Crashworthiness analysis of double-arrowed auxetic structure under axial impact loading

Gao, Qiang; Ge, Chengqiang; Zhuang, Weichao; Wang, Liangmo; Ma, Zheng-Dong

doi:10.1016/j.matdes.2018.11.013

Cited by 91 publications

(29 citation statements)

References 47 publications

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“…The panels with filling are characterized by high resistance and the ability to absorb impact energy. In the case of foamless systems (Gao et al 2019), the impact strength of a double-arrow auxetic (i.e. exhibiting negative Poisson's ratio) pyramidal structure is more sensitive to the geometric parameters of a longer arm than of a short arm.…”

Section: Introductionmentioning

confidence: 99%

Compression and low velocity impact response of wood-based sandwich panels with auxetic lattice core

2021

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The research determined the resistance to compression and low velocity impact of wood-based sandwich panels, the face sheet made of high-density fiber board, and high pressure laminate, while its auxetic lattice core was made by 3D printing using LayWood bio-composite filament. The core's auxetic property (i.e. exhibiting negative Poisson's ratio) was observed within the planes parallel to the facings. The ability of particular types of multilayer panels to absorb the energy was also determined. Based on the analysis of the obtained test results, it was proven that the core denoted as B, with inclination angle of the cell ribs $${{\varphi }_{x}=\varphi }_{y}=65^\circ$$ φ x = φ y = 65 ∘ , shows the highest compressive strength. It was determined that the dynamic load causes a very high overload in high-density fiber board face sheets. This results in damage to the sandwich panel surface and core structure. Cells of type B favorably minimize the differences in absorbed energy when using different face sheets and the energy value for low velocity impact. Taking into account the amount of absorbed energy, the most attractive is the panel with the D-type orthotropic core characterized by an inclination angle of the cell ribs $${\varphi }_{x}= 30^\circ , {\varphi }_{y}=60^\circ$$ φ x = 30 ∘ , φ y = 60 ∘ . The amount of energy absorbed by samples with high-density fiberboard face sheets increases significantly depending on the impactor's energy. For panels with face sheets manufactured from high-pressure laminate, the amount of energy absorbed decreases.

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Section: Introductionmentioning

confidence: 99%

Compression and low velocity impact response of wood-based sandwich panels with auxetic lattice core

2021

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“…Other significant architectures include the anti-chiral structures studied by Alderson et al [66] along with Pozniak and Wojciechowski [67] in addition to shape-preserving structures [68,69], and various composites [70,71]. Despite this, Zadpoor [72] found that studies in metals have been limited to beam-based architecture [73][74][75][76] with much less information on plate/sheet/walled/surface − architecture.…”

Section: Introductionmentioning

confidence: 99%

Additively manufactured AlSi10Mg inherently stable thin and thick-walled lattice with negative Poisson’s ratio

Arjunan

Singh

Baroutaji

et al. 2020

Composite Structures

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“…Due to the high physical and mechanical properties in term of high specific strength and stiffness, sandwich panels are being widely applied in various branches of engineering fields, including leading applications such as the aircraft, civil engineering and railway industries [1][2][3][4][5][6]. The sandwich panels with carbon fiber reinforced plastic (CFRP) face-sheets exhibited better mechanical performance lower weight compared to those with metal facesheets [7][8][9]. However, because of the poor toughness of the fiber reinforced plastic face-sheets, the face-sheets can be easily perforated due to the sandwich structures is sensitive to impact loading.…”

Section: Introductionmentioning

confidence: 99%

The low-velocity impact and compression after impact (CAI) behavior of foam core sandwich panels with shape memory alloy hybrid face-sheets

Wan

2019

Science and Engineering of Composite Materials

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Due to the properties of shape memory effect and super-elasticity, shape memory alloy (SMA) is added into glass fiber reinforced polymer (GFRP) face-sheets of foam core sandwich panels to improve the impact resistence performance by many researchers. This paper tries to discuss the failure mechanism of sandwich panels with GF/ epoxy face-sheets embedded with SMA wires and conventional 304 SS wire nets under low-velocity impact and compression after impact (CAI) tests. The histories of contact force, absorbed energy and deflection during the impact process are obtained by experiment. Besides, the failure modes of sandwich panels with different ply modes are compared by visual inspection and scanning electron microscopy (SEM). CAI tests are conducted with the help of digital image correlation (DIC) technology. Based on the results, the sandwich panels embedded with SMA wires can absorb more impact energy, and show relatively excellent CAI performance. This is because the SMA wires can absorb and transmit the energy to the outer region of GFRP face-sheet due to the super-elasticity-behavior. The failure process and mechanism of the CAI test is also discussed.

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Crashworthiness analysis of double-arrowed auxetic structure under axial impact loading

Cited by 91 publications

References 47 publications

Compression and low velocity impact response of wood-based sandwich panels with auxetic lattice core

Compression and low velocity impact response of wood-based sandwich panels with auxetic lattice core

Additively manufactured AlSi10Mg inherently stable thin and thick-walled lattice with negative Poisson’s ratio

The low-velocity impact and compression after impact (CAI) behavior of foam core sandwich panels with shape memory alloy hybrid face-sheets

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