Structural Adhesive Joints in Engineering

ISBN-13: 9789401089777 / Angielski / Miękka / 2011 / 309 str.

R. D. Adams; R. D. Adams

Opis

The intention of this book is that it should contain everything an engineer needs to know to be able to design and produce adhesively bonded joints which are required to carry significant loads. The advan- tages and disadvantages of bonding are given, together with a sufficient understanding of the necessary mechanics and chemistry to enable the designer to make a sound engineering judgement in any particular case. The stresses in joints are discussed extensively so that the engineer can get sufficient philosophy or feel for them, or can delve more deeply into the mathematics to obtain quantitative solutions even with elasto- plastic behaviour. A critical description is given of standard methods of testing adhesives, both destructively and non-destructively. The essen- tial chemistry of adhesives and the importance of surface preparation are described and guidance is given for adhesive selection by me ans of check lists. For many applications, there will not be a unique adhesive which alone is suitable, and factors such as cost, convenience, produc- tion considerations or familiarity may be decisive. A list of applications is given as examples. The authors wish to increase the confidence of engineers using adhesive bonding in load-bearing applications by the information and experience presented. With increasing experience of adhesives en- gineering, design will become more elegant as weH as more fitted to its products.

Spis treści

1. Introduction.- Joint Configurations: Lap-shear Joints, Butt Joints, Fillets. Metals and Other Constructional Materials. The Decision to Use Adhesive Bonding. The Balance of Advantages and Disadvantages.- 2. The Nature And Magnitude of Stresses In Adhesive Joints.- Introduction: Reality, Methods of Mathematical Analysis. The Single Lap Joint: Linear Elastic Analysis, Volkersen’s Analysis, The Analysis of Goland and Reissner, Effect of Bending in a Double-lap Joint, Volkersen’s Second Theory, Later Work. The Single-lap Joint — End Effects: Reduction of Stress Concentrations. The Single-lap Joint — Elasto-plastic Analysis. The Effect of Adherend Shape — Scarfed, Bevelled and Stepped Adherends. Composite Materials. Tubular Joints. Butt Joints. The Use of Joints in Design: Lap Joints, Tubular Joints, T-joints, Corner Joints, Butt Joints, Stiffeners, Doublers, Assembly.- 3. Standard Mechanical Test Procedures.- Destructive Testing: Tests with Thin Sheet Adherends, Tests for Properties of Adhesives. Nondestructive Testing: Nature of Defects, Tests Carried Out Before Bonding, Post-bonding and In-service Testing.- 4. The General Properties of Polymeric Adhesives.- Polymer Structures: Unsaturation. Mixed Adhesives. Properties and Temperature: The Glass Transition Temperature, Decomposition Temperature, Melting Temperature, The Deformation of Adhesive Polymers by Stress, Viscoelasticity, The Modulus of an Adhesive, Poisson’s Ratio, Strength Properties of Adhesive Polymers, Yielding Stresses of Polymers, Failure Modes After Yielding, Creep, Failure without Yielding — Brittle Fracture, Crazing, Coefficient of Thermal Expansion, Resistance to Deterioration.- 5. Factors Influencing The Choice of Adhesive.- Interaction with Substrate. Structural Adhesives for Metals: Check-list for Structural Metal Adhesives Used at Temperatures up to 70°C, The Advantage of Supported Filmic Adhesives (Tapes’), Unsupported Films, Liquids and Pastes, Influence of Metal of Adherend, High Temperature Metal-Metal Adhesion. Structural Adhesives for Wood: Check-list for the Use of Structural Wood Adhesives. Structural Adhesives for Mixed Constructions: Metal-Wood Structures, Metal-reinforced Plastics Structures. Choice of Adhesives for Semi-structural Use: Checklist for Adhesives for Semi-structural Use.- 6. Surface Preparation.- Metals. Wood. Concrete. Glass or Carbon-fibre Reinforced Plastics. Shot, Sand or Grit Blasting. Solvent Degreasing or Wiping. Chemical Etching: Aluminium, Ferrous Metals, Titanium, Other Metals. Priming Layers: Primers as Coupling Agents.- 7. Service Life.- The Creep of Adhesive Joints. Time-to-failure (Under Static Loading). Cycles-to-failure: Influence of Temperature, Influence of Test Frequency, Influence of Amplitude, Influence of Moisture. Effects of Temperature Change on Joint Strength. Service Life as Indicated by Climatic Exposure Trials.- 8. Applications.- Aircraft, Anchorages. Bridges. Carriages. Cars. Decking. Furniture. Glass Reinforced Plastics. Helicopters. Helicopter Blades. Hovercraft. Lamp Posts. Magnets. PABST. Rollers. Segmental Construction. Ski Constructions. Telephone Kiosks. Yachts.- References.- Appendix: Standard American and UK Specifications for.- Adhesion Tests.- Author Index.

O autorze

Robert David Adams, born 1940 is Emeritus Professor of Applied Mechanics, Department of Mechanical Engineering at University of Bristol. 1967 Professor Adams became Lecturer, Reader 1975, Professor 1986. From 1994 to 1998 he headed the Department. 1998 he became Graduate Dean of the Faculty of Engineering, University of Bristol and kept this position until 2004.
He is active member in the Institution of Mechanical Engineers, Institute of Materials
Institute of Physics, British Standards Institute and the Engineering Science Data Unit.

Professor Adams is Joint Editor-in-Chief of the "International Journal of Adhesion and Adhesives" and member of the Editorial board of: Journal of Adhesion, Nondestructive Testing and Evaluation International, Series A : Japan Society of Mechanical Engineers International Journal. Journal of Materials: Design & Applications, Proc. IMechE Part L.

Degrees and awards:
State Scholarship, 1958 Clothworkers' Scholarship (awarded to the student who stands highest in the Imperial College Entrance Scholarship Examination), 1959
BSc (Eng), First Class Honours, Imperial College, University of London, 1962
PhD, University of Cambridge, St John's College, 1967
DSc (Eng), University of London, 1986
Visiting Foreign Francqui Chair and Medal at the Free University of Brussels (VUB), 1991
Honorary Professorship of the Huazhong (Wuhan) University of Science & Technology (PRC), 1995.