|本期目录/Table of Contents|

[1]张冰洁,彭宇,方园,等.湿热环境下纤维增强树脂-泡沫夹层结构Ⅱ型断裂理论分析[J].南京工业大学学报(自然科学版),2020,42(02):223-230.[doi:10.3969/j.issn.1671-7627.2020.02.013]
 ZHANG Bingjie,PENG Yu,FANG Yuan,et al.Theoretical study of mode Ⅱ fracture of fiber reinforced polymer-foam core composite sandwich structures under hygrothermal condition[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2020,42(02):223-230.[doi:10.3969/j.issn.1671-7627.2020.02.013]
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湿热环境下纤维增强树脂-泡沫夹层结构Ⅱ型断裂理论分析()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
42
期数:
2020年02期
页码:
223-230
栏目:
出版日期:
2020-03-22

文章信息/Info

Title:
Theoretical study of mode Ⅱ fracture of fiber reinforced polymer-foam core composite sandwich structures under hygrothermal condition
文章编号:
1671-7627(2020)02-0223-08
作者:
张冰洁1彭宇2方园1霍瑞丽1徐丹洋1刘伟庆1
1.南京工业大学 土木工程学院,江苏 南京 211800; 2.南京市建邺区政府办公室,江苏 南京 210019
Author(s):
ZHANG Bingjie1PENG Yu2FANG Yuan1HUO Ruili1XU Danyang1LIU Weiqing1
1. College of Civil Engineering, Nanjing Tech University, Nanjing 211800, China; 2. Nanjing Jianye District Government Office, Nanjing 210019, China
关键词:
纤维增强树脂 泡沫夹层结构 湿热老化 Ⅱ型临界能量释放率 叠层板理论
Keywords:
fiber-reinforced polymer foam core composite sandwich structures hygrothermal aging mode Ⅱ critical energy release rate laminated plates theory
分类号:
TB332
DOI:
10.3969/j.issn.1671-7627.2020.02.013
文献标志码:
A
摘要:
玻璃纤维增强树脂(GFRP)-泡沫夹层结构以其轻质、耐腐蚀、抗弯抗压性能优异等特点使其广泛应用于墙板、快速道路铺装等工程中。然而在服役期间,GFRP-泡沫夹层结构通常处于高湿的工作环境中,这势必对夹层结构的各项性能产生影响。在造成GFRP-泡沫夹层结构损伤破坏的诸多因素中,剥离损伤占据了很大的比例,滑移型剥离(Ⅱ型断裂)破坏不容忽视。基于一阶剪切变形的叠层板理论,对带有初始裂纹的GFRP-泡沫夹层结构进行理论分析,推导出含有相关参数的Ⅱ型临界能量释放率表达式,并用该理论值与试验值进行对比,验证其正确性。
Abstract:
Glass fiber reinforced polymer(GFRP)-foam core composite sandwich structures have been widely used in facade panels, rapid road pavement and other projects due to their lightweight, corrosion resistance, excellent bending and compressive properties. However, during the service period, the GFRP-foam core composite sandwich structures are usually exposed to moisture at elevated temperatures in practice, which will inevitably affect the performance of the sandwich structures. Among the factors that cause the damage of the GFRP-foam core sandwich structures, the interfacial delamination accounts for a large proportion, and the slip-type stripping(mode Ⅱ fracture)cannot be neglected. Based on the theory of laminated plates with first-order shear deformation, the theoretical analysis of the GFRP-foam core sandwich structures with initial cracks was carried out, and the expression of mode Ⅱ critical energy release rate with correlation parameters was derived. The theoretical values were found to be well matched with the experimental ones.

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备注/Memo

备注/Memo:
收稿日期:2018-06-09
基金项目:国家自然科学基金(51608264,51408304); 江苏省科技厅基础计划(自然科学基金)(BK20140947)
作者简介:张冰洁(1993—),女,E-mail:1035067620@qq.com; 方园(联系人),副研究员,E-mail:yuanfang@njtech.edu.cn.
引用格式:张冰洁,彭宇,方园,等.湿热环境下纤维增强树脂-泡沫夹层结构Ⅱ型断裂理论分析[J].南京工业大学学报(自然科学版),2020,42(2):223-230.
ZHANG Bingjie, PENG Yu, FANG Yuan, et al. Theoretical study of mode Ⅱ fracture of fiber reinforced polymer-foam core composite sandwich structures under hygrothermal condition[J].Journal of Nanjing Tech University(Natural Science Edition),2020,42(2):223-230..
更新日期/Last Update: 2020-03-20