铝框复合材料夹芯板的制备及其受弯性能

doi:10.19936/j.cnki.2096-8000.20251228.014

摘要/Abstract

摘要： 为满足高原型拆装式存储装置耐久性要求,本文设计了一种新型铝框复合材料夹芯板。采用试验、理论和有限元的方法研究了铝框复合材料夹芯板的受力性能。试验采用配重砝码块进行重力分级均布加载,模拟铝框复合材料夹芯板在风荷载下的受力响应,在最大一级荷载(2.46 kN/m²)作用下,铝框复合材料夹芯板跨中挠度值为4.74 mm,为正常使用极限范围挠度限值5.52 mm(l/400)的85.87%。运用复合材料夹层结构经典理论,推导了铝框复合材料夹芯板跨中挠度计算公式,理论计算值大于试验值,最大误差为9.90%,总体吻合较好。使用ANSYS/Multiphysics软件建立了铝框复合材料夹芯板三维模型并进行有限元分析,模拟铝框复合材料夹芯板在风荷载下的响应,有限元模拟值小于试验值,最大误差为9.62%,吻合较好。采用复合材料夹芯板有限元模型进行参数分析,在最大一级荷载加载下,发现有铝框、有格构腹板和提高面板厚度分别使跨中挠度降低了57.43%、78.05%和30.16%。

关键词: 拆装式存储装置, 铝框复合材料夹芯板, 弯曲试验, 数值模拟, 理论分析

Abstract: A new type of aluminium-framed composite sandwich slab was designed to meet the high load-bearing capacity requirements of plateau-type dismantled storage devices. Experimental, theoretical and finite element methods were used to study the mechanical behavior of the aluminium frame composite sandwich slab. The counterweight was used to simulate the response of the aluminium-framed composite sandwich slab under the wind load,and the mid-span deflection value of the aluminium-framed composite sandwich slab was 4.74 mm under the maximum primary load (2.46 kN/m²), which was 85.87% of the deflection limit of 5.52 mm(l/400)in the normal service limit range. The mid-span deflection formula was derived of the aluminium frame composite sandwich slad by the classical theory of composite sandwich structure, and the theoretical calculated value was slightly larger than the experimental value, with a maximum error of 9.90%, which matched well in general. The 3D model of aluminium-framed composite sandwich slab was established by ANSYS/Multiphysics software and the finite element analysis was carried out to simulate the response of aluminium frame composite sandwich slab under the wind load. The finite element simulation result is slightly smaller than the experimental result, the results of finite element analysis are in good agreement with the experimental data. The 3D model of the composite sandwich panel was used for finite element parametric analysis, with aluminium frame, lattice webs and increased panel thickness, which was found that the mid-span deflection was reduced by 57.43%, 78.05% and 30.16% under the maximum primary loading.

Key words: demountable storage devices, aluminium-framed composite sandwich slab, bending test, numerical simulation, theoretical analysis

中图分类号:

TB332

刘明龙, 方海, 张中威, 宋春明, 徐佳佳. 铝框复合材料夹芯板的制备及其受弯性能[J]. 复合材料科学与工程, 2025, 0(12): 103-113.

LIU Minglong, FANG Hai, ZHANG Zhongwei, SONG Chunming, XU Jiajia. Fabrication and flexural performance of aluminum frame composite sandwich panels[J]. COMPOSITES SCIENCE AND ENGINEERING, 2025, 0(12): 103-113.

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