Modeling Damage, Fatigue and Failure of Composite Materials - 1st Edition - ISBN: 9781782422860, 9781782422983

Modeling Damage, Fatigue and Failure of Composite Materials

1st Edition

Editors: Ramesh Talreja Janis Varna
eBook ISBN: 9781782422983
Hardcover ISBN: 9781782422860
Imprint: Woodhead Publishing
Published Date: 20th October 2015
Page Count: 472
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Table of Contents

  • List of contributors
  • Preface
  • Part One. Damage development in composite materials
    • 1. Composite materials: constituents, architecture, and generic damage
      • 1.1. Introduction
      • 1.2. Composite constituents
      • 1.3. Fiber architecture and internal stresses
      • 1.4. Manufacturing defects
      • 1.5. Generic damage in composite materials
      • 1.6. Conclusions
    • 2. Fatigue damage mechanisms
      • 2.1. Introduction
      • 2.2. Axial tension fatigue of UD composites
      • 2.3. Fatigue of UD composites in other loading modes
      • 2.4. Conclusions
    • 3. Damage accumulation in textile composites
      • 3.1. Introduction
      • 3.2. Overview of damage development
      • 3.3. Initiation of matrix cracks
      • 3.4. Influence of the yarn crimp
      • 3.5. Influence of through-the-thickness reinforcement
      • 3.6. Crack saturation and development of delaminations
      • 3.7. Conclusions
    • 4. Damage accumulation under multiaxial fatigue loading
      • 4.1. Introduction: parameters influencing the fatigue behavior of composites
      • 4.2. Biaxial testing of composite laminates
      • 4.3. Experimental results for the main test methods
      • 4.4. Recent results from the University of Padova
      • 4.5. Comparison with results on flat laminates
      • 4.6. Conclusions
  • Part Two. Modeling of failure mechanisms in composite materials
    • 5. Matrix and fiber–matrix interface cracking in composite materials
      • 5.1. Introduction
      • 5.2. Failure mechanisms
      • 5.3. Modeling of failure initiation
      • 5.4. Conclusions
    • 6. Fiber–matrix debonding in composite materials: Transverse loading
      • 6.1. Introduction
      • 6.2. Micromechanical view: numerical model
      • 6.3. Failure initiation
      • 6.4. The interface crack
      • 6.5. Growth through the matrix
      • 6.6. Micromechanical stages of the mechanism of damage under tension
      • 6.7. Effect of a secondary transverse load
      • 6.8. Effect of thermal residual stresses
      • 6.9. Conclusions
    • 7. Fiber–matrix debonding in composite materials: Axial loading
      • 7.1. Introduction
      • 7.2. Single-fiber fragmentation test
      • 7.3. Numerical simulation of debond crack propagation using LEFM
      • 7.4. Numerical simulation of debond propagation using cohesive elements
      • 7.5. Discussion and concluding remarks
    • 8. Evolution of multiple matrix cracking
      • 8.1. Introduction
      • 8.2. Analytical models for evolution of multiple matrix cracking in cross ply laminates
      • 8.3. Damage evolution in multidirectional laminates
      • 8.4. Statistical aspects in multiple matrix cracking
      • 8.5. Current issues and future trends
    • 9. Fiber failure and debonding in composite materials
      • 9.1. Introduction
      • 9.2. Damage mechanisms in UD composites in quasi-static loading
      • 9.3. Failure mechanisms in tension–tension fatigue
      • 9.4. Fiber debonding in quasi-static loading
      • 9.5. Debond growth in cyclic loading
      • 9.6. Effect of specimen surface on debond growth
      • 9.7. Effect of neighboring fibers on debond growth
      • 9.8. Future work
    • 10. Compression failure of composite laminates
      • 10.1. Introduction
      • 10.2. Modeling
      • 10.3. Strength data and predictions
      • 10.4. Discussion and conclusions
    • 11. Delamination fractures in composite materials
      • 11.1. Introduction
      • 11.2. Fracture mechanics concepts
      • 11.3. LEFM approach to delamination
      • 11.4. Advanced fracture mechanics
      • 11.5. Delamination under cyclic loading
      • 11.6. Perspectives and trends
      • 11.7. Summary
  • Part Three. Modeling of damage and materials response in composite materials
    • 12. Thermoelastic constants of damaged laminates: COD- and CSD-based methods
      • 12.1. Introduction
      • 12.2. Stiffness of damaged laminates in terms of COD and CSD
      • 12.3. Average stress state between cracks and average COD and CSD
      • 12.4. Analytical models for stress state between cracks
      • 12.5. Experimental data and simulation examples
      • 12.6. Conclusions
    • 13. Microlevel approaches to modeling of damage in composite materials: Generalized plane strain analysis
      • 13.1. Introduction
      • 13.2. Fundamental equations and conditions
      • 13.3. Solution for undamaged laminates
      • 13.4. Shear lag theory for cross-ply laminates
      • 13.5. Generalized plane strain theory for cross-ply laminates
      • 13.6. Calculation of in-plane thermoelastic constants for damaged laminates
      • 13.7. Through-thickness properties of damaged laminates
      • 13.8. Consideration of ply-crack closure
      • 13.9. Results for general symmetric laminates
      • 13.10. Prediction examples for cross-ply laminates
    • 14. A multiscale approach to modeling of composite damage
      • 14.1. Introduction
      • 14.2. Basic concepts and considerations
      • 14.3. Failure mechanisms
      • 14.4. Multiscale analysis
      • 14.5. Application example for ply cracking in multidirectional laminates
      • 14.6. Recent developments
      • 14.7. Conclusions
  • Part Four. Failure analysis of composite materials and joints
    • 15. Multiscale failure assessment of composite laminates
      • 15.1. Introduction
      • 15.2. The laminate failure process
      • 15.3. Traditional approaches to composite failure
      • 15.4. Multiscale failure analysis for load-bearing capacity
      • 15.5. Conclusions
    • 16. Modeling the crack initiation in unidirectional laminates under multiaxial fatigue loading
      • 16.1. Introduction
      • 16.2. Peculiarities of fatigue failure
      • 16.3. Calculation of local stresses
      • 16.4. Validation
      • 16.5. Constant-life diagrams
      • 16.6. Conclusions
    • 17. Incorporating manufacturing defects in damage and failure analysis
      • 17.1. Introduction
      • 17.2. Real initial material state
      • 17.3. RIMS–performance relationships
      • 17.4. Comprehensive failure analysis with defects
      • 17.5. Conclusions
    • 18. Damage simulations in composite structures in the presence of stress gradients
      • 18.1. Introduction
      • 18.2. Global/local FE techniques
      • 18.3. Numerical techniques for interlaminar damage failure
      • 18.4. Applications
      • 18.5. Conclusions and future developments
    • 19. Failure models for composite joints: An approach based on singular stress states
      • 19.1. Motivation
      • 19.2. Stress characterization
      • 19.3. Generalized fracture toughness determination
      • 19.4. Failure envelope for failure initiation prediction
      • 19.5. Practical application for the design of adhesive joints
      • 19.6. Conclusions and future developments
  • Index

