Mechanical Behavior of High Temperature Hybrid Carbon Fiber/Titanium Laminates

Christos G.; Papakonstantinou; Konstantinos Katakalos

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Mechanical Behavior of High Temperature Hybrid Carbon Fiber/Titanium Laminates

机译：高温混合碳纤维/钛层压板的力学行为

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摘要

The aim of this paper was to investigate the tensile and flexural properties of hybrid laminates made with titanium sheets and high modulus carbon fiber composites. Grade II titanium was used, which exhibits great high-temperature performance and creep resistance, low weight, and high strength. An inorganic fireproof matrix, known as geopoly-mer, was used to fabricate the high modulus carbon fiber composites. Previous studies have shown that these composites are strong, durable, lightweight, and can exhibit excellent performance up to 400℃. In the present study, a number of specimens were tested in uniaxial tension and four-point bending after exposure at elevated temperatures. The results indicate that the addition of carbon fibers can reduce the weight and increase the stiffness of the pure titanium. Moreover, the hybrid laminates are stronger and stiffer than the sum of the individual strengths and stiffnesses of the parent materials. An important finding is that the interlaminar bond is strong, and as a result no delamination failures were observed.

机译：本文的目的是研究由钛板和高模量碳纤维复合材料制成的混杂层压材料的拉伸和弯曲性能。使用了II级钛，该钛具有出色的高温性能和抗蠕变性，重量轻且强度高。使用无机防火基质（称为地质聚合物）来制造高模量碳纤维复合材料。以前的研究表明，这些复合材料坚固，耐用，轻便，在高达400℃的温度下仍具有出色的性能。在本研究中，在高温下暴露后，对许多样品进行了单轴拉伸和四点弯曲测试。结果表明，碳纤维的添加可以减少纯钛的重量并增加其刚度。而且，混合层压材料比母体材料的单独强度和刚度之和更强和更硬。一个重要的发现是层间键很强，因此没有观察到分层失败。

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来源
《Journal of engineering materials and technology》 |2009年第2期|69-78|共10页
作者
Christos G.; Papakonstantinou; Konstantinos Katakalos;
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作者单位

Department of Civil and Environmental Engineering,University of Massachusetts Dartmouth,285 Old Westport Road,North Dartmouth, MA 02747;

Department of Civil and Environmental Engineering,University of Massachusetts Dartmouth,285 Old Westport Road,North Dartmouth, MA 02747;

Department of Civil and Environmental Engineering,University of Massachusetts Dartmouth,285 Old Westport Road,North Dartmouth, MA 02747;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
hybrid composites; layered structures; flexural properties; tensile properties; thermomechanical properties; titanium;

机译：混合复合材料;分层结构;弯曲性能;拉伸性能;热机械性能;钛;

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机译：研究了高温暴露后各种混凝土高温曝光机械性能各种混凝土的机械性能。考虑到高层建筑中垂直元件的抗压强度要求，测试了35,80,100和150MPa各种设计强度的混凝土试样。特别是，在这项研究中，掺入钢纤维对耐火性的影响。实验结果表明，耐火性取决于设计强度和钢纤维含量。在暴露于100-400°C的温度时，80-100MPa的设计强度为35MPa或高性能混凝土（HPC）的正常强度混凝土（NSC）不会击落。然而，当HPC含有1体积的钢纤维的百分比时，爆炸性剥落发生在300℃。超高性能混凝土（UHPC）的设计强度为150 MPa和1.5 Vol。钢纤维的百分比也显示出300℃的剧烈剥落。本研究中发现的实验结果可以有助于更好地了解在火灾中的HPC和UHPC的行为以及钢纤维对耐火性的作用。

Mechanical Behavior of High Temperature Hybrid Carbon Fiber/Titanium Laminates

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