Stability and Failure of High Performance Composite Structures

Contents
About the Editors
Functionally Graded Plates in Cylindrical Bending
1 Introduction
2 Theoretical Formulation
2.1 Exponentially Graded Material Properties
2.2 Governing Equations of Motion
3 Exact Solution
4 Numerical Results and Discussions
4.1 Natural Frequencies (Free Vibration)
4.2 Stress Analysis of FG Plates in Cylindrical Bending
5 Conclusions
References
Fibre Reinforced Polymer Stay-in-Place (SiP) Structural Formwork and its Bond with Concrete
1 Introduction
2 FRP-SiP Formwork
3 Types of SiP Formwork
4 Applications of FRP SiP
5 FRP-Concrete Bond Improvement
6 Materials
7 Testing
7.1 FRP Pull Test: Shear Test 1
7.2 Concrete Push Test: Shear Test 2
8 Comparison of Bond Treatments on FRP- Concrete Interface
9 Conclusions
References
Failure Modes of Load-Bearing Sandwich Panels in Shear
1 Introduction
1.1 Shear in Panels Under Flexure
1.2 Insulation Compressibility
2 CFP Grid and GFP Stud Shear Connectors in Panels Under Flexure
2.1 Test Methods
2.2 Flexural Tests on Grid and Stud Connected Panels
2.3 Concrete Web Connection
3 Thin Wythes with a GRP Grid as Connector in Direct Shear Tests
4 Steel Shear Plates as Connectors in Direct Shear Tests
4.1 Test Variability
4.2 Results for 2 mm Plate Thickness
4.3 Results for 3 mm Plate Thickness
4.4 Failure Modes
5 Conclusions
References
Strength of Thermoplastic Carbon Fibre-PEEK Composite Tubes Under Combined Compression-Torsion Loading
1 Introduction
2 Composites Under Biaxial Loading
3 Research Program and Preparation
3.1 Numerical Methodology
3.2 Fabrication of CF-PEEK Specimens
3.3 Experimental Program
4 Experimental and Numerical Validation
4.1 Deformation Characteristics
4.2 Localized Strain Comparison
4.3 Surface Strain Fields
5 Performance Prediction of CF-PEEK Tubes
5.1 Interaction Between Axial and Torsional Loads
5.2 Progressive Failure Envelopes Under Biaxial Loading
5.3 Scope for Future Work
6 Conclusions
References
Mechanistic Analysis of Cementitious Composite at Meso-Scale
1 Introduction
2 Meso-Scale Approaches for Modelling Concrete
2.1 Development of Aggregate Configurations at Meso-Scale Model
2.2 Mechanistic Aspects of Concrete Constituents and Analysis Framework at Meso-Scale
3 Numerical Results and Discussion
4 Summary and Future Directions
References
Enhancing Flexural Strength of Unreinforced Masonry Members Using Cementitious Matrix-Based Composites
1 Introduction
2 Flexural Behaviour of the Rb Slab Retrofitted with the Concrete Jacketing (Section Enlargement)
3 Flexural Behaviour of URM with Fabric-Reinforced Cementitious Matrix (FRCM)
4 Use of ECC to Improve the Flexural Performance of URM (State of the Art)
4.1 Micromechanical Modeling of ECC
4.2 Out of Plane Behavior of URM Retrofitted with ECC
4.3 Development of Low-cost ECC at IIT Kanpur
5 Summary and Conclusion
References
Stability of Plates and Shell Panels Under Non-uniform In-Plane Loadings
1 Introduction
2 Literature Review
2.1 Plates
2.2 Shell Panels
3 Mathematical Formulations
3.1 Kinematics
3.2 Governing Differential Equations
3.3 In-Plane Elasticity Problem
3.4 Solution Methodology
4 Results and Discussion
5 Conclusion
References
Stability Behavior of Laminated Composite Panels
1 Introduction
2 Stability of Uniformly Stressed Isotropic Plates
3 Laminated Composites and Stiffness Coefficients
4 Finite Element Modelling
5 Buckling of Laminated Composite Plates
6 Dynamic buckling of Laminated Composite Plates
7 Concluding Remarks
References
Dynamic Instability of Laminated Functionally Graded CNT Reinforced Composite Plates Subject to Various Types of Non-uniform Periodic In-plane Edge Load
1 Introduction
2 Mathematical Formulation
3 Results and Discussions
4 Conclusions
Appendix
References
Vibration Serviceability of Modular Tall Buildings
1 Introduction
2 Dynamics of Structures
3 Comfort Requirements per ISO 10137:2005
4 Finite Element Modeling and Dynamic Response Calculation Using Matlab
5 Sensitivity Analysis
6 Concluding Remarks
References
Velocity Tracking Control Algorithm for Semi Active and Hybrid Control of RC Building Frame
1 Introduction
2 Numerical Modelling
2.1 Integrated MR Damper-Structure System
2.2 Integrated MR Damper-TMD-Structure System
3 VTC Algorithm
3.1 Other Standard Algorithms Used for Comparing the Results of VTC
4 Numerical Study
4.1 Comparison of Control of Responses Obtained by the Full and Partial Observed States
4.2 Comparison Between Response Controls Achieved Through Different Algorithms
4.3 Comparison Between the Control Forces Achieved Through Different Algorithms
4.4 Evaluation of the Efficiency of the VTC Algorithm
4.5 Comparison of Control of Responses for Hybrid Control
5 Conclusions
References
A Study on Confinement and Ductility of Geopolymer Concrete Filled UPVC Pipes Subjected to Axial Compression
1 Introduction
2 Scope of Study
3 Objectives of the Study
4 Literature Review
5 Work Plan: Materials and Methodology
