Material Lifeing Using Nonlinear Ultrasound

使用非线性超声波进行物质生活

• 批准号: EP/I019286/1
• 负责人: Anthony Croxford
• 金额: $ 12.12万
• 依托单位: University of Bristol
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2011
• 资助国家: 英国
• 起止时间: 2011 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FI019286%2F1
• 关键词: Material; Lifeing; Using; Nonlinear; Ultrasound

This project is concerned with the development of ultrasonic techniques for the detection of fatigue and creep damage in materials. This development will allow the detection of damage at earlier stages in power plants and aero engines, resulting in the ability to operate these systems safely for much greater periods. The noncollinear interaction of ultrasound with material nonlinearity will be developed and employed due to its great potential for practical applications. The development and comparison of nonlinear inspection techniques, through modelling and experiment, will provide academic and industrial users with a clear, unambiguous description of the relative performance levels and usefulness of nonlinear ultrasonic inspection techniques, helping future users make the best decisions as to which approach to apply. Finally the testing of this approach on real world samples will confirm its practical applicability. The result will be an understanding of how nonlinear ultrasonic techniques can be used to detect previously undetectable damage in specimens and predict the remaining life in components.

该项目涉及开发超声波技术，以检测材料中的疲劳和蠕变损伤。这种开发将使在发电厂和航空发动机的早期阶段发现损坏，从而导致能够在更长的时间内安全操作这些系统。超声与物质非线性的非共线相互作用将由于其实践应用的巨大潜力而​​开发和使用。通过建模和实验，非线性检查技术的开发和比较将为学术和工业用户提供清晰，明确的描述非线性超声波检查技术的相对性能水平和实用性，从而帮助未来的用户对应用哪种方法做出最佳决策。最后，对这种方法对现实世界样本的测试将确认其实际适用性。结果将是了解如何使用非线性超声技术来检测样品中无法检测到的损害并预测组件中的剩余寿命。

项目成果

Measuring bulk material nonlinearity using harmonic generation

• DOI: 10.1016/j.ndteint.2012.02.009
• 发表时间: 2012-06
• 期刊: Ndt & E International
• 影响因子: 4.2
• 作者: Siming Liu;S. Best;S. Neild;A. Croxford;Zhenggan Zhou

Nonlinear ultrasonic phased array imaging.

• DOI: 10.1103/physrevlett.113.144301
• 发表时间: 2014-10
• 期刊: Physical review letters
• 影响因子: 8.6
• 作者: J. Potter;A. Croxford;P. Wilcox

Numerical and experimental study of the nonlinear interaction between a shear wave and a frictional interface.

剪切波与摩擦界面之间非线性相互作用的数值和实验研究。

• DOI: 10.1121/1.4868402
• 发表时间: 2014
• 期刊: The Journal of the Acoustical Society of America
• 作者: Blanloeuil P

Non-Collinear Inspection for the Detection of Damage Precursors

用于检测损坏前兆的非共线检查

• 发表时间: 2013
• 期刊: Proceedings of International Workshop on Structural Health Monitoring 2013
• 作者: Croxford A J

Practical approaches to single sided nonlinear measurements

单侧非线性测量的实用方法

• DOI: 10.1063/1.4716241
• 发表时间: 2012
• 作者: Croxford A