Crashworthiness comparison of two-dimensional cellular sandwich cores under axial compression load

Qu, Zhipeng; Liu, Yabo; Ning, Xin; Dong, Zhichao

doi:10.1016/j.mechrescom.2022.103900

Cited by 5 publications

(2 citation statements)

References 32 publications

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“…Nowadays, dynamic investigations are used to determine crashworthiness. It also entails structurally optimizing the geometries involved in order to allow for more energy absorption and, as a result, ensure the passengers vitality (Prabhaharan et al, 2022;Qu et al, 2022;Supian et al, 2022). On the other hand, there is a large diversity of research on structural mechanical behavior when there is a frontal accident, for the most diverse transportation modes (Ionut Alexandru et al, 2022;Kim et al, 2022;Rivera-Hern andez et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of a coach door under a frontal impact

Lopes

Barros

Melo

et al. 2022

IJSI

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PurposeThe vehicle´s body front pillar should absorb most of the striker kinetic energy, while only a fraction of that is absorbed by the door structure. This study aims to discuss the aforementioned issue. In this test the striker is a virtual entity. Six uniaxial strain gauges are installed throughout the door. Additionally, contactless 3D digital image correlation (DIC) allows to assess the major door panel’s continuous deformation and strain fields.Design/methodology/approachA coach is a large and heavy long-distance passenger transport vehicle. Their structural certification, classifies coaches as M3 Class III vehicles. New coach structures’ designs need analyses of each sub-system for critical pre-validation of the entire structure, aiming driver and passenger carrier safety. Also, a thorough examination due to increased travel speed is needed.FindingsExperimental pseudo-dynamic (PSD) results were compared and validated using finite element method (FEM) with two pieces of distinct FEM software (Abaqus® and PamCrash®). The time dependent solution was carried out by explicit techniques. Results by FEM and PSD test showed good agreement, evidencing the reliability of the tools selected. Results by PamCrash® were closer to the experimental data.Practical implicationsR-29 is truck-only regulation, however can be adapted to coaches in case of a frontal collision. The present work focuses on the impact behavior of the passenger front door subsystem.Originality/valueAs a first validation the entire structure, the behavior of a vehicle door, under in-plane impacts was studied. The corresponding deformation energy absorbed by the frontal passenger coach door under virtual impacts of a swinging striker was assessed using a PSD approach.

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Section: Introductionmentioning

confidence: 99%

“…It also entails structurally optimizing the geometries involved in order to allow for more energy absorption and, as a result, ensure the passengers vitality (Prabhaharan et al. , 2022; Qu et al. , 2022; Supian et al.…”

Section: Introductionmentioning

confidence: 99%