5.1 General
5.2 Procurement of Materials
5.3 Design Procedure
5.4 Preparation of Alkaline Solution
5.5 Making the Mix
5.6 Measurement of Slump
5.7 Placing the Concrete in the Mould
5.8 Casting of Geo-Polymer Concrete Filled UPVC Tubes
5.9 Filling UPVC with Concrete
6 Results and Discussion
6.1 Cube Results
6.2 Load Compression Curves
6.3 Energy-Compression Curves
6.4 Bilinear Analysis
6.5 Mode of Failure
7 Conclusions
References
Performance of FRP Bridge Deck Under Flexural Loading
1 Introduction
2 Numerical Modelling of Bridge Deck
3 Validation of the Numerical Model
4 Parametric Study
5 Influence of Different Shapes and Thickness of Stiffeners
6 Influence of Transverse and Shear Moduli
7 Conclusions
References
Dynamic Buckling Analysis of FGM Plate Using Finite Element Method
1 Introduction
2 Modeling of FGM Plate
3 FGM Plate Formulation
3.1 Displacement Field
3.2 Strain–Displacement Relationship
3.3 Constitutive Relations
3.4 Non-linear FEM Formulation for Dynamic Buckling Analysis
3.5 Computer Implementation
4 Dynamic Buckling Analysis of FGM Plate
5 Numerical Study
5.1 Convergence-Cum-Validation Studies
5.2 Parametric Study
6 Conclusions
References
Postbuckling Study of the Laminated Composite Stiffened Plates Subjected to Parabolic In-Plane Loading
1 Introduction
2 Theory and Formulation
3 Results and Discussions
3.1 Buckling of Plate Subjected to Uniformly Distributed Load and Parabolic In-Plane Load
3.2 Postbuckling of Laminated Composite Plate Subjected to Uniformly Distributed Biaxial Load
4 Present Study
4.1 Postbuckling of Isotropic Plate
4.2 Post Buckling of Composite Plate
5 Conclusions
References
Nonlinear Vibration of Functionally Graded Porous-Cellular Timoshenko Beam Subjected to In-Plane Periodic Loading
1 Introduction
2 Formulation
2.1 Assumptions and Limitations
2.2 Displacement and Strains
2.3 Equations of Motions
2.4 Boundary Condition and Displacement Fields
2.5 Solution Methodology
3 Results and Discussion
3.1 Validation Study
3.2 Effect of Porosity Coefficient and Porosity Distribution
3.3 Effect of Static and Dynamic Load
4 Conclusion
References
Active Strengthening Using Prestressed Carbon Fibre Reinforced Polymer in Concrete Structure
1 Introduction
1.1 What is Carbon Fibre Reinforced Polymer (CFRP)?
1.2 Polymer Matrix and Carbon Fibre
1.3 Carbon Fibre Reinforced Polymer (CFRP) Material
2 CFRP Products
2.1 CFRP Sheet
2.2 CFRP Laminates
2.3 CFRP Grooved Laminates
2.4 CFRP Bars
3 Technique of CFRP Strengthening
3.1 Nonprestressed CFRP
3.2 Prestressed CFRP
3.3 Advantages and Disadvantages of Prestressed CFRP
3.4 Comparison of Non-prestressed and Prestressed System
4 Flexural Strengthening with Prestressed CFRP
4.1 Method of Prestressing
4.2 Notable Research Experiment on Prestressed CFRP on Concrete Beams
4.3 Prestressing System with Mechanical Anchors
4.4 Flexural Strengthening of RC Beams with Prestressed CFRP
5 Strengthening of RC Columns with Prestressed CFRP
5.1 Axial Strengthening by Confinement
5.2 Confinement by FRP Wrapping
5.3 Active Prestressing in RCC Columns
6 Case Study
6.1 Rail Over Bridge (ROB) at Karal Junction of JNPT
6.2 Skew Box Bridge
6.3 Rehabilitation of Railway Bridge
6.4 Slab Strengthening at Residential Building
7 Future Scope
References
Methodology for Predicting the Structural Response of FRP-Concrete Composite Beams Using Abaqus/CAE Software Package
1 Introduction
2 Literature Review
3 Finite Element Modeling in Abaqus/CAE
4 System of Units and Coordinate System
5 Problem Description
6 Methodology
6.1 Stage-I: Preprocessing
6.2 Stage-II: Analysis
6.3 Stage-III: Postprocessing
7 Observation and Verification of Results
8 Summary and Conclusions
References
Buckling Analysis of Thick Plates Using 5th Order Shear Deformation Theory
1 Introduction
2 Mathematical Formulation
2.1 The Displacement Function of the Fifth Order Shear Deformation Theory
2.2 Governing Equations and Boundary Conditions
3 Illustrative Example
3.1 Navier’s Solution for Buckling of Plate
4 Numerical Results and Discussion
5 Conclusions
Appendix A
References
Mechanism for Predicting the Progressive Failure of Natural Fiber-Based Composites
1 Introduction
2 Numerical Approach
3 Methodology of Postbuckling Analysis
3.1 Eigenvalue Buckling Prediction
3.2 Postbuckling Analysis
4 Results & Discussion
4.1 Buckling Load
4.2 First Ply Failure Load
4.3 Load Versus Displacement
5 Methodology to Predict the Progressive Failure of Composite Plate
5.1 Failure Criteria
5.2 UMAT Implementation
6 Conclusions
References
The Influence of Cutout Location on the Postbuckling Response of Functionally Graded Hybrid Composite Plates
1 Introduction
2 Numerical Formulation
3 Results and Discussion
3.1 Critical Buckling Load of Angle-Ply Laminates
3.2 First Ply Failure Load of Angle-Ply Laminates
3.3 Critical Buckling Loads of Quasi-Isotropic Laminates
3.4 First Ply Failure Loads of Quasi-Isotropic Laminates
4 Conclusions
References