Open AccessPrediction of three-dimensional elastic behavior of filament-wound composites based on the bridging model
Author(s) -
Dongmei Yin,
B. M. Li,
Hongcheng Xiao
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1507/6/062008
Subject(s) - filament winding , protein filament , materials science , composite material , bridging (networking) , homogenization (climate) , stiffness , representative elementary volume , structural engineering , computer science , microstructure , engineering , biodiversity , computer network , ecology , biology
With the high specific stiffness, specific strength and designable ability, filament-wound composites have been widely applied in many industries, such as aerospace, energy and transportation, and they are also the one of more ideal choices for the lightweight structural design of weapon system. However, their complex structures, which including the cross-overs, undulations, and overlaps between different winding passages of the fiber bundles, make it difficult to obtain their macro mechanical properties. And this work will provide a method to predict the three-dimensional equivalent elastic properties of the filament-wound composites based on the multi-scale homogenization principle. The representative volume element (RVE) in the meso-scale is defined on the basis of the filament winding pattern, which characterizes all the micro-architecture details of the filament wound composites, such as fiber undulation, winding angle and lamination arrangement. Referring to the principle of volume average in the analysis method of braided composites, a theoretical prediction model for the three-dimensional equivalent elastic constants of the filament wound composites is established by adopting the bridging model. Through this method, the results obtained for the previous experimental model are in good agreement with the experimental ones, which verifies the reliability of this model. In addition, the effects of some winding parameters, such as winding angle, on the equivalent elastic behavior of the filament-wound composites are analyzed. And the rules gained can provide a theoretical reference for the optimum design of filament-wound composites. The full version of this extended abstract will appear in Defence Technology in 2020.