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首页> 外文期刊>Journal of Earthquake Engineering >SHAPE MEMORY ALLOYS IN SEISMIC RESISTANT DESIGN AND RETROFIT: A CRITICAL REVIEW OF THEIR POTENTIAL AND LIMITATIONS
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SHAPE MEMORY ALLOYS IN SEISMIC RESISTANT DESIGN AND RETROFIT: A CRITICAL REVIEW OF THEIR POTENTIAL AND LIMITATIONS

机译：抗震设计和改进中的形状记忆合金：对它们的潜力和局限性的评论

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摘要

Shape memory alloys (SMAs) are a class of materials that have unique properties, including Young's modulus-temperature relations, shape memory effects, superelastic effects, and high damping characteristics. These unique properties, which have led to numerous applications in the biomedical and aerospace industries, are currently being evaluated for applications in the area of seismic resistant design and retrofit. This paper provides a critical review of the state-of-the-art in the use of shape memory alloys for applications in seismic resistant design. The paper reviews the general characteristics of shape memory alloys and highlights the factors affecting their properties. A review of current studies show that the superelastic and high-damping characteristics of SMAs result in applications in bridges and buildings that show significant promise. The barriers to the expanded use of SMAs include the high cost, lack of clear understanding of thermo-mechanical processing, dependency of properties on temperature, and difficulty in machining.
机译：形状记忆合金（SMA）是一类具有独特性能的材料，包括杨氏模量-温度关系，形状记忆效应，超弹性效应和高阻尼特性。这些独特的性能已导致在生物医学和航空航天领域的大量应用，目前正在评估其在抗震设计和改造领域的应用。本文对形状记忆合金在抗震设计中的应用进行了最新的评论。本文回顾了形状记忆合金的一般特性，并重点介绍了影响其性能的因素。对当前研究的回顾表明，SMA的超弹性和高阻尼特性使其在桥梁和建筑中的应用前景广阔。 SMA广泛使用的障碍包括高成本，对热机械加工缺乏清晰的了解，性能对温度的依赖性以及加工难度。

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