碳纤维增强复合材料桥梁弯曲破坏过程有限元模拟

复合材料科学与工程 ›› 2014, Vol. 0 ›› Issue (1): 53-58.

碳纤维增强复合材料桥梁弯曲破坏过程有限元模拟

张威^*, 汪金花, 景晓颖

东华大学纺织学院,上海201620

收稿日期:2013-04-17 出版日期:2014-01-28 发布日期:2021-09-17
作者简介:张威(1988-),男,硕士研究生,研究方向为纤维增强复合材料力学,zw497786942@163.com。

FEM SIMULATION OF FAILURE PROCESS UNDER BENDING TEST FOR CARBON FIBER REINFORCED COMPOSITES BRIDGE

ZHANG Wei^*, WANG Jin-hua, JING Xiao-ying

College of Textiles, Donghua University, Shanghai 201620, China

Received:2013-04-17 Online:2014-01-28 Published:2021-09-17

摘要/Abstract

摘要： 利用MTS-810型万能强力机测试复合材料桥梁的弯曲性能,得到复合材料桥梁载荷-挠度曲线和弯曲破坏形态。基于复合材料桥梁的真实结构,建立连续实体壳单元桥梁模型,运用商用有限元软件Abaqus/Explicit计算桥梁的弯曲破坏过程。计算得到的载荷-挠度曲线与试验具有较好的一致性;破坏位置均发生在支撑辊的位置;复合材料桥梁的破坏模式主要表现为纤维断裂、基体开裂、分层破坏以及腹板屈曲失稳。研究结果表明,有限元法用于复合材料桥梁的性能预测和优化设计是有效的。

关键词: 纤维增强复合材料, 桥梁, 连续体壳单元, 有限元法 (FEM), 弯曲性能

Abstract: It is important to know the bending failure mechanisms for designing the composite structures in engineering field. The bending damage mechanisms and failure process of carbon fiber reinforced composites bridge are reported. The bending properties were tested on fiber reinforce composites bridge by MTS-810 universal testing machine. The load-deflection curve and failure modes were obtained. Based on the real structure of composites bridge, a continuum shell element model was established. Composites bridge was incorporated with a finite element code Abaqus/Explicit to simulate the bending failure process. Load-deflection curve obtained from the finite element method and the test result has good consistency. Failure was occurred in the position of the supporting rollers. Fiber breakage, matrix cracking, delamination and plate buckling were the main failure modes of the composites bridge. The result showed that the application of FEM in predicting the mechnical properties and optimization design of composites bridge is effective.

Key words: fiber reinforced composites, bridge, continuum shell element, finite element method (FEM), flexural properties

中图分类号:

TB332

张威, 汪金花, 景晓颖. 碳纤维增强复合材料桥梁弯曲破坏过程有限元模拟[J]. 复合材料科学与工程, 2014, 0(1): 53-58.

ZHANG Wei, WANG Jin-hua, JING Xiao-ying. FEM SIMULATION OF FAILURE PROCESS UNDER BENDING TEST FOR CARBON FIBER REINFORCED COMPOSITES BRIDGE[J]. COMPOSITES SCIENCE AND ENGINEERING, 2014, 0(1): 53-58.

参考文献

[1] C. Soutis. Fibre reinforced composites in aircraft construction[J]. Progress in Aerospace Sciences, 2005, (41): 143-151.
[2] Lelli Van Den Einde , L.Z., Frieder Seible. Use of FRP composites in civil structural applications[J]. Construction and Building Materials, 2003, (17): 389-403.
[3] 葛平. 应用于桥梁的纤维增强聚合物复合材料及其工艺综述[J]. 玻璃钢/复合材料, 2011, (5): 67-70.
[4] 吴良义. 先进复合材料在桥梁建造中的应用技术和市场预测[J]. 塑料工业, 2011, 39(12): 1-5.
[5] 吴亚平. 复合材料薄壁箱梁的剪滞剪切效应分析[J]. 土木工程学报, 1996, 29(4): 31-38.
[6] J. Lee, L.H., A. Thorne,etal. The structural characteristic of a polymer composite cellular box beam in bending[J]. Construction and Building Materials, 1995, 9(6): 333-340.
[7] 杨东涛,吴亚平, 苏强. 复合材料箱梁非线性分析的本构方程研究[J]. 兰州交通大学学报(自然科学版), 2005, 24(6): 17-19.
[8] 陈颖, 牛翠兵. 碳/玻璃混杂纤维复合材料力学性能及其加固混凝土梁抗弯性能研究[J]. 玻璃钢/复合材料, 2010, (4): 53-56.
[9] 陈华利,万水. 新型FRP桥面板型材承载力研究[J]. 公路, 2010, (4):83-85.
[10] 柏宇, 杨啸. 某GFRP拼装式桁架人行桥的动力学性能及耐久性[J]. 玻璃钢/复合材料, 2011, (5): 45-48.
[11] 刘斌,叶贵如,陈衡治,张志成. 单箱多室复合材料薄壁箱形梁的纯扭转分析[J]. 浙江大学学报(工学版), 2005, 39(5):746-750.
[12] 朱菊芳,初晓婷. 变化截面复合材料箱型结构后屈曲性态分析[J]. 大连工程学报, 2002, 42(1):36-41.
[13] 赵雷. 复合材料箱形梁桥节设计及静力分析[D]. 北京:国防科技大学, 2011.
[14] 修英姝,崔德刚. 复合材料层合板稳定性的铺层优化设计[J]. 工程力学, 2005, 6(12): 212-217.
[15] Hashin Z. Failure Criteria for Unidirectional Fiber Composites[J]. Journal of Applied Mechanics, 1980, (47):329-334.
[16] Abaqus Analysis User's Manual Version 6.11 [M]. Providence, RI, USA.: Dassault Systèmes Simulia Corp.,2011.
[17] Meyer-Piening H. R, Anderegg.R. Buckling and postbuckling investigations of imperfect curved stringer-stiffened composite shells, Part A: Experimental investigation and effective width evaluation. Thin-Walled Structures[J]. 1995, 23: 323-350.