物理钢化玻璃裂纹形态试验及Voronoi形态表征  

Fracture Morphology of Tempered Glass and Voronoi Tessellation-Based Regeneration

作　　者：朱禹翰 杨健[1,2] 王星尔 张凯[1,2] 王义戈 ZHU Yuhan;YANG Jian;WANG Xing-er;ZHANG Kai;WANG Yige(State Key Laboratory of Ocean Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;Shanghai Key Laboratory for Digital Maintenance of Buildings and Infrastructure,School ofNaval Architecture,Ocean and Civil Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海交通大学海洋工程国家重点实验室,上海200240 [2]上海市公共建筑和基础设施数字化运维重点实验室,上海交通大学船舶海洋与建筑工程学院,上海200240

出　　处：《硅酸盐学报》2022年第2期482-491,共10页Journal of The Chinese Ceramic Society

基　　金：国家自然科学基金项目(51908352,52078293)。

摘　　要：开裂玻璃层残余作用是评估夹层玻璃开裂后性能的重要指标,玻璃裂纹形态对其有显著影响。对于夹层玻璃广泛使用的物理钢化玻璃,其裂纹形态受玻璃表面应力、厚度、开裂位置等因素影响,目前缺乏其形态表征相关研究。首先对81组物理钢化玻璃进行碎裂试验,围绕碎片面积、周长、圆度、分布密度等形态及空间分布指标进行统计分析,明确在表面应力60~105 MPa、厚度6~12 mm和3种开裂位置条件下的裂纹形态和碎片空间分布变化规律。随后,基于控制碎片全局密度和最近邻距离原则,提出了一种新的碎片形心布设方法,并结合Voronoi形态方法对物理钢化玻璃的裂纹形态进行表征。通过与试验结果比较验证,所提出的裂纹形态表征方法具有较高的重构精度。The residual effect of fractured glass,which is greatly affected by its fracture morphology,is correlated to the post-fracture performance of laminated glass.For tempered glass in laminated glass,its fracture morphology is affected by some major variables such as surface compressive stress,thickness,and fracture point.However,a few previous work concerning the fracture morphology characterization are reported.In this paper,fragmentation tests were firstly conducted on 81 tempered glass specimens.The fracture morphology and spatial distribution,including fragment area,perimeter,circularity and distribution intensity,were analyzed.The fracture morphology and spatial distribution obtained at the given variables(i.e.,surface compressive stress of 60–105 MPa,thickness of 6–12 mm,three fracture points)were discussed.Also,a new seeds generation approach for the centroid of fragments to control nearest neighbor distance and global distribution intensity of fragments was proposed,which was combined with the Voronoi tessellation to characterize the fracture morphology of tempered glass.The proposed method has a satisfactory accuracy in generating the fracture morphology.

关 键 词：钢化玻璃 半钢化玻璃 裂纹形态 Voronoi形态 表面应力 

分 类 号：TU382[建筑科学—结构工程]