Description

Modelling Damage, Fatigue and Failure of Composite Materials provides the latest research on the field of composite materials, an area that has attracted a wealth of research, with significant interest in the areas of damage, fatigue, and failure.

The book is a comprehensive source of physics-based models for the analysis of progressive and critical failure phenomena in composite materials, and focuses on materials modeling, while also reviewing treatments to give the reader thorough direction for analyzing failure in composite structures.

Part one of the book reviews the damage development in composite materials such as generic damage and damage accumulation in textile composites and under multiaxial loading, while part two focuses on the modeling of failure mechanisms in composite materials with attention given to fibre/matrix cracking and debonding, compression failure, and delamination fracture. Final sections examine the modeling of damage and materials response in composite materials, including micro-level and multi-scale approaches, the failure analysis of composite materials and joints, and the applications of predictive failure models.

Key Features

  • Examines current research in modeling damage, fatigue, and failure of composite materials
  • Provides a comprehensive source of physics-based models for the analysis of progressive and critical failure phenomena in composite materials
  • Assesses the failure and life prediction in composite materials
  • Discusses the applications of predictive failure models such as computational approaches to failure analysis

Readership

industrial and academic researchers working in composite materials, and structural designers in aeronautical, automotive and energy applications


Details

No. of pages:
472
Language:
English
Copyright:
© Woodhead Publishing 2016
Published:
Imprint:
Woodhead Publishing
eBook ISBN:
9781782422983
Hardcover ISBN:
9781782422860

About the Editors

Ramesh Talreja Editor

Professor Ramesh Talreja is Tenneco Endowed Professor in the Department of Aerospace Engineering at Texas A&M University. He has published extensively in the field of damage mechanics and fatigue of composite materials.

Affiliations and Expertise

Tenneco Endowed Professor in the Department of Aerospace Engineering, Texas A&M University, College Station, TX, USA

Janis Varna Editor

Professor Janis Varna is a professor at the Department of Engineering Sciences and Mathematics, Luleå University of Technology, Sweden.He has over 25 years of research experience in damage, fatigue and failure of composite materials with particular emphasis on micro mechanics of fibre/matrix interaction in composites, damage evolution as well as on development of reliable test methodology for short fibre and fibre/matrix interface characterization.

Affiliations and Expertise

Professor, Department of Engineering Sciences and Mathematics, Luleå University of Technology, Luleå, Sweden