Mechanics of Sandwich Structures : Proceedings of the EUROMECH 360 Colloquium Held in Saint-Étienne, France, 13–15 May 1997

The main advantages of sandwiches as structural components are now well­ known and well-established. Due to the progress in polymer science and engineering and advances in manufacturing processes, sandwich structures can blend various functional and structural properties and therefore lead to highly innovating systems. The current difficulty to overcome is to provide designers with proper methodologies and tools that could enable them to design improved sandwich structures. Such dedicated design tools should be efficient, reliable, flexible and user-friendly. They should be based on advanced knowledge of sandwich behaviour at global and local scales. Such approach relies on our capability to test, identify, control and model structure performances. The impressive variety of core and face materials and the rapid developments in forming processes give new opportunities to design components which have more complex shapes and higher integrated functional and structural properties. Interest in sandwiches is permanently growing in industry and refined testing and modelling approaches should be encouraged to set up relevant guidelines to design reliable advanced structures. The European Society for Mechanics sponsored the EUROMECH 360 Colloquium on the 'Mechanics of Sandwich Structures' in Saint-Etienne, France, on 13 - 15 May 1997. The main purpose of EUROMECH 360 was to go into the most recent progresses in sandwich analysis and design, including mechanical modelling and testing. It was expected that the Colloquium should contribute to define new research directions to support development of advanced applications in strategic industrial sectors such as ground transportations or building and civil engineering. Front Matter....Pages i-xx Classification of Structural Sandwich Panel Behaviour....Pages 1-12 The Development of Sandwich Structures for Naval Vessels During 25 Years....Pages 13-28 Damage Tolerance of Aeronautical Sandwich Structures....Pages 29-36 Modeling of the Crash Behaviour of Edge Loaded Sandwich Structures with Fibre Reinforced Polymer Faces....Pages 37-44 A Comparative Analysis of Some Theories and Finite Elements for Sandwich Plates and Shells....Pages 45-52 Static Analysis of Sandwich Plates by Finite Elements....Pages 53-60 A Refined Multilayered Fem Model Applied to Sandwich Structures....Pages 61-69 A Refined Shear-Deformation Sandwich Finite Element....Pages 71-78 Comparison of Three Shear-Deformation Theories in the Non-Linear Analysis of Sandwich Shell Elements....Pages 79-88 On Shear and Bending-Membrane Coupling in Sandwich Shells with Elastic or Viscoelastic Core....Pages 89-96 Bending, Buckling and Free Vibration of Sandwich Composite Beams with a Transverse Shear Stress Continuity Model....Pages 97-104 Stress Distribution in a 4-Point or 3-Point Bending Probe....Pages 105-112 Saint-Venant’s Principle for Sandwich Structures....Pages 113-122 Membrane Analogy for Sandwich Panels in Thermally or Piezoelectrically Induced Bending....Pages 123-130 Homogenization of Periodic Sandwiches....Pages 131-138 Characterization and Simulation of the Mechanical Behaviour of Multilayered Components Composing a Fibrous Cylinder Head Gasket....Pages 139-146 Prediction of Elastic Properties of Sandwich Panels Using a Homogenization Computational Model....Pages 147-154 Effects of Boundary Conditions in High-Order Buckling of Sandwich Panels with Transversely Flexible Core....Pages 155-162 A Study on the Influence of Local Buckling on the Strength of Structural Core Sandwich Structures....Pages 163-173 Boundary Effects and Local Stability of Sandwich Panels....Pages 175-182 Overall Behaviour of Laterally Loaded Shallow Sandwich Panels....Pages 183-190 Geometric Non-Linear Analysis of Sandwich Structures....Pages 191-198 Plastic Interface Stability in Bimetallic Layers Subjected to Biaxial Loading....Pages 199-206 Dynamic Behaviour of Sandwich Structures Used in Air