Damage mitigation using shape memory alloy based smart structures against extreme loading

使用基于形状记忆合金的智能结构来抵抗极端负载，减轻损坏

• 批准号: 386411-2010
• 负责人: Alam, Shahria
• 金额: $ 1.53万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2010
• 资助国家: 加拿大
• 起止时间: 2010-01-01 至 2011-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=463780
• 关键词: Damage; mitigation; using; shape; memory

Natural (earthquakes, hurricanes) and/or manmade disasters (terrorist attacks, vehicular collisions) pose a serious threat to Canadian infrastructure. Collapse or closure of an important structure has a severe impact on the economy of the region and/or country. Recognizing this fact, the Canadian Government plans to spend nearly $4 billion on infrastructure rehabilitation over the next 2 years. There are different techniques for damage mitigation of structures. In most cases significant damage to structures is unavoidable from a large scale catastrophe and the structures often require major rehabilitation or replacement, which is a costly undertaking. The challenge is to design and build intelligent structures that will recover from its damage after an extreme load event and thus, substantially reduce problems associated with infrastructure management, and ensure public safety. Super-Elastic (SE) Shape Memory Alloy (SMA) is a special material which can provide structures with smart self-fixing capabilities to regain their original positions after large inelastic deformation.

自然灾害(地震、飓风)和/或人为灾害(恐怖袭击、车辆相撞)对加拿大的基础设施构成严重威胁。一个重要结构的倒塌或关闭会对该区域和/或国家的经济造成严重影响。认识到这一事实，加拿大政府计划在未来两年内花费近40亿美元用于基础设施修复。有不同的技术可以减轻结构的损伤。在大多数情况下，大规模灾难不可避免地会对结构造成重大破坏，结构往往需要进行重大修复或更换，这是一项代价高昂的工作。挑战是设计和建造智能结构，这些结构在极端负载事件后将从损坏中恢复，从而大幅减少与基础设施管理相关的问题，并确保公共安全。超弹性形状记忆合金(SMA)是一种特殊的材料，它可以使结构在大的非弹性变形后具有智能的自固定能力，使其恢复到原来的位置。