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碳化与静载耦合作用下钢筋的腐蚀特性及拉伸行为

The Corrosion Characteristics and Tensile Behavior of Reinforcement under Coupled Carbonation and Static Loading.

作者信息

Xu Yidong

机构信息

School of Civil Engineering & Architecture, Ningbo Institute of Technology of Zhejiang University, Ningbo 315100, China.

出版信息

Materials (Basel). 2015 Dec 9;8(12):8561-8577. doi: 10.3390/ma8125479.

DOI:10.3390/ma8125479
PMID:28793729
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5458806/
Abstract

This paper describes the non-uniform corrosion characteristics and mechanical properties of reinforcement under coupled action of carbonation and static loading. The two parameters, namely area-box (AB) value and arithmetical mean deviation (), are adopted to characterize the corrosion morphology and pitting distribution from experimental observations. The results show that the static loading affects the corrosion characteristics of reinforcement. Local stress concentration in corroded reinforcement caused by tensile stress drives the corrosion pit pattern to be more irregular. The orthogonal test results from finite element simulations show that pit shape and pit depth are the two significant factors affecting the tensile behavior of reinforcement. Under the condition of similar corrosion mass loss ratio, the maximum plastic strain of corroded reinforcement increases with the increase of and load time-history significantly.

摘要

本文描述了碳化和静载耦合作用下钢筋的不均匀腐蚀特性和力学性能。采用面积盒（AB）值和算术平均偏差（）这两个参数，从实验观测结果来表征腐蚀形态和点蚀分布。结果表明，静载会影响钢筋的腐蚀特性。由拉应力引起的锈蚀钢筋局部应力集中会使腐蚀坑形态更加不规则。有限元模拟的正交试验结果表明，坑形状和坑深度是影响钢筋拉伸性能的两个重要因素。在腐蚀质量损失率相近的情况下，锈蚀钢筋的最大塑性应变随和加载时间历程的增加而显著增大。

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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0078/5458806/66e9f83b61d2/materials-08-05479-g016.jpg

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本文引用的文献

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2
Studies on the hemolytic activity of tentacle extracts of jellyfish Rhopilema esculentum Kishinouye: application of orthogonal test.海蜇触手提取物溶血活性的研究：正交试验的应用
Int J Biol Macromol. 2007 Feb 20;40(3):276-80. doi: 10.1016/j.ijbiomac.2006.06.020. Epub 2006 Jul 1.
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Materials (Basel). 2017 May 3;10(5):492. doi: 10.3390/ma10050492.
4
Interacting Effects Induced by Two Neighboring Pits Considering Relative Position Parameters and Pit Depth.考虑相对位置参数和坑深度的两个相邻坑所引起的相互作用效应。
Materials (Basel). 2017 Apr 9;10(4):398. doi: 10.3390/ma10040398.