[1]张亚芳,陈江平.不同掺量玻璃纤维增强水泥细观数值研究[J].深圳大学学报理工版,2010,27(1):103-108.
 ZHANG Ya-fang and CHEN Jiang-ping.Numerical study on glass fiber reinforced cement with different incorporation rates[J].Journal of Shenzhen University Science and Engineering,2010,27(1):103-108.
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不同掺量玻璃纤维增强水泥细观数值研究()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第27卷
期数:
2010年1期
页码:
103-108
栏目:
土木建筑工程
出版日期:
2010-01-31

文章信息/Info

Title:
Numerical study on glass fiber reinforced cement with different incorporation rates
文章编号:
1000-2618(2010)01-0103-06
作者:
张亚芳陈江平
广州大学土木工程学院,广州 510006
Author(s):
ZHANG Ya-fang and CHEN Jiang-ping
School of Civil Engineering,Guangzhou University,Guangzhou 510006,P. R. China
关键词:
建筑材料玻璃纤维增强水泥多相复合材料声发射
Keywords:
building materialglass fiber reinforced cementmulti-phase compositeacoustic emission
分类号:
TU 775
文献标志码:
A
摘要:
围绕玻璃纤维增强水泥(glass fiber reinforced cement,GRC)非均匀的材料特性,建立不同掺量GRC在三点弯曲条件下的数值分析模型,实现了材料试件由微裂纹萌生、扩展和贯通的全过程数值模拟.对比分析不同掺量GRC试件的最终破坏形态、荷载-位移全过程曲线、声发射时空分布和声发射应变能,研究了各试件的峰值强度、弯曲韧性和应变能的相对比值,结果表明,随着玻璃纤维掺量的增加,GRC的抗弯强度逐渐提高,韧性也不断增强.
Abstract:
In considering of the heterogeneous properties of existing glass fiber reinforced cement (GRC),a numerical model of GRC with different incorporation rates was presented to study the failure process and failure mechanism of GRC under three-point bending load. The fracture track,phenomenon of crack initiation,coalescence and development,the crack interaction and final penetration were simulated.Analyses were made on the ultimate failure models,completed load-displacement curve,the spatio-temporal distribution and strain energy of acoustic emission with different incorporation GRC.Results show show that the bending strength and toughness of GRC is higher with increase of incorporation rate of glass fiber.

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备注/Memo

备注/Memo:
收稿日期:2009-05-28;修回日期:2009-12-01
基金项目:国家自然科学基金资助项目(NSFC 50778046);广东省科技计划资助项目(2006B14601004,2009A030302016)
作者简介:张亚芳(1966-),女(汉族),湖北省黄石市人,广州大学教授、博士.E-mail:zhangyafang2004@163.com
更新日期/Last Update: 2010-02-06