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Damage modelling and finite element simulation of the fatigue behaviour of fibre-reinforced composites Record Control Number : 61183 Quality Validation Date : 2002-11-22 Update Date : 2002-11-26 Name : Ghent University Department : Mechanics of Materials and Structures Address : Sint-Pietersnieuwstraat 41 City : Gent PostCode : 9000 Region : VLAAMS GEWEST OOST-VLAANDEREN Gent (Arrondissement) Country : BELGIUM Type : Research, Education Number of Employees : > 500 Subject Index Codes : Materials Technology, Measurement Methods, Scientific Research Subject Details : Ghent University is located in Belgium and counts 24,000 students. Our research group Mechanics of Materials and Structures is part of the Faculty of Engineering of this university. The three key-tasks of the university are education, research, and services to the industry and society as a whole. Collaboration Title : Damage modelling and finite element simulation of the fatigue behaviour of fibre-reinforced composites Type Details : Our research group "Mechanics of Materials and Structures" investigates the fatigue behaviour of fibre-reinforced composites. Residual stiffness models, predicting damage and permanent strain, have been developed for the fatigue behaviour of glass/epoxy composites. The models have been implemented in a commercial finite element code and allow to simulate the fatigue life from initial loading up to final failure. Stress redistribution, stiffness degradation and (possible) accumulation of permanent strain can be predicted for each material point, independently of geometry and boundary conditions of the specimen. The experimental tests are designed to provide as much data as possible. To that purpose, optical fibre sensors and shadow moiré techniques are used, together with standard strain measurement techniques. By use of digital cameras, the initiation and growth of damage is followed. Displacement-controlled bending fatigue tests have been used because they represent a realistic fatigue loading condition, where neither stress nor strain are constant during fatigue life due to the stiffness deterioration of the composite specimen. In our laboratory, all facilities are present for manufacturing composite specimens (autoclave, resin transfer moulding) . Characterization (elastic properties, strength properties) is done by using servo-hydraulic testing machines and ultrasonic inspection. The main expertise of our laboratory is in the combined application of experimental testing and theoretical models. As such, all numerical predictions are validated against experimental observations. Programme : FRAMEWORK 6C, FP6-AERONAUTICS, FP6-ECOTECH, FP6-SME Research Interest : Space technology, Material technology, Mechanical engineering, hydraulics, vacuum technology, vibration & acoustic engineering, Composite materials Partners Aquired : None Validity Date : 2003-11-22 Target Partner Expertise : Partners are sought that have experience in either field of fatigue of fibre-reinforced composites, fatigue testing, damage modelling, finite element simulations. Country : Any Country Contact Person Name : VAN PAEPEGEM, Wim (Dr.ir.) Position : Postdoctoral Research Fellow Organisation : Ghent University Department : Mechanics of Materials and Structures Address : Sint-Pietersnieuwstraat 41 City : Gent Region : VLAAMS GEWEST OOST-VLAANDEREN Gent (Arrondissement) Country : BELGIUM PostCode : 9000 Telephone : +32-9-2644207 Fax : +32-9-2643587 Contact Org. URL : http://allserv.rug.ac.be/~wvpaepeg/fatigue/composites.html Electronic Mail : Wim.VanPaepegem@rug.ac.be -------------------------------------------------------------------
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