NUMERICAL SIMULATION ON SANDWICH PANELS WITH ROTATIONAL FRICTION HINGE DEVICE AGAINST BLAST LOADING
Blast-resistant structures,such as blast door panel,are designed and fabricated in a solid way to resist blast or high velocity impact loads.This not only increases the material and construction costs,but also undermines the operational performance of the protective structures.To overcome these problems,many researchers try to use high-strength materials and different structural forms in structural design to resist the blast and impact loads.This study introduces a new configuration of sandwich door panel equipped with rotational friction hinge device with spring (RFHDS) to resist blast loading.The RFHDS can help the panel equipped with RFHDS to recover,at least partially its original configuration after blast loading and maintain its operational and blast-resistance capability after a blast event.The energy absorption and blast loading resistance capacities of this proposed sandwich panel are numerically investigated by using finite element code Ls-Dyna.It is found that the proposed sandwich door panel with RFHDS can improve the blast-resistant capacity significantly.In order to maximize the performance of the proposed sandwich panel,parametric studies on the blast-resistant panels with RFHDS of different configurations are also carried out.The best performing sandwich panel with RFHDS in resisting blast loadings is identified.This new configuration of sandwich door panel can be employed to mitigate blast loading effects in structural panel design.
Blast resistance energy absorption Ls-Dyna numerical study rotational friction hinge device
Wensu Chen Hong Hao
School of Civil and Resource Engineering, the University of Western Australia,35 Stirling Highway, Crawley WA 6009, Australia
国际会议
The Twelfth International Symposium on Structural Engineering (第十二届结构工程国际研讨会)
武汉
英文
650-657
2012-11-17（万方平台首次上网日期，不代表论文的发表时间）