胶粘剂性能对复合材料加固损伤钢板性能影响研究

发布时间：2018-01-12 20:40

本文关键词：胶粘剂性能对复合材料加固损伤钢板性能影响研究　出处：《玻璃钢/复合材料》2017年08期 　论文类型：期刊论文

【摘要】：以海洋工程中含裂纹钢板为研究对象,通过虚拟裂纹闭合法建立有限元仿真模型,模拟塑性钢板加固前后的承载能力,并分析胶粘剂的剪切强度和延伸率对加固性能的影响。设计相应的加固试验模型,对比经过交变湿热、太阳辐射老化、盐雾等海洋环境试验前后的结构加固性能,并选用适合海洋环境的胶粘剂进行加固方案的优化。研究表明,改变胶粘剂的性能参数对加固结构的屈服点影响不大,但对复合材料加固的极限承载能力影响较大。海洋环境因素可导致胶粘剂的性能下降,选用适合海洋环境的优异胶粘剂后可提高加固的可靠性和耐久性。
[Abstract]:In marine engineering in cracked steel plates as the research object, through the virtual crack closure method to establish a finite element simulation model, simulation of bearing capacity of the plastic plate before and after reinforcement, and analysis of shear strength of adhesives and elongation properties. The influence of reinforcement reinforcement test model design, by comparison of alternating solar radiation, aging, reinforcement the performance of the structure before and after salt fog test of the marine environment, optimization and selection of suitable for marine environment adhesive reinforcement scheme. The results show that the change of performance parameters of adhesive reinforcement structure of the yield point is not affected, but the limit of the composite reinforcement bearing capacity influence. Marine environmental factors can lead to decline in the performance of the adhesive, selection suitable for marine environment excellent adhesive can improve the reliability and durability of reinforcement.

【作者单位】：中国船舶科学研究中心船舶振动噪声重点实验室;江苏省绿色船舶技术重点实验室;
【基金】：高技术船舶科研项目(工信部联装[2016]22号)
【分类号】：TB33
【正文快照】： 1引言南海岛礁中型浮式结构物具备人员居住、船舶停靠、物资储存等多种功能,满足南海岛礁经济发展的需求。海洋浮式结构物所处的环境条件十分复杂恶劣,当受到制造、施工、自然环境、波浪载荷等多种因素的影响时,钢结构容易产生损伤[1]。碳纤维增强复合材料(Carbon Fiber Reinf

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