Mechanical performance of polyhedral hollow glass units under compression
Mechanical performance of polyhedral hollow glass units under compression
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多面体中空玻璃单元受压力学性能
DOI：
10.1016/j.engstruct.2021.113730
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发表时间：
2022
影响因子：
5.5
通讯作者：
Akbarzadeh, Masoud
中科院分区：
文献类型：
--
作者：
Yost, Joseph Robert;Bolhassani, Mohammad;Chhadeh, Philipp Amir;Ryan, Liam;Schneider, Jens;Akbarzadeh, Masoud
本研究提出了一个实验程序和数值分析，旨在了解多面体中空玻璃单元 (H G U) 的强度和刚度特性，该玻璃单元旨在用于全玻璃、压缩主导、壳型结构的模块化结构。所提出的压缩主导几何形式是使用 3D/多面体图形静力学的形状查找方法开发的。这项研究通过利用玻璃的高抗压强度，向玻璃结构的新施工方法迈出了第一步。测试矩阵包括四个 H G U，其中两个各用 1 毫米和 2 毫米厚的胶带制成，其中玻璃板都是使用 5 轴磨料水射流切割的 10 毫米厚的退火浮法玻璃。测试是在 H G U 定向的情况下进行的，使得载荷被引入到两个甲板板的短侧边缘上，从而导致不对称的载荷支撑条件。所有样品均因弯曲屈曲而发生爆炸性破坏。应变和变形数据清楚地显示了弯曲变形引起的二阶行为的存在。一般来说，线性轴向行为转变为非线性二阶行为，随着挠度和应变增长速率的增加，最终导致屈曲甲板板的张力表面上的玻璃破裂。故障导致甲板完全解体，但任何侧板均未观察到裂纹，所有胶带均牢固连接。进行了配套的有限元分析以验证本研究的实验结果。实验和数值程序的结果清楚地证明了使用 H G U 进行压缩主导的全玻璃壳型结构的模块化构造的可行性。
This research presents an experimental program and a numerical analysis executed to understand the strength and stiffness properties of polyhedral hollow glass units (H G U) that are intended for use in modular construction of all-glass, compression-dominant, shell type structures. The proposed compression-dominant geometric form has been developed using the form finding methods of 3D/polyhedral graphical statics. This research takes the first steps towards a new construction methodology for glass structures by exploiting the high compression strength of glass. The test matrix includes four H G U s, two each fabricated with 1 mm and 2 mm thick adhesive tape where the glass plates are all 10 mm thick annealed float glass cut using a 5-axis abrasive waterjet. Testing was done with the H G U oriented such that load was introduced on the short side edges of the two deck plates, resulting in an asymmetric load-support condition. All samples failed explosively by flexural buckling. Strain and deformation data clearly show the presence of second order behavior resulting from bending deformation. In general, linear axial behavior transitions to nonlinear second order behavior, with increasing rates in deflection and strain growth ultimately ending in glass fracture on the tension surfaces of the buckled deck plates. Failure resulted in complete disintegration of the deck plates, but with no observable cracking in any of the side plates and a secure connection on all adhesive tape. A companion finite element analysis was performed to validate the experimental results of this study. The results of the experimental and numerical programs clearly demonstrate the feasibility of using H G U s for modular construction of compression-dominant, all-glass shell type structures.
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DOI：
--
发表时间：
2019
期刊：
Structures Congress 2019
影响因子：
--
作者：
M. Akbarzadeh;M. Bolhassani;Andrei Nejur;J. Yost;Cory Byrnes;J. Schneider;U. Knaack;C. B. Costanzi
通讯作者：
C. B. Costanzi
影响因子：
10.3
作者：
Vuong Nguyen-Van;B. Panda;Guomin Zhang;H. Nguyen-Xuan;P. Tran
通讯作者：
Vuong Nguyen-Van;B. Panda;Guomin Zhang;H. Nguyen-Xuan;P. Tran
联锁铸造玻璃组件，探索可拆卸的干式装配结构玻璃系统
DOI：
--
发表时间：
2018
期刊：
影响因子：
--
作者：
F. Oikonomopoulou;T. Bristogianni;L. Barou;E.A.M. Jacobs;Giulia Frigo;F. Veer;R. Nijsse
通讯作者：
R. Nijsse
影响因子：
5.6
作者：
F. Oikonomopoulou;F. Veer;R. Nijsse;K. Baardolf
通讯作者：
K. Baardolf
PolyFrame，3D 图形静态的高效计算
影响因子：
4.3
作者：
Nejur, Andrei;Akbarzadeh, Masoud
通讯作者：
Akbarzadeh, Masoud