Composite Structures 2

The papers contained herein were presented at the Second International Conference on Composite Structures (ICCS/2) held at Paisley College of Technology, Paisley, Scotland, in September 1983. The Conference was organised and sponsored by Paisley College of Technology in association with the Scottish Development Agency and the National Engineering Laboratory. It forms a natural progression from the highly successful First International Conference on Composite Structures (lCCS/l) held at Paisley in September 1981. The last few decades have seen phenomenal advances in research and of composite materials with new and exciting structural development possibilities being unearthed on an almost daily basis. Composites have been rightly heralded as space-age materials of the future. However, along with the rather specialised aerospace applications a growing awareness of the wider potential of composites is also unmistakable. The extensive composite materials research programmes of the fifties and sixties are now yielding fruit in abundance, with composites being used in virtually every area of structural engineering from transportation to pressure vessels and so on. Although significant weight savings, paramount in transportation engineering, are possible, composites have gone far beyond being simply lighter than conventional materials. They offer real structural advantages with almost unbounded potential. The ability to tailor a particular matrix material to suit prevailing environmental conditions whilst maintaining adequate reinforcement to withstand applied loading is unquestionably an attractive proposition.

Session I: Plenary.- 1. The Monitoring of Damage in Carbon Fibre Composite Structures by Acoustic Emission.- 2. Biaxial Failure of GRP—Mechanisms, Modes and Theories.- Session II: Structural Monitoring.- 3. Damage Detection in Carbon Fibre Epoxy Structures Using Acoustic Emission.- 4. Characterization of Composite Materials by Means of the Ultrasonic Stress Wave Factor.- 5. Acoustic Emission (AE) as a Tool for Use on Composite Structures.- Session III: Structural Analysis: Platework Structures.- 6. Axisymmetric Elastic Large Deflection Behaviour of Stiffened Composite Plates.- 7. Vibration of Web-Stiffened Foam Sandwich Panel Structures.- 8. Global Transverse Shear in Laminated Composite Plates.- Session IV: Vibration Studies.- 9. Vibration and Elastic Stability of Polar Orthotropic Variable Thickness Circular Plates Subjected to Hydrostatic Peripheral Loading.- 10. A New Approach to the Nonlinear Dynamic Analysis of Composite Plates.- 11. A Combined Experimental and Numerical Technique for the Determination of the Material Properties of Laminates.- Session V: Finite Element Studies.- 12. Torsion of a Composite Beam.- 13. Elasto-Plastic Analysis of Fibrous Composite Shells Using ‘Semiloof’ Finite Elements.- 14. Failure Mechanisms and Strength Reduction in Composite Laminates with Cut-outs—A 3-D Finite Element Numerical Autopsy.- Session VI: Structural Analysis: Structural Systems.- 15. Structural Applications for Pultruded Profiles.- 16 Large GRP Butterfly Valves.- 17: Thermal Control of Tubular Composite Structures in Space Environment.- Session VII: Research and Development.- 18. Simultaneous Elastic and Photoelastic Calibration of Birefringent Orthotropic Model Materials.- 19. The Effect of Moisture Absorption on Composite Laminates.- 20. The Nonlinear Viscoelastic Response of Resin Matrix Composites.- Session VIII: Design.- 21. Rotational Strength and Optimal Design of a Hybrid Filament-Wound Disc.- 22. Simplified Design Procedures for Composite Plates under Flexural Loading.- 23. Design Principles for Plastic Structures.- Session IX: Experimental Investigations.- 24. An Evaluation of the Impact Properties of Carbon Fibre Reinforced Composites with Various Matrix Materials.- 25 Thermal Cycling and Vacuum Baking Effects on the Thermal Expansion of Graphite Fiber Reinforced Composite Laminates.- 26. Testing Organic Composite Insulators for Fusion Magnets.- 27. A Comparison of Plain and Double Waisted Coupons for Static and Fatigue Tensile Testing of Unidirectional GRP and CFRP.- Session X: Transportation Engineering.- 28. Sandwich Structures for Light Turrets.- Session XI: Structural Analysis: Buckling Studies.- 29. A Study of the Buckling of Some Rectangular CFRP Plates.- 30. Postbuckling Behaviour of Cylindrically Curved Panels of Generally Layered Composite Materials with Small Imperfections of Geometry.- 31. The Instability of Composite Channel Sections.- Session XII: Failure Analysis.- 32. Analysis of a Hybrid Unidirectional Buffer Strip Laminate.- 33. Basic Failure Mechanisms of Laminated Composites and Related Aircraft Design Implications.- Session XIII: Fracture Mechanics.- 34. The J-Integral as a Fracture Criterion for Composite Materials.- 35. Fracture of a Bimaterial Plate with a Crack Along the Interface.- 36. The Effects of Laminate Thickness on the Fracture Behavior of Composite Laminates.- Session XIV: Feasibility Studies including Natural Fibre Composites.- 37. The Suitability of Fibre—Cement Composites for Reinforcing Adobe Structures in Earthquake Zones.- 38. Performance of Banana Fabric—Polyester Resin Composites.- 39. Comparative Study on the Incorporation of Composite Material for Tyre Computation.