Simplified Method for Prediction of Transient Hygroscopic Stresses in Polymer Matrix Composites with Symmetric Environmental Conditions
Source abstract
Abstract
The purpose of this paper is to develop a direct and sufficiently exact method, which is much simpler than a numerical method, for computing of transient hygroscopic stresses in composite laminated plates. In references it has been shown that the calculation of moisture concentration inside laminated plates is necessary to compute the transient hygroscopic stresses and consequently we are bound to proceed calculating them each time in order to analyse these stresses. The developed method in this paper permits us to determine directly the values of such stresses without the calculation of the moisture concentration through laminated plates. In fact the series expressed by Equations (16) and (17) show that we are not in need of knowing the distribution of moisture concentration through laminates. Several examples are presented to demonstrate the assessment and performance in this method where we verified its accuracy by obtaining results for some laminates and comparing them with results from classical methods. Some stacking sequences exhibit important stresses within the plies which have to be taken into account in the design of composite structures submitted to a moist environment.
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Research context
OpenAlex topics: Composite Structure Analysis and Optimization · Mechanical Behavior of Composites · Aeroelasticity and Vibration Control
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References (13)
Show source-provided references
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