Design optimization of double-layered structural insulated panels for windborne debris hazard
Design optimization of double-layered structural insulated panels for windborne debris hazard
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DOI：
10.1016/j.compositesb.2021.108806
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发表时间：
2021-03
期刊：
影响因子：
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通讯作者：
D. Saini;B. Shafei
中科院分区：
文献类型：
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作者：
D. Saini;B. Shafei
本文对双层结构隔热板的设计和性能进行了研究，重点研究了双层结构隔热板如何抵抗风载碎屑危害。这种复合板通常用于建筑围护结构，以提供隔热和节能优势。然而，如果设计不当，它们可能会因为风载碎片的撞击而面临失败的风险，特别是在大风地区。这一关键方面促使当前的研究建立了一个实验支持的计算平台，以评估DL-SIPs的关键响应指标，如能量吸收、最大位移和弹丸侵彻。然后进行了全局灵敏度分析，系统地评估了金属板和泡沫芯材所考虑的各种设计变量对DL-SiPS冲击响应特性的影响。该研究进一步扩展到使用两种代理模型(即径向基函数网络和克立格模型)对DL-SIPS进行多目标设计优化。根据优化结果，确定了设计细节和抗冲击措施之间的权衡。这导致了一套推荐的配置，以适当地抵抗风带来的碎片冲击，同时避免过度设计的DL-sips。
The design and performance of double-layered structural insulated panels (DL-SIPs) are investigated in this study with a focus on how they resist the windborne debris hazard. Such composite panels are commonly used in building envelopes to provide insulation and energy-saving advantages. However, if not designed properly, they can be at the risk of failure due to windborne debris impact, especially in high wind regions. This critical aspect motivated the current study to establish an experimentally-supported computational platform to assess the DL-SIPs, in terms of their key response measures, such as energy absorption, maximum displacement, and projectile penetration. A global sensitivity analysis is then conducted to systematically evaluate the effects of various design variables considered for metal sheets and foam cores on the impact response characteristics of the DL-SIPs. This study is further extended to perform a multi-objective design optimization for the DL-SIPs using two surrogate models (i.e., radial basis function network and kriging model). From the optimization results, the trade-offs between the design details and the impact resistance measures are determined. This leads to a set of configurations recommended for the DL-SIPs to properly resist windborne debris impact, while avoiding an overdesign.