Investigation of mass distribution between core and face sheet on bending energy absorption of self-reinforced PP sandwich beams

Ali, Imran; Qi, Shijie; Shi, Pengcheng; Ammar, Muhammad; Ali, Awais

doi:10.1016/j.tws.2020.107283

Cited by 6 publications

(4 citation statements)

References 43 publications

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“…The transverse deflection of the rear face sheet of composite sandwich structure was applied to characterize the energy absorption performance. [36,37] Figure 11 shows the transverse deformation of the center point of the rear face sheet of three auxetic structures under the high, medium and low impulses. It can be seen from Figure 11A-C that at the beginning of the response, the response speed and deformation of the center point of the rear face sheet of the structure with positive gradient distribution are lower than those of the auxetic structure with negative gradient and homogeneous distribution under three kinds of impact loads.…”

Section: Experimental Results Analysesmentioning

confidence: 99%

Investigation on the dynamic behavior of composite gradient double‐arrow auxetic structure under local impact load

Zeng

et al. 2022

Polymer Composites

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Based on the design concept of functionally graded materials, the composite gradient double-arrow auxetic structures were designed and fabricated. The thickness of core layers demonstrates an increasing trend for positive gradient structure, while a decreasing trend for negative gradient structure. The thickness of core layers keeps constant for homogeneous structure. The dynamic response and failure modes of the double-arrow auxetic structure with different gradient distributions of wall thickness were obtained by foam projectile impact experiments. The influence of the gradient distribution of core wall thickness on the impact resistance of composite double-arrow auxetic structures under local impact load was investigated. The results demonstrated that the gradient distribution of core wall thickness has an important influence on the dynamic response and failure modes of the structure. The negative gradient auxetic structure revealed more excellent impact resistance compared with the positive gradient auxetic structure. In addition, the response of the gradient double-arrow auxetic structure under local impact load was simulated by ABAQUS/Explicit, and the simulation results were in good agreement with the experimental results. Combined with the experimental and numerical simulation results, it was found that the negative gradient distribution of core wall thickness had an obvious improvement on the impact resistance of composite double-arrow auxetic structure under local impact load.

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Section: Experimental Results Analysesmentioning

confidence: 99%

Investigation on the dynamic behavior of composite gradient double‐arrow auxetic structure under local impact load

Zeng

et al. 2022

Polymer Composites

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“…In this research, an attempt was made to present a new geometry using the trapezoidal geometries presented in the references 21,22 and 23 which has higher flexural strength while having previous positive properties. In the mentioned references the thickness of the upper and lower bases in trapezoidal geometries is low and this has caused the moment of inertia of these parts to be low.…”

Section: Introductionmentioning

confidence: 99%

“…Their structures are composed of crushable cellular cores placed in between terminal stiffening plates. Commercial finite element software LS-DYNA was used for investigation of 3D printed PLA sacrificial honeycomb cladding by Rebelo et al 20 In this research, an attempt was made to present a new geometry using the trapezoidal geometries presented in the references 21,22 and 23 which has higher flexural strength while having previous positive properties. In the mentioned references the thickness of the upper and lower bases in trapezoidal geometries is low and this has caused the moment of inertia of these parts to be low.…”

Section: Introductionmentioning

confidence: 99%

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Flexural behavior of sandwich panels with 3D printed cellular cores and aluminum face sheets under quasi-static loading

Chahardoli

2022

Jnl of Sandwich Structures & Materials

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In this study, sandwich panels are presented with polylactic acid (PLA) core made through the FDM method. The face sheets of the panels are made out of aluminum 3105 alloy. The mechanical properties of the proposed samples were investigated under flexural quasi-static load. Different panels were tested by a three-point flexural test to determine their collapse properties; moreover, cubic specimens were exposed to quasi-static compression load. The results confirmed the effective role of layering type in the FDM method on the collapse properties of the sandwich panel. Results showed that type of the main pattern extension can affect the collapse properties. A comparison of the cubic samples under three different quasi-static compressive loading indicated that the collapse properties and absorbed energy of the samples depend on the loading direction. The proposed lightweight structures absorb high energy in comparison with ordinary one which was investigated in this paper; thus they can be an ideal structure for industries. Numerical modeling was another part of the study which was done by LS-DYNA and good agreement between numerical and experimental results was observed.

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Experimental and numerical investigation of flexural behavior of non-uniform thin-walled beams under three-point loading

Chahardoli

2022

J Braz. Soc. Mech. Sci. Eng.

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Investigation of mass distribution between core and face sheet on bending energy absorption of self-reinforced PP sandwich beams

Cited by 6 publications

References 43 publications

Investigation on the dynamic behavior of composite gradient double‐arrow auxetic structure under local impact load

Investigation on the dynamic behavior of composite gradient double‐arrow auxetic structure under local impact load

Flexural behavior of sandwich panels with 3D printed cellular cores and aluminum face sheets under quasi-static loading

Experimental and numerical investigation of flexural behavior of non-uniform thin-walled beams under three-point loading

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