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A platform for research: civil engineering, architecture and urbanism
Lateral crushing behavior of tubular lattice structures with triply periodic minimal surface architectures
https://orcid.org/0000-0003-3163-7998
Abstract Tubular lattice structures had attracted significant attention due to their remarkable mechanical performance and lightweight, but there had been few research on their lateral crushing behaviors. In the present work, a novel tubular lattice structure with triply periodic minimal surface (TPMS), named TPMS-T, was manufactured to examine its energy absorption characteristics under lateral crushing through experiments and finite element (FE) simulations, with three types of unit-cell configurations considered for comparison. The numerical predictions of deformation modes and energy absorption responses were in good agreement with the corresponding experimental results. The energy absorption characteristics of three types of TPMS-T were further compared against the single circular tube (SCT) and typical nested tube systems with the same mass and outer size. It was found that TPMS-T exhibited superior crashworthiness performance than the corresponding SCT and typical nested tube system counterparts. The specific energy absorption () of three types of TPMS-T exceeded that of corresponding SCT by 70% to 133%, and fourfold-tube nested system (FT) by 24% to 61%, respectively. The influence of the relative density, tube thickness and tube outer diameter on the crushing behaviors of TPMS-T was numerically investigated to further understand the crushing mechanism of TPMS-T under lateral crushing. Results showed that the energy absorption performance exhibited an increase trend with increasing the relative density, and crashworthiness indicators could be expressed as a power function of the relative density. Moreover, the tube thickness and tube outer diameter had a large influence on the energy absorption capacity of TPMS-T. Finally, the multi-objective optimization design was further performed to obtain optimized TPMS-T configurations subjected to lateral crushing. The present work was expected to provide researchers and engineers with insights into the design of TPMS-T for structural crashworthiness applications.
Graphical abstract Display Omitted
Highlights A novel type of triply periodic minimal surface based tubular lattice structure, named TPMS-T was proposed. The crashworthiness characteristics of TPMS-T were investigated under lateral crushing. Energy absorption performances of TPMS-T were compared with typical nested tube systems and lattice shell structures. The influences of the relative density, tube thickness and outer diameter on the structural crashworthiness were studied. The multi-objective optimization design using RBF surrogate models and NSGA-II algorithm was performed for TPMS-T.
Lateral crushing behavior of tubular lattice structures with triply periodic minimal surface architectures
https://orcid.org/0000-0003-3163-7998
Abstract Tubular lattice structures had attracted significant attention due to their remarkable mechanical performance and lightweight, but there had been few research on their lateral crushing behaviors. In the present work, a novel tubular lattice structure with triply periodic minimal surface (TPMS), named TPMS-T, was manufactured to examine its energy absorption characteristics under lateral crushing through experiments and finite element (FE) simulations, with three types of unit-cell configurations considered for comparison. The numerical predictions of deformation modes and energy absorption responses were in good agreement with the corresponding experimental results. The energy absorption characteristics of three types of TPMS-T were further compared against the single circular tube (SCT) and typical nested tube systems with the same mass and outer size. It was found that TPMS-T exhibited superior crashworthiness performance than the corresponding SCT and typical nested tube system counterparts. The specific energy absorption () of three types of TPMS-T exceeded that of corresponding SCT by 70% to 133%, and fourfold-tube nested system (FT) by 24% to 61%, respectively. The influence of the relative density, tube thickness and tube outer diameter on the crushing behaviors of TPMS-T was numerically investigated to further understand the crushing mechanism of TPMS-T under lateral crushing. Results showed that the energy absorption performance exhibited an increase trend with increasing the relative density, and crashworthiness indicators could be expressed as a power function of the relative density. Moreover, the tube thickness and tube outer diameter had a large influence on the energy absorption capacity of TPMS-T. Finally, the multi-objective optimization design was further performed to obtain optimized TPMS-T configurations subjected to lateral crushing. The present work was expected to provide researchers and engineers with insights into the design of TPMS-T for structural crashworthiness applications.
Graphical abstract Display Omitted
Highlights A novel type of triply periodic minimal surface based tubular lattice structure, named TPMS-T was proposed. The crashworthiness characteristics of TPMS-T were investigated under lateral crushing. Energy absorption performances of TPMS-T were compared with typical nested tube systems and lattice shell structures. The influences of the relative density, tube thickness and outer diameter on the structural crashworthiness were studied. The multi-objective optimization design using RBF surrogate models and NSGA-II algorithm was performed for TPMS-T.
Lateral crushing behavior of tubular lattice structures with triply periodic minimal surface architectures
https://orcid.org/0000-0003-3163-7998
Abstract Tubular lattice structures had attracted significant attention due to their remarkable mechanical performance and lightweight, but there had been few research on their lateral crushing behaviors. In the present work, a novel tubular lattice structure with triply periodic minimal surface (TPMS), named TPMS-T, was manufactured to examine its energy absorption characteristics under lateral crushing through experiments and finite element (FE) simulations, with three types of unit-cell configurations considered for comparison. The numerical predictions of deformation modes and energy absorption responses were in good agreement with the corresponding experimental results. The energy absorption characteristics of three types of TPMS-T were further compared against the single circular tube (SCT) and typical nested tube systems with the same mass and outer size. It was found that TPMS-T exhibited superior crashworthiness performance than the corresponding SCT and typical nested tube system counterparts. The specific energy absorption () of three types of TPMS-T exceeded that of corresponding SCT by 70% to 133%, and fourfold-tube nested system (FT) by 24% to 61%, respectively. The influence of the relative density, tube thickness and tube outer diameter on the crushing behaviors of TPMS-T was numerically investigated to further understand the crushing mechanism of TPMS-T under lateral crushing. Results showed that the energy absorption performance exhibited an increase trend with increasing the relative density, and crashworthiness indicators could be expressed as a power function of the relative density. Moreover, the tube thickness and tube outer diameter had a large influence on the energy absorption capacity of TPMS-T. Finally, the multi-objective optimization design was further performed to obtain optimized TPMS-T configurations subjected to lateral crushing. The present work was expected to provide researchers and engineers with insights into the design of TPMS-T for structural crashworthiness applications.
Graphical abstract Display Omitted
Highlights A novel type of triply periodic minimal surface based tubular lattice structure, named TPMS-T was proposed. The crashworthiness characteristics of TPMS-T were investigated under lateral crushing. Energy absorption performances of TPMS-T were compared with typical nested tube systems and lattice shell structures. The influences of the relative density, tube thickness and outer diameter on the structural crashworthiness were studied. The multi-objective optimization design using RBF surrogate models and NSGA-II algorithm was performed for TPMS-T.
Lateral crushing behavior of tubular lattice structures with triply periodic minimal surface architectures
Wan, Liang (author) / Hu, Dayong (author) / Wan, Mincen (author) / Yang, Zhenyu (author) / Zhang, Hongbo (author) / Pi, Benlou (author)
Thin-Walled Structures ; 189
2023-05-24
Article (Journal)
Electronic Resource
English