玄武岩格栅增强水泥基复合材料单轴拉伸力学性能试验及本构关系模型

发布时间：2018-01-15 04:18

本文关键词：玄武岩格栅增强水泥基复合材料单轴拉伸力学性能试验及本构关系模型　出处：《复合材料学报》2017年10期 　论文类型：期刊论文

【摘要】：考虑玄武岩纤维增强树脂合物基复合材料(BFRP)格栅层数和水泥基复合材料(ECC)配比等因素,对BFRP增强大掺量粉煤灰/矿粉ECC棒骨试件进行了静力单轴拉伸试验,研究掺加增强粉煤灰/矿粉ECC的抗拉力学性能。结合试验数据,基于Richard和Abbot的弹塑性应力-应变公式提出掺加增强ECC的应力-应变本构关系模型。试验结果表明:随着掺加层数的增加,格栅增强ECC的极限抗拉强度显著增大。同配合比掺矿粉制成的ECC抗压强度、开裂应变及应力高于掺粉煤灰制成的ECC。掺加增强掺矿粉ECC试件相对掺粉煤灰ECC试件具有较好的抗拉力学性能。计算结果表明,建立的单轴受拉本构关系模型可以有效地预测掺加增强ECC的应力-应变关系和极限抗拉强度。
[Abstract]:Considering the basalt fiber reinforced resin composite matrix composite (BFRP) grid layer and cement matrix composites (ECC) ratio of BFRP, enhanced a large amount of fly ash / slag ECC rod bone specimens under uniaxial tensile test of adding enhanced tensile properties of fly ash / slag ECC. According to the experimental data, Richard and Abbot of the elastoplastic stress-strain formula proposed adding reinforced stress-strain constitutive model based on ECC. The experimental results show that with the increase of adding layers of geogrid reinforced, the ultimate tensile strength of ECC increased significantly. The same proportion of compressive strength of slag powder made of ECC above, made of fly ash mixed with slag ECC. enhanced ECC specimens compared with ECC fly ash specimens have better tensile properties of crack strain and stress. The calculation results show that the established uniaxial tension constitutive model can effectively The stress strain relationship and ultimate tensile strength were predicted with the addition of enhanced ECC.

【作者单位】：东南大学交通学院;
【基金】：国家自然科学基金(51578135;51278441) 江苏省普通高校研究生科研创新计划(KYLX16_0260)
【分类号】：TU528
【正文快照】： 网络出版地址:http://kns.cnki.net/kcms/detail/11.1801.TB.20170109.1511.002.html引用格式:朱忠锋,王文炜.玄武岩格栅增强水泥基复合材料单轴拉伸力学性能试验及本构关系模型[J].复合材料学报,2017,34(10):2367-2374.ZHU Zhongfeng,WANG Wenwei.Experiment on the uniaxial

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