Abstract
In order to avoid the delamination of traditional tubular composite materials and reduce its woven cost, on an ordinary loom, the three-dimensional (3D) tubular woven fabrics were woven with basalt filament tows, and then the 3D tubular woven composites were prepared with epoxy resin by a hand layup process. The wall thickness of the 3D tubular woven composite was thin, and was only 2 mm thick. Through experiments and finite element method (FEM) simulation, the axial compression properties of the material were analyzed. The results show that the material 2 mm thick has good axial compression performance, the maximum load value of the experiment is 10,578 N, and the maximum load value of the finite element simulation is 11,285 N. The error between the two is 6.68%, indicating that the experiment and simulation have a good consistency. The failure mode of the material is also analyzed through finite element method simulation in the paper, thus revealing the failure stress propagation, local stress concentration, and failure morphology of the material. It provides an effective reference for the design and application of the 3D tubular woven composite.
Highlights
With the sustained and rapid development of economy and technology, the transportation industry has become increasingly diversified
The results found that the specific energy absorption of special geometrical shapes of the composite tubes is significantly higher than that of the standard and uniform profiles
By the analysis of the material properties and the crushing parameters, the results revealed that the fabric carbon/epoxy tubes had the best energy absorption capability whereas the Kevlar tubes showed the worst energy absorption capability
Summary
With the sustained and rapid development of economy and technology, the transportation industry has become increasingly diversified. The specific energy of tubes in lateral crushing were significantly lower than those in axial crushing These works enrich the research on tubular composite material and present the effects of structures and reinforcing fibers on the mechanical properties of tubular composite materials. A 3D non-linear finite-element model that allowed for the plasticity of materials using an anisotropic hardening model with strain rate dependence and failure was proposed in the simulation process, an explicit dynamic solver was used to address the lateral crashing of the tubes the comparative analysis of results between experiments and finite element method simulation demonstrated the correctness of the finite element method simulation, indicating that this method can be successfully used to design and optimize energy absorbing tubular structures made with flax overlapped yarns in a 3D four-direction braided tubular composite.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
