Optimal Design Of Fibre Reinforced
Tubular Structures
Author(s)
H. Martikka & E. Taitokari
Abstract
The main purpose of this study is to present results of the design and damage
analysis of industrial vessel shell microstructures made of fibre reinforced plastic
laminates and subject to mechanical and aggressive chemical loads due to
sulphuric and hydrochloric acids and high temperatures. Methods to obtain
optimal performance microstructure are use of balanced and symmetric laminate
layering with optimal fibre strengthening directions and volume fractions.
Optimal selection of chemically resistant fibres and matrix is essential for
endurance. Use of thick enough walls is cost-effective for vessel bottoms. Two
vessel winding manufacturing technologies are compared for optimal selection.
Keywords: composite materials and structures, optimal design, stress corrosion
cracking.
1 Introduction
Composites used for structural engineering are commonly formed from five
commonest material groups, metals, ceramics, glasses, elastomers and polymers.
Design rules and codes are based continuum models. Another trend is to use
more microscopic modelling. Useful information of composite design is
presented by Agarwal and Broutman [1] and Barbero [2]. Chemical resistances
are studied by Aveston and Sillwood [3] and, Kawada and Srivastava [4]. In
aggressive enough loadings all material alternatives and combinations suffer
accumulation of damage. Typical damage events are stress corrosion wearing of
outer surface, fracture of fibres and degradation of matrix. The main purpose of
this study is to present results of design and damage study analysis of industrial
vessel walls.
Keywords
composite materials and structures, optimal design, stress corrosion
cracking.
Related Book
Other papers in this volume
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