Transport....Pages 207-214 Identification of the Dynamic Material Properties of Composite Sandwich Panels with a Mixed Numerical Experimental Technique....Pages 215-222 New Elastodynamic Solutions to Forced Vibration Problems of Layered Rectangular Viscoelastic Plates....Pages 223-230 Theory for Small Mass Impact on Sandwich Panels....Pages 231-238 Effect of Ballistic Impact on the Compression Behaviour of Carbon/Glass Hybrid Composite Sandwich Panels for Military Bridging Structures....Pages 239-246 Penetrating Impact Strength of Sandwich Panels — Meaningful Test Method and Simplified Prediction....Pages 247-254 Contribution of the Response Surface Methodology to the Study of Low Velocity Impact on Sandwich Structures....Pages 255-262 Energy Absorption Characteristics of a Foam-Cored Sandwich Panel with Fibre-Reinforced Plastic Inserts....Pages 263-270 Theoretical and Experimental Analysis of Dissymmetrical Sandwich Plates with Compressible Core....Pages 271-279 Viscoelastic Properties of Steel/Polymer/Steel Sandwich Structures....Pages 281-286 Bending Fatigue Behaviour of PUR-Epoxy and Phenolic 3D Woven Sandwich Composites....Pages 287-294 Characterization of the Mechanical Behavior of Wood Laminates with the Help of a Flexion-Compression Device....Pages 295-302 Applying the Grid Method to the Measurement of Displacement and Strain Fields Through the Thickness of a Sandwich Beam....Pages 303-310 Moisture Detection in Sandwich Plates Using Infrared Thermography under Microwave Excitation....Pages 311-317 Modelling of the Core Properties of Sandwich-Fabric Panels with the Help of Finite Elements....Pages 319-326 Determination of Material Properties for Structural Sandwich Calculations: From Creep to Impact Loading....Pages 327-336 Mechanical Modelling and Characterisation of a New Structural Filler Made of Small Spheres Assembly....Pages 337-344 Experimental Determination of the Dynamic Properties of a Soft Viscoelastic Material....Pages 345-352 Recent Developments in 3D-Knittings for Sandwich Panels....Pages 353-360 A New Sandwich Panel (Skin in Glass-Carbon Hybrid Fabric / Core in Carbon Mat) : Manufacturing and Mechanical Characteristics....Pages 361-368 Sandwich Panels for High Speed Airport Shuttle....Pages 369-377 Finite Element Aided Design Software for Laminated and Sandwich Plates....Pages 379-386 Genetic Algorithm and Performance Indices Applied to Optimal Design of Sandwich Structures....Pages 387-395 Construction Methods for Big and Heavy Loaded Fibre Reinforced Composite Sandwich Structures Demonstrated on a Ses Hull....Pages 397-406 Sandwich Plates with “Through-the-Thickness” and “Fully Potted” Inserts....Pages 407-414 Failure Modes in Sandwich T-Joints....Pages 415-422 Back Matter....Pages 423-430

This text represents the Proceedings of the EUROMECH 360 Colloquium held in Saint-Étienne, France, 13-15 May, 1997. The main purpose of this meeting was to explore the most recent progress in sandwich analysis and design, including mechanical modelling and testing.
The main advantages of sandwiches as structural components are now well-known and well-established. Due to progress in polymer science and engineering and advances in manufacturing processes, sandwich structures can blend various functional and structural properties and therefore lead to highly innovative systems. The current difficulty to overcome is to provide designers with proper methodologies and tools that enable them to design improved sandwich structures.
The main themes covered by the Colloquium are: Modelling of sandwich structure behaviour; Dynamic properties of sandwich structures; Identification of sandwich and core material mechanical properties; Industrial applications and manufacturing. A few papers tackled more specific topics such as sandwich joining and manufacturing, or local and global sandwich panel stability.
This book will be of interest to engineering and scientists in industry, as well as to professors and students in universities, in order to keep abreast of developments in this rapidly growing field.