Stress Concentrations in Laminated Composites

 
 
CRC Press Inc
  • 1. Auflage
  • |
  • erschienen am 10. Oktober 1994
 
  • Buch
  • |
  • Softcover
  • |
  • 482 Seiten
978-1-56676-077-5 (ISBN)
 
Normally the cause of failure, stress concentrations are introduced in laminated plates in the forms of circular holes, elliptical openings and straight cracks. These forms of cutouts have many practical applications, and are familiar to most engineers. This book studies all the subjects closely related to the problem of stress concentrations in laminated composites All the models are verified with many experimental results. This comprehensive study gives the readers an in-depth and thorough understanding of the problem of stress concentrations in composites.
  • Englisch
  • Bosa Roca
  • |
  • USA
Taylor & Francis Inc
  • Für höhere Schule und Studium
  • |
  • Für Beruf und Forschung
  • Höhe: 227 mm
  • |
  • Breite: 152 mm
  • |
  • Dicke: 31 mm
  • 780 gr
978-1-56676-077-5 (9781566760775)
1566760771 (1566760771)
weitere Ausgaben werden ermittelt
Each chapter ends with a Discussion and Conclusion section and a References section.

I. Background

1. Introduction to Composite Materials
Introduction - Classifications - Properties - Problems of Stress Concentration - Current Applications - Stress-Strain Relations - Laminated Plate Theory

2. Test Methods
Introduction - Tension Tests - Compression Tests - Shear Tests - Tests of Open Hole Specimens - Methods for Damage Detection

3. Failure Criteria
Introduction - Guidelines - Classical Failure Criteria - Discussions - New Failure Criteria - Failure Criteria in the Presence of Stress Gradient - Appendix: Transformation of Principal Stresses

II. Finite-Width Solutions

4. Finite-Width Correction Factor for Anisotropic Plate
Introduction - Fundamental Theory - Improved Theory - Experimental and Numerical Comparisons - Anisotropic Plate with an Elliptical Opening

5. Strain and Stress Concentrations
Introduction - Stresses and Displacement Fields - Definition of Stress and Strain Concentration Factors - Anisotropic Plate with Circular Hole - Correction Factor for Finite-Width - Experimental Procedure - Experimental Results - SCF( and SCF( for Damaged Laminates - Appendix: Parametric Studies

III. Laminate Failure Models (Analytical)

6. Approximate Stress Analyses and Stress Failure Models
Introduction - Stress Analysis - Numerical Examples and Comparisons - Stress Failure Models - Applications

7. Experiment and Modified Failure Models
Introduction - Experiment for Tensile Tests - Results for Data Reduction - Prediction for Modified Models - Results of the Modified Models

IV. Lamina Failure Models (Analytical)

8. Point Strength and Minimum Strength Models
Introduction - Stress Analysis - Strength Models - Crack Simulation - Experimental Observation - Predictions and Comparisons - Characteristic Length as a Function of Opening Construction

9. Lamina-Based Fiber Failure Criteria and Effective Stress Failure Models
Introduction - Fracture Models - Unnotched Ultimate Strength - Results for Laminates with an Elliptical Opening - Baseline Characteristic Length - Comparison of Compression with Tension - Fracture Toughness

10. Notched Strength of Thermoplastic Composites
Introduction - Strength Models - Finite-Width Correction Factor - Experimental Investigation - Comparison of Data - Results

11. Shear Loading of Composites Containing an Opening
Introduction - Stress Analysis - Minimum Strength Model - Examples of Stress Distribution - Experimental Program - Comparisons

12. Multiaxial Loading of Multidirectional Laminates
Introduction - Stress Distribution - Failure Criteria, Mechanisms and Models - Unnotched Ultimate Strength - Uniaxial Loading of Laminates with a Slanted Crack - Fracture Under Multiaxial Loading

13. Mixed-Mode Fracture of Unidirectional and Off-Axis Laminates
Tensile Loading - Introduction - Stress Analysis - Complex Roots - Failure Models - Finite-Width Correction Factors - Experiment and Results - Correlation of Theory with Experiment

14. Mixed-Mode Fracture of Unidirectional and Off-Axis Laminates
Compressive Loading - Introduction - Strength Analysis - Strength Models - Finite-Width Correction Factors - Experimental - Discussion and Conclusion

15. Correlation of Damage Mechanisms and Characteristic Lengths
Introduction - Theoretical Background - Experimental Procedures - Results and Discussion - Comparison of Ultimate Strength

Progressive Failure Models (Numerical)

16. A Progressive Failure Model for Laminates with Cutouts
Introduction - Finite Element Analysis - Damaged Lamina Formulation - Failure Criteria - Computation Procedures - Parametric Studies - Comparison with Experiment

17. Damage Accumulation, and Accumulation due to Compressive Loading
Introduction - Formulation of the Damage Problem - Finite Element Analysis - Damaged Lamina Formulation - Failure

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