Damage in Composite Structures: Notch Sensitivity Notch Insensitivity Complete’ Notch Sensitivity Notch Sensitivity of Composite Materials Holes Stresses around Holes Using the Anisotropic Elasticity Solution to Predict Failure The Role of the Damage Zone Created Near a Hole Simplified Approaches to Predict Failure in Laminates with Holes: the Whitney-Nuismer Criteria Other Approaches to Predict Failure of a Laminate with a Hole Improved Whitney-Nuismer Approach Application: Finding the Stacking Sequence Which Results in Good OHT Performance Cracks Modelling a Crack in a Composite Laminate Finite-Width Effects Other Approaches for Analysis of Cracks in Composites Matrix Cracks Delaminations Relation to Inspection Methods and Criteria Modelling Different Structural Details in the Presence of Delaminations Buckling of a Through-Width Delaminating Layer Buckling of an Elliptical Delaminating Layer Application - Buckling of an Elliptical Delamination under Combined Loads Onset of Delamination at a Straight Free Edge of a Composite Laminate Delamination at a Flange-Stiffener Interface of a Composite Stiffened Panel Double Cantilever Beam and End Notch Flexure Specimen The Crack Closure Method Strength of Materials Versus Fracture Mechanics - Use of Cohesive Elements Use of Cohesive Elements Impact Sources of Impact and General Implications for Design Damage Resistance Versus Damage Tolerance Modelling Impact Damage as a Hole Modelling Impact Damage as a Delamination Impact Damage Modelled as a Region of Reduced Stiffness Application: Comparison of the Predictions of the Simpler Models with Test Results Modelling BVID as a Hole a Single Delamination as an Elliptical Inclusion of Reduced Stiffness Comparisons of Analytical Predictions to Test Results - Sandwich Laminates Improved Model for Impact Damage Analysed as a Region of Reduced Stiffness Type and Extent of Damage for Given Impact Energy Model for Predicting CAI Strength Fatigue Life of Composite Structures: Analytical Models Needed Characteristics for an Analytical Model Models for the Degradation of the Residual Strength Linear Model Nonlinear Model Model for the Cycles to Failure Extension to Spectrum Loading Residual Strength and Wear-Out Model Predictions Compared to Test Results Residual Strength Predictions Compared to Test Results Cycles to Failure Predictions Compared to Test Results (Constant Amplitude) Cycles to Failure Predictions Compared to Test Results (Spectrum Loading) A Proposal for the Complete Model: Accounting for Larger Scale Damage First Cycle, Tension Portion First Cycle, Compression Portion Subsequent Load Cycles Discussion Tension-Compression Fatigue of Unidirectional Composites Tension-Tension Fatigue of Cross-Ply Laminates.