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Failure of Fibre-Reinforced Polymer Composites

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The proposed book focusses on the theme of failure of polymer composites, focusing on vital aspects of enhancing failure resistance, constituents and repair including associated complexities. It discusses characterization and experimentation of the composites under loading with respect to the specific environment and applications. Further, it includes topics as green composites, advanced materials and composite joint failure, buckling failure, and fiber-metal composite failure. It explains preparation, applications of composites for weight sensitive applications, leading to potential applications and formulations, fabrication of polymer products based on bio-resources.

Provides exhaustive understanding of failure and fatigue of polymer composites

Covers the failure of fiber reinforced polymer composites, composite joint failure, fiber-metal composite, and laminate failure

Discusses how to enhance the resistance against failure of the polymer composites

Provides input to industry related and academic orientated research problems

Represents an organized perspective and analysis of materials processing, material design, and their failure under loading

This book is aimed at researchers, graduate students in composites, fiber reinforcement, failure mechanism, materials science, and mechanical engineering.

Author(s): Mohamed Thariq Hameed Sultan, M. Rajesh, K Jayakrishna
Publisher: CRC Press
Year: 2021

Language: English
Pages: 187
City: Boca Raton

Cover
Half Title
Title Page
Copyright Page
Table of Contents
List of Illustration
Preface
Editor Biographies
Contributors
Chapter 1: Natural Fibre-Reinforced Polymer Composites: Newer Materials for Weight-Sensitive Applications
1.1 Introduction
1.2 Natural Fibres and Their Origin
1.3 The Structure of Natural Fibres
1.4 Properties of Natural Fibres
1.5 Use of Natural Fibres in Composites
1.6 Natural Fibre Composites for Packaging Materials
1.7 Short Areca and Maize Fibre-Reinforced Composites
1.8 Conclusion
References
Chapter 2: Ageing and Its Influence on Mechanical Properties of Banana/Sisal Hybrid Composites: An Experimental and Analytical Approach
2.1 Introduction
2.2 Materials and Methods
2.3 Testing Standards
2.4 Water Absorption Behaviour
2.5 Reinforcement Models
2.5.1 Parallel and Series Model
2.5.2 Hirsch’s Model
2.6 Results and Discussion
2.6.1 Fundamental Water Absorption Mechanism
2.6.2 Tensile Properties of Composites
2.6.3 Flexural Properties of Composites
2.6.4 Impact Properties of Composites
2.7 Conclusions
References
Chapter 3: Interfacial Adhesion Improvement of Polymer Composites Using Graphene Fillers
3.1 Introduction
3.2 Graphene: Applicability Spectrum
3.2.1 Graphene: Improved Mechanical Strength
3.2.2 Graphene: Improved Thermal Stability
3.2.3 Graphene: Next-Gen Materials
3.2.4 Graphene: Improved Fracture Strength
3.3 Challenges
3.4 Conclusions
References
Chapter 4: Failure Models of Composite Structures under Impact Loading
4.1 Introduction
4.2 Damages in Composite Material
4.3 Classification of Impacts
4.3.1 High-Velocity Impacts
4.3.2 Low-Velocity Impacts
4.4 Prediction of Impact Effects on Composite Materials
4.4.1 Prediction of Impact Effects
4.4.2 Impact Responses
4.5 Modes of Failure
4.5.1 Matrix Damage
4.5.2 Delamination
4.5.3 Fibre Failure
4.5.4 Penetration
4.6 Conclusion
References
Chapter 5: Challenges of Adhesively Bonded Joints and Their Advantages over Mechanical Fastening
5.1 Introduction
5.2 Significance of Multi Material Joints
5.3 Mechanical Joining Methods
5.3.1 Nuts and Bolts
5.3.2 Screws
5.3.3 Rivets
5.3.4 Moulded-In Threads
5.4 Adhesive Bonded Joints
5.4.1 Adhesive
5.4.2 Adhesion
5.4.3 Adherend
5.4.4 Adhesive Types
5.4.5 Advantages of Adhesive Joining
5.4.6 Adhesive Disadvantages
5.5 Types of Adhesive Bonded Joints
5.5.1 Co-Curing
5.5.2 Co-Bonding
5.5.3 Secondary Bonding
5.6 Bonded Joint Design and Importance of Process Parameters
5.7 Surface Treatment
5.7.1 Basic Surface Treatments
5.7.2 Fundamental Surface Treatment
5.7.3 Special Surface Treatment
5.7.4 Quality Assessment of Surface Preparation using Water Break Test
5.7.5 Adherend Geometry
5.7.6 Adhesive Thickness
5.7.7 Overlap Length
