Advances in Modeling and Design of Adhesively Bonded Systems

Preface xiii Acknowledgements xv 1 Stress and Strain Analysis of Symmetric Composite SingleLap Joints Under Combined Tension and In-Plane Shear Loading1 Jungmin Lee and Hyonny Kim 1.1 Introduction 2 1.2 Equations and Solution 3 1.3 Solution Verifi cation 13 1.4 Yield Criterion 18 1.5 Case Studies 19 1.6 Summary 21 References 22 2 Finite Element Modeling of Viscoelastic Behavior andInterface Damage in Adhesively Bonded Joints 23 Feifei Cheng, Ö. Özgü Özsoy and J.N.Reddy 2.1 Introduction 23 2.2 Finite Element Analysis of Viscoelastic Adhesively BondedJoints 27 2.3 Damage Analysis of Viscoelastic Adhesively Bonded Joints33 2.4 Summary and Conclusions 43 Acknowledgements 44 References 44 3 Modeling of Cylindrical Joints with a Functionally GradedAdhesive Interlayer 47 S. Kumar 3.1 Introduction 48 3.2 Axisymmetric Model 52 3.3 Constitutive Models of the Adherends and FMGB Adhesive62 3.4 Variational Approach 62 3.5 Solution Procedure 68 3.6 Results and discussion 69 3.7 Summary 80 References 86 4 A Simplifi ed Stress Analysis of Bonded Joints UsingMacro-Elements 93 E. Paroissien, F. Lachaud, and T. Jacobs 4.1 Introduction 94 4.2 Linear Elastic 1D-Bar and 1D-Beam Models 96 4.3 Assuming a Non-linear Adhesive Material 110 4.4 Validation 118 4.5 Comparison With Finite Element Predictions 125 4.6 Conclusion 136 Acknowledgment 136 References 145 5 Simulation of Bonded Joints Failure using ProgressiveMixed-Mode Damage Models 147 M.F.S.F. de Moura and J.A.G. Chousal 5.1 Introduction 148 5.2 Cohesive Damage Model 149 5.3 Measurement of Cohesive Parameters 153 5.4 Continuum Damage Models 161 5.5 Conclusion 168 References 170 6 Testing of Dual Adhesive Ceramic-Metal Joints for AerospaceApplications 171 E.A.S. Marques, Lucas F.M. da Silva and C. Sato 6.1 Introduction 172 6.2 Experimental Details 173 6.3 Results 181 6.4 Conclusions 188 Acknowledgments 190 References 190 7 Modelling of Composite Sandwich T-Joints Under Tension andBending 191 J.H. Tang, I. Sridhar, G.B. Chai and C.H. Ong 7.1 Introduction 192 7.2 Description of the Experiment 193 7.3 Description of the Finite Element Model 196 7.4 Description of the Peel Stress Model: Strength of MaterialsApproach 199 7.5 Results and Discussion 202 7.6 Concluding Remarks 211 Acknowledgement 212 References 217 8 Strength Prediction Methods for Adhesively Bonded LapJoints between Composite-Composite/Metal Adherends219 P.K. Sahoo, B. Dattaguru, C.M. Manjunatha and C.R.L.Murthy 8.1 Introduction 220 8.2 Strength Prediction Using Characteristic Distances inProblems with Singular Stresses 224 8.3 Strength Prediction in Aluminium-Aluminium Joints 225 8.4 Strength Prediction in CFRP-Aluminium and CFRP-CFRP Joints229 8.5 Results and Discussion 232 8.6 Conclusions 234 Acknowledgments 235 References 235 9 Interface Failure Detection in Adhesively Bonded CompositeJoints Using a Novel Vibration-Based Approach 237 Ramadan A. Esmaeel and Farid Taheri 9.1 Introduction 238 9.2 Conventionally Used Non-destructive Techniques (NDTs) forDamage Detection 238 9.3 Motivation and Methodology 240 9.4 Experimental Procedure 243 9.5 Experimental Results 248 9.6 Finite Element Modeling Investigation 250 9.7 Summary and Conclusions 258 Acknowledgments 260 References 260