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10 May 2024 Imaging the microstructure and elasticity of aerospace materials
Richard J. Smith, Wenqi Li, Rikesh Patel, Paul Dryburgh, Matt Clark
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Proceedings Volume PC12950, Nondestructive Characterization and Monitoring of Advanced Materials, Aerospace, Civil Infrastructure, and Transportation XVIII; PC1295008 (2024) https://doi.org/10.1117/12.3012652
Event: SPIE Smart Structures + Nondestructive Evaluation, 2024, Long Beach, California, United States
Abstract
Measuring the single-crystal elastic constants of polycrystalline materials has important engineering applications. This information is critical for predicting the macroscopic mechanical behaviour of materials and designing new materials with tailored mechanical properties. A new method for measuring the single-crystal elastic stiffness matrix of polycrystalline materials is presented. It builds on the capabilities of SRAS, a laser ultrasound technique for measuring the surface acoustic wave (SAW) velocity of a material. Combining measurements from multiple acoustic propagation directions with the elastic constants from literature, it is possible to determine the grains’ orientation. This paper details recent work for measuring the single-crystal elastic constants of polycrystalline materials combining SRAS with an inverse solver to extract both the orientation and elasticity from the SAW measurements.
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Richard J. Smith, Wenqi Li, Rikesh Patel, Paul Dryburgh, and Matt Clark "Imaging the microstructure and elasticity of aerospace materials", Proc. SPIE PC12950, Nondestructive Characterization and Monitoring of Advanced Materials, Aerospace, Civil Infrastructure, and Transportation XVIII, PC1295008 (10 May 2024); https://doi.org/10.1117/12.3012652
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KEYWORDS
Elasticity
Aerospace engineering
Materials properties
Engineering
Equipment
Heat treatments
Matrices
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