aged Polymers
A.3 Experimental Procedure
A.4 Results and Discussion
A.5 Conclusion

B RELIABLE TEST METHOD FOR TENSILE STRENGTH IN LONGITUDINAL DIRECTION OF UNIDIRECTIONAL CFRP
B.1 Introduction
B.2 Evaluation of Tensile Strength Using Post Bonded CFRP Strand Specimen
B.3 Development of Co-Cured CFRP Strand Specimen
B.4 Conclusion

C SIZE DEPENDENCE ON TENSILE STRENGTH FOR CFRP STRAND
C.1 Introduction
C.2 Formulations
C.3 Experimental Procedures
C.4 Experimental Results
C.5 Evaluation of Size Effect
C.6 Conclusion

Index