Advanced Technology for Design and Fabrication of Composite Materials and Structures

Contained in the volume are the papers presented at an International Symposium on Advanced Technology for Design and Fabrication of Composite Materials and Structures. The Symposium was organized by Consorzio per la Ricerca e l'Educazione Permanente; Institute of Fracture and Solid Mechanics, Lehigh University, Pennsylvania USA; Dipartimento di Ingegneria Strutturale del Politecnico di Torino; and Dipartimento di Ingegneria Aeronautica e Spaziale del Politecnico di Torino. It was held at the Politecnico di Torino in Italy, May 24-28, 1993. The support from the various organizations is acknowledged as follows: Consiglio N azionale delle Ricerche ALENIA SP AZIO AGUST A CIRA AERMACCHI Centro Ricerche FIAT ALENIA (formerly AERITALIA) Collegio Costruttori Edili della Provincia di Torino As new knowledge is being accumulated on the design and fabrication of advanced composite systems in different sectors of the world, there is the need not only to exchange new ideas but also to disseminate the information from the researchers to the users. The theme of this Symposium is particularly relevant to the automobile, marine, aerospace and construction industry where the competitive edge lies on improved processing and/or manufacturing of the products. Technological advances have been and will continue to depend strongly on the development of new materials and their effective use in design. Empirical trial-and error methods could no longer be considered economically feasible when applied to usage-specific materials such as composites.

Résumé
Starting with technologies concerned with assessing the change in material microstructure in terms of the processing parameters, this work offers methodologies to account for tradeoffs between the fundamental variables such as temperature and pressure that control the product quality.

Contenu
Session I: Curing, Bonding and Modelling.- Towards decision making in knowledge-based systems for composite cure.- Adhesive bonding in construction technology.- Nonlinear fracture mechanics models for fibre reinforced materials.- Session II: Composite Fabrication Technology.- Modelling three-dimensional composites.- Design-fabrication-performance relationship of advanced textile structural composites.- Modelling of filament winding technology.- Session III: Structural Behavior of Composites.- Material anisotropy and work strain characterized by stationary values of strain energy density function.- Constitutive laws for fibre reinforced ceramics.- On the fiber-governed bimodular constitutive models.- Genetic algorithms for the design of composite panels.- Session IV: Composite Beams and Plates.- On computational strategies for composite laminates.- Some aspects in the structural modelling of composite laminates.- Transverse cracking in laminated composites.- Some global aspects of fibre reinforcement efficiency in concrete.- Failure behavior and structural design of concrete members reinforced with continuous fiber reinforcing materials.- Session V: Interfaces and Fracture.- Interface structure analysis and fracture behaviour of inorganic composites.- Advanced fibre composites with engineered interfaces.- Interface property tailoring for pseudo strain-hardening cementitious composites.- Session VI: Damage and Fracture.- Experimental determination of the fractal dimension of disordered fracture surfaces.- Damage characterization, damage growth validation and repair consideration of advanced aircraft composite structures.- Near tip measurement of environmental effects on opening and growth of cracks in particulate composites.- Fracture mechanics parameters influencing themechanical properties of concrete composites.- Session VII: Thermoplastic Composites.- Fundamental aspects in manufacturing of thermoplastic composite materials.- Economic manufacturing techniques for continuous fibrereinforced thermoplastics in aircraft and automotive applications.- Forming techniques of advanced thermoplastic composite materials.- Session VIII: Joint, Airframe and Engine.- Bolted joint strength of graphite/epoxy laminates subjected to biaxial loading conditions.- A parametric study of structural adhesive joints for aerospace applications.- Impact damage and residual strength of forward fuselage composite panel.- Application of metal matrix composites for supersonic aeroplane engines.