铜合金网状结构疲劳试验及结果分析  

Fatigue Test and Results Analysis of Copper Alloy Netting Structure

作　　者：王绍敏[1] 郭杰进 袁太平 邱屿 谌伟[2] 刘永利[3] 陶启友[1] WANG Shao-min;GUO Jie-jin;YUAN Tai-ping;QIU Yu;SHEN Wei;LIU Yong-li;TAO Qi-you(Guangdong Cage Engineering Research Center,Key Laboratory of Open-Sea Fishery Development,Ministry of Agriculture,South China Sea Fisheries Research Institute,Chinese Academy of Fishery Sciences,Guangzhou 510300,China;School of Transportation,Wuhan University of Technology,Wuhan 430063,China;East China Sea Fisheries Research Institute,Chinese Academy of Fishery Sciences,Shanghai 200090,China)

机构地区：[1]中国水产科学研究院南海水产研究所,农业部外海渔业开发重点实验室,广东省网箱工程技术研究中心,广州510300 [2]武汉理工大学交通学院,武汉430063 [3]中国水产科学研究院东海水产研究所,上海200090

出　　处：《船舶力学》2020年第6期808-818,共11页Journal of Ship Mechanics

基　　金：中国水产科学研究院基本科研业务费资助(2017HY-ZD0604)。

摘　　要：铜合金网状结构因为具有优越的防腐防锈性能,在水产养殖业中倍受欢迎。由于铜合金编织过程中产生的折痕、拐角等明显的初始缺陷,极大地影响了铜合金网的疲劳性能。本文介绍了铜合金网的疲劳强度和老化性能的原始结果。考虑到腐蚀环境和老化效应,对不同老化条件下铜合金线材的金相组织和最大腐蚀深度进行了系统的测量和比较。经过一系列的老化和疲劳试验,得出结论:铜合金材料具有较好的耐腐蚀性和耐老化性。然而,实际铜合金网的疲劳强度相对较低(106次循环时FAT=28.3 MPa),这为铜合金网状结构的抗疲劳设计提供了参考。Because of the superior anticorrosion and antirust performance,copper alloy aqua⁃culture netting structure is very popular in aquaculture industry.However,due to obvious ini⁃tial defects such as creases and corners caused by copper alloy weaving,the fatigue perfor⁃mance of copper alloy net is greatly affected.This paper presents original results for fatigue strength and ageing performance of netting structure.Considering the corrosive environment and ageing effects,metallographic structure and the maximum corrosion depths of copper al⁃loy wire under different ageing conditions were measured and compared systematically.After a series of tests on aging and fatigue,it is concluded that the copper alloy material shows a better resistance against corrosion and aging while the fatigue strength of actual copper alloy netting structure is relatively low(FAT 28.3 MPa,at 106 cycles),which provides a reference for anti-fatigue design of copper alloy netting structure.

关 键 词：铜合金网 P-S-N曲线 疲劳试验 老化试验 疲劳强度 

分 类 号：U663.2[交通运输工程—船舶及航道工程]