Effect of layering layout on the energy absorbance of bamboo-inspired tubular composites

Amirreza Tarafdar, Omid Razmkhah, Hamed Ahmadi, Gholamhossein Liaghat, Sahand Chitsaz Charandabi, Moslem Rezaei Faraz

    Research output: Contribution to journalArticlepeer-review

    16 Citations (Scopus)


    Gradient distribution of vascular structure made the bamboo wall structure so effective which improved the load-bearing capacity of such bio-mimicked energy absorption structures and modify the crush behavior of thin-walled composite tubes. In this research, the influence of the layering design and stacking sequence on the crush behavior, failure mechanism and absorbed energy of bamboo-inspired GFRP composite tubes is assessed experimentally and numerically. Quasi-static compression tests were conducted to explore seven permutations of Coarse Woven (CW), Fine Woven (FW), and Unidirectional (UD) E/glass fiber sheets, taking into account the longitudinal vascular bundles strengthened by organic matrix. Samples were fabricated employing a modified hand laying up method by using mechanical pressure to obtain better surface finishing and interlaminar adhesion compared to conventional hand layering up methods. To evaluate the corresponding crashworthiness parameters and characterize the crushing behavior of composite tubes, quasi-static axial compressive loading was done. The numerical simulations were validated versus experiments by a commercial finite element (FE) LS-DYNA integrating material model 54. The predicted load-displacement curves and failure mechanisms of FE analysis demonstrate acceptable correlations with visual observations during experimentation. Furthermore, the parametric numerical was performed to examine the effect of different distributions of vascular bundles. The FE analysis results revealed that the crushing behavior of bio-inspired composite tubes depended substantially on layering configuration and the stacking sequence design. The outcomes showed that the combination of woven and unidirectional fibers, respectively, located in the inner layer and hoop direction provide the optimal layering configuration design in terms of crush length efficiency, crush load efficiency, Specific energy absorption, stable progressive crushing, and better manufacturing quality.

    Original languageEnglish
    Pages (from-to)602-623
    Number of pages22
    JournalJournal of Reinforced Plastics and Composites
    Issue number15-16
    Early online date21 Jan 2022
    Publication statusPublished - Aug 2022

    Bibliographical note

    Publisher Copyright:
    © The Author(s) 2022.


    • axial compression
    • Composite tube
    • energy absorption
    • finite element analysis
    • layering configuration
    • thin-walled structures

    ASJC Scopus subject areas

    • Ceramics and Composites
    • Mechanics of Materials
    • Mechanical Engineering
    • Polymers and Plastics
    • Materials Chemistry


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