5.7.8 Fabrication of Adhesively Bonded Joints
5.7.9 The Steps Involved in Bonded Joint Fabrication ( Jensen et al. 2016 ; Ebnesajjad 2009):
5.8 Mechanical Characterization of Bonded Joints
5.8.1 Lap Shear Tests
5.8.2 The Essential Factors to Be Considered in the Lap Joint Efficiency Test ( Budhea et al. 2017 ; Broughton 2012):
5.8.3 Fatigue Tests
5.8.4 Creep Tests
5.8.5 Post-Failure Analysis
5.8.6 Differential Scanning Calorimetry (DSC)
5.8.7 Dynamic Mechanical Thermal Analysis (DMTA)
5.8.8 Computational Simulation Studies Related to Adhesives
5.8.9 Non-Destructive Test and Evaluation (NDT&E)
5.9 Environmental Durability of Adhesively Bonded Joints
5.9.1 Effect of Temperature
5.9.2 Effect of Hydrothermal Ageing
5.9.3 Effect of Hygrothermal Ageing
5.10 Novelty and Advancements in Polymeric Materials
5.10.1 Nanoreinforced Adhesive
5.10.2 Interpenetrating Polymeric Network (IPN)
5.10.3 Adhesive Tapes
5.11 Complex Geometries Where Adhesive Can Be Applicable Compared to Traditional Joints
5.12 Advantages of Adhesively Bonded Structural Joints over Mechanical Fastening
5.13 Conclusion
Acknowledgements
References
Chapter 6: Damage Identification of Natural Fibre Composites Using Modal Parameters
6.1 Introduction
6.2 Materials and Methods
6.2.1 Hemp Fibre ( Cannabis sativa)
6.2.2 Specimen Preparation
6.2.3 Low-velocity Impact (LVI)
6.2.4 Modal Analysis
6.2.5 Modal Assurance Criterion
6.3 Results and Discussion
6.3.1 Modal Parameter Identification
6.3.2 Modal Assurance Criterion
6.4 Conclusion
Funding
Acknowledgements
References
Chapter 7: An Overview of Adhesive Bonded Composite Joint Failure: Critical Comparison of Co-Curing, Co-Bonding and Secondary Bonding
7.1 Introduction
7.2 Adhesive Bonded Joints in Composite Materials
7.3 Adhesive Bonding of Composites
7.4 Variables Influencing the Reinforced Joints
7.4.1 Effect of Surface Preparation in Reinforced Joints
7.4.2 Effect of Potential Failure Initiation Modes
7.4.3 Joint Configuration Effects
7.5 Displaying Methods of Composites Failure
7.5.1 Failure Criterion Method
7.5.2 Continuum Damage Mechanics Method
7.5.3 Plasticity Method
7.5.4 Delamination Modelling
7.6 Environmental Parameters Influencing Efficiency of Bonded Joints
7.6.1 Moisture in Pre-Bond
7.6.2 Moisture in Post-Bond
7.6.3 Temperature
7.6.4 Combined Effect of Temperature and Moisture
7.7 Conclusions
References
Chapter 8: Vibro-Acoustic Behaviour of a Damaged Honeycomb Core
8.1 Some Studies on Damaged Honeycomb Cores
8.2 A Vibro-acoustic Method for Damaged Cores
8.3 Results for Core’s Vibro-acoustic Responses
8.3.1 Experimental Work on Damaged Cores
8.3.2 Numerical Simulation for Damaged Cores
8.4 A Brief Conclusion for the Damaged Cores
8.5 Conclusion
References
Chapter 9: Synthesis of Green Hybrid Composite Films for Packaging Applications: Comparative Study with Conventional Materials
9.1 Introduction
9.2 Material and Methods
9.2.1 Materials
9.2.2 Pretreatment of NBH
9.2.3 Preparation of Films
9.3 Measurements
9.3.1 Scanning Electron Microscopy
9.3.2 Water Absorption
9.3.3 Mechanical Properties
9.3.4 Light Transmittance
9.3.5 Natural Soil Burial
9.4 Results
9.4.1 Mechanical Properties
9.4.2 Water Uptake
9.4.3 Optical Properties
9.4.4 Soil Burial Test
9.4.5 SEM
9.4.6 Comparative Study of Hybrid Films
9.5 Conclusion
References
Chapter 10: Damage to Polymer Matrix in Transport Applications
10.1 Introduction
10.2 Use of Polymer Composite Materials in Transportation Applications
10.3 Damage in Polymer Matrix Composites
10.4 Damage Mechanisms in PMCs
10.4.1 Interfacial Debonding
10.4.2 Matrix Micro Cracking/Intra-laminar Cracking
10.4.3 Interfacial Sliding
10.4.4 Delamination/Interlaminar Cracking
10.4.5 Manufacturing Defects
10.4.6 Conclusion
10.5 Failure Mechanisms of Polymer Matrix Composites in Transport Applications
10.5.1 Aerospace Applications
10.5.2 Marine Applications
10.5.3 Automotive Applications
10.6 Conclusion
References
Chapter 11: A Review of Natural Fibre Composites for Orthopaedic Plate Applications
11.1 Introduction
11.2 Fibre-Reinforced Polymer Composites
11.3 Natural Fibre Polymer Composites
11.4 Hybrid Composites
11.5 Summary
References
Chapter 12: Failure of Polymer Matrix in Space Applications
12.1 Introduction
12.2 Mechanical Failures
12.2.1 Natural-Fibre PMC
12.2.2 Glass-Fibre/Carbon-Fibre PMC
12.3 Wear Failure
12.4 Summary
References
Index