| 双材料界面断裂力学模型与实验方法 |
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| 引用本文： | 陈瑛,乔丕忠,姜弘道,任青文.双材料界面断裂力学模型与实验方法[J].力学进展,2008,38(1):53-61. |
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| 作者姓名： | 陈瑛 乔丕忠 姜弘道 任青文 |
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| 作者单位： | 山东大学土木系Department of Civil and Environmental Engineering, Washington StateUniversity, 99164, USA河海大学工程力学系河海大学工程力学系 南京 |
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| 摘 要： | 纤维增强聚合物(FRP)质轻、高强, 可提高结构的刚度、强度、抗震性能和耐久性, 近年来在结构加固及工程改造中得到广泛应用. FRP与传统复合材料之间形成双材料黏结界面, 界面断裂特性是决定双材料结构性能的关键因素. 对双材料界面裂纹尖端应力场理论、界面裂纹模型、黏结界面I型、II型及混合型断裂试验及理论研究现状进行综合评述和分析. 界面模型主要有经典梁/板理论和刚性节点模型、考虑剪切变形的双亚层理论和半刚性节点模型、基于双亚层理论的柔性节点模型、考虑剪切变形的多层亚层理论和多亚层柔性节点模型、弹性地基梁模型以及黏聚模型. 还介绍了双材料界面断裂力学在FRP-混凝土研究中的应用.
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| 关 键 词： | 双材料 界面 断裂 混凝土 |
| 收稿时间： | 2006-07-06 |
| 修稿时间： | 2007-12-07 |
REVIEW ON EXPERIMENTAL METHODS AND FRACTURE MODELS FOR BI-MATERIAL INTERFACES |
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| CHEN Ying,QIAO Pizhong,JIANG Hongdao,REN Qingwen.REVIEW ON EXPERIMENTAL METHODS AND FRACTURE MODELS FOR BI-MATERIAL INTERFACES[J].Advances in Mechanics,2008,38(1):53-61. |
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| Authors: | CHEN Ying QIAO Pizhong JIANG Hongdao REN Qingwen |
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| Abstract: | With increasing use of advanced composite and hybrid
materials in engineering, the analysis of fracture mechanisms
of interface bond between conventional materials and composites (e.g.,
fracture of concrete-composite or wood-composite interface) becomes an
interesting topic. In this paper, the recent development of fracture models of
bi-material interfaces is reviewed. The crack tip fields at a bi-material
interface are first disussed, followed by a comparison of different
theories for interface fracture analysis, including (1) Classical
beam/plate theory and rigid joint model, (2) Bi-layer shear deformable beam
theory and semi-rigid joint model, (3) Bi-layer interface deformable model
and flexible joint model, (4) Multi-sub-layer shear deformable beam theory
and multi-sub-layer joint model, (5) Beam on elastic foundation model, and
(6) Non-linear cohesive model. The analytical models, common fracture
specimen configurations, and experimental techniques for mode I, mode II and
mixed mode fracture of adhesively bonded interface are compared. An
overview of researches on fracture of concrete-FRP bonded interfaces is
presented, and some recommendations are made and future research
directions for fracture of bi-material interface are pointed out. |
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| Keywords: | Bi-material interface concrete fracture |
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