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254 7. 2 AEROSPACE 261 7. 3 MARINE 265 7. 4 GROUND TRANSPORTATION 268 7. 5 CNIL 270 References 285 Index Preface Most structures consist of an assembly of a number of individual components that must be connected to form an integral load transmission path. These connections are often referred to as joints and can be achieved in a variety of forms, e. g. by bolting, riveting, or other forms of mechanical fastening, or by welding or brazing for connecting metallic elements, or by adhesive bonding. No matter what forms of connections are used in the structure, these joints are potentially the weakest points in the structure and the locations where a weight penalty may apply. Thus structural joints must be designed adequately to meet the specific design requirements. Adhesive bonding represents one of the most important enabling technologies for developing innovative design concepts and structural configurations as well as exploiting new materials. The evolution of adhesive bonding technology, and its current knowledge base, was made possibly by the explosive growth in the adhesive applications in a great variety of industries over the past few decades. While it is easy for everyone to identify examples of adhesive bonding in the world around us, analysis and design of structural bonded joints represent one of the most challenging jobs in structural design and manufacturing. Compared to other joining methods, particularly mechanical fastening, adhesive bonding can offer substantial performance and economic advantages.
Contents
1 Introduction.- 1.1 Background.- 1.2 Joint Classifications.- 1.3 Adhesive Characterisation.- 1.4 Fatigue and Durability.- 2 Stress Analysis Techniques.- 2.1 Introduction.- 2.2 Adhesive Properties.- 2.3 Analytical Analysis.- 2.4 Finite Element Analysis.- 2.5 Correlation of Analytical, Fea and Test Results.- 3 Failure Criteria and Strength Prediction.- 3.1 Introduction.- 3.2 Strength of Materials Criteria.- 3.3 Fracture Mechanics Criteria.- 3.4 Applications of Strength of Materials Criteria.- 3.5 Applications of Fracture Mechanics Criteria.- 3.6 Fatigue Strength Prediction.- 4 Damage Tolerance.- 4.1 Introduction.- 4.2 Effect of Debond or Voids in Adhesive.- 4.3 Effect of Damage in Adherends.- 4.4 Modeling of Single Lap Joints.- 4.5 An Analytical Model.- 4.6 Summary.- 5 Optimum Design.- 5.1 Introduction.- 5.2 1-D Linear Optimum Analysis.- 5.3 Methods of Structural Optimization.- 5.4 Research on Shape Optimization of Bonded Joints.- 5.5 Application of Shape Basis Vector Technique.- 5.6 Application of the Eso Method.- 6 Effect of Transverse Stitching.- 6.1 Introduction.- 6.2 Manufactruing.- 6.3 Single-Lap Joints — Experimental Results.- 6.4 Strength Prediction.- 6.5 Numerical Modeling and Angled Stitching.- 7 Selected Applications.- 7.1 Introduction.- 7.2 Aerospace.- 7.3 Marine.- 7.4 Ground Transportation.- 7.5 Civil.- References.
