Compression performance evaluation of a novel origami-lattice metamaterial

Liu, Bei; Zou, Jiaqi; Yin, Haibin; Gu, Xilong; Yang, Yawen; Chen, Xi

doi:10.1016/j.ijmecsci.2024.109220

Cited by 10 publications

(1 citation statement)

References 67 publications

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“…Recently, numerous prefabricated components have emerged with the rapid development of prefabricated buildings, such as prefabricated floor structures [1][2][3][4]. The binding of the crossdistribution reinforcing mesh is an important part of prefabricating floor structures, which determines the construction quality, efficiency and cost of reinforcing mesh.…”

Section: Introductionmentioning

confidence: 99%

Design on thermal-mechanism coordination for binding reinforcing mesh based on shape memory polymer

Gu,

Yin,

Liu

et al. 2024

Smart Mater. Struct.

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The traditional rebar binding devices require complex drive and transmission mechanisms, which leads to large volume and complex structure. In this paper, a cylindrical thermoplastic shape memory polymer (SMP) fixture is proposed to verify the rebar binding method of thermal-mechanism coordination. The SMP fixture is manufactured by the injection molding technology through selecting suitable-ratio Polylactic acid (PLA) and Polycaprolactone (PCL) blend materials. Besides, an additional auxiliary device is presented to overcome the incomplete recovery disadvantage existing in the thermoplastic SMP and completely achieve binding the rebar. On this base, two different binding methods are proposed to compare the mechanical performance after fixing the rebar, and the external force/thermal contributions are tested and discussed in detail. The tested results show that the binding contribution of heat could reach 70% while the binding contribution of external force could reach 30% above the transition temperature (Tg). The maximum tensile force that the binding rebar can withstand under the thermal-mechanism coordination action could reach up to 657.7 N, which is higher than the maximum tensile force of the wire binding. In addition, the maximum friction force between rebar and notches of fixture could reach up to 94.1 N, which further verifies the feasibility of thermal-mechanism coordination for binding reinforcing mesh based on SMP fixture.

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Section: Introductionmentioning

confidence: 99%