NON-LINEAR STRESS-STRAIN MODEL FOR COATED FABRICS
DOI:
https://doi.org/10.11113/mjce.v8.15568Abstract
Coated fabrics are used in a variety of types and strengths for prestressed membrane structures. To account properly for their behaviour more accurate numerical models than those in common use have to be developed. A program was writl.en to calculate the stresses in a uniform stress, triangular clement based on the model using Dynamic Relaxation Method. This model is applied to experimental results developed from a sample of coated fabrics and comparisons are made between experimental results and model predictions. The model is numerically simple and well suited to implementation in numerical schemes necessary for non-linear analysis of complete structures.References
[I]. Stubbs, N. & Fluss. H.: " A Non-Linear Anisotropic Constitutive Law for Fabrics", Long Span Roof Structures, Proceedings of Symposium, St. Louis, Missouri, Oct. 1981
. Thomas, S. & Stubbs, N.: An Inelastic Biaxial Constitutive Model for Fabric-Reinforced Composite", Journal of Coated Fabrics, Vol.l3, Jan. 1984
. Tan K. Y. & Barnes. M. R.: " Numerical Representation of Stress~strain Relation for Coated Fabrics", Proceeding of the International Structural Engineering Conference, Bristol, July 1984
J. Day, A. S.: "Dilating Clay Equations", Arup Journal, December 1972
. Day, A. S.: "An Introduction to Dyanamic Relaxation", The Engineer, Jan. 1965
.Barnes, M. R.: "Applications of Dynamic Relaxation to The Topological Design & Analysis of Cable, Membrane and Pneumatic Structures", 2nd. International Conference on Space Structures. Guildford, 1975.
Ya<;sin, M. S.: "Numerical MOdelling of the Stress-Strain Properties of Coated Fabrics", Project for M.Sc Degree in Civil Engineering Structures, City University, London, Oct. 1992
Day, A. S. : "Stress Strain Equations for Non-Linear Behaviour of Coated Woven Fabrics", Shell-Membranes and Space Frame, Proceeding lASS Symposium, Osaka. 1986