article · Mechanics Based Design of Structures and Machines
This research evaluates the transient dynamic responses of bio-inspired helicoidal laminated composite plates subjected to moving loads. Using a higher-order finite element model that incorporates thickness stretching effects, the study analyses how these structural components deform under stress over time. The computational model successfully avoids shear locking issues when applied to helicoidal lamination schemes, and its predictions align closely with existing published data. The investigation explores multiple operational and structural variables, including moving load velocity and path, plate aspect ratio, orthotropy ratio, boundary conditions, and specific lamination arrangements. The findings reveal that dynamic dimensionless centre deflections and dynamic amplification factors depend significantly on these combined structural parameters and loading conditions.
Bio-inspired composite materials offer unique structural advantages, but predicting how they withstand moving loads is computationally challenging. By providing a reliable finite element model that avoids common calculation errors like shear locking, this work helps engineers better understand how these advanced materials flex and vibrate under moving dynamic forces.
This work represents early-stage computational modelling that could inform the design of advanced composite structures subjected to dynamic loads. Potential end users include structural engineers and simulation software developers seeking accurate numerical tools for bio-inspired materials. However, the abstract reports only theoretical and numerical investigations, meaning physical testing and prototyping are still required before practical commercial deployment.
AI-generated from the published abstract. Always read the original work before citing.
A study based on the transient responses of bio-inspired helicoidal laminated composite plates is performed by using a higher-order finite element model (HOFEM) consisting of the thickness stretching effect. The obtained results show good agreement with those available in the open literature. The shear locking phenomena is not inspected by employing the developed HOFEM for the helicoidal lamination schemes. The effects of path of the concentrated moving load, lamination scheme, boundary condition, speed, aspect and orthotropy ratios on the transient responses are investigated. Dynamic dimensionless center deflections and dynamic amplification factors are affected by considering not only the lamination scheme but also the path of the load, boundary condition, orthotropy and aspect ratios.
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DOI: 10.1080/15397734.2024.2341819
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