2-D simulation of ultrasonic wave propagation in solid propellant using finite element method

2019 ◽  
Vol 2019.27 (0) ◽  
pp. 103
Author(s):  
Yu MAEHARA ◽  
Haruhiko TAKEDA ◽  
Takahiro SAITOH ◽  
Takuya TAKAHASHI ◽  
Akiyoshi SATOH ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Wave Propagation ◽  
Ultrasonic Wave ◽  
Solid Propellant ◽  
Ultrasonic Wave Propagation ◽  
Element Method

scholarly journals Investigation of Guided Wave Interaction with Discontinuities in the Axisymmetric Damped Waveguide

Proceedings ◽  
2020 ◽  
Vol 67 (1) ◽  
pp. 12
Author(s):  
Jothi Saravanan Thiyagarajan
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Wave Propagation ◽  
Ultrasonic Wave ◽  
Pitting Corrosion ◽  
Steel Wire ◽  
Wave Interaction ◽  
Center Frequency ◽  
Ultrasonic Wave Propagation ◽  
Element Method

Structural health monitoring and nondestructive evaluation techniques are utilized to monitor wire breakage, and one of the prominent methods is to practice guided ultrasonic wave propagation and acoustic emission (AE) monitoring. In this paper, the numerical modeling of wave scattering by a structural discontinuity (pitting corrosion) in axisymmetric high strength steel wire-viscoelastic damped waveguide medium is performed to analyze the wave interaction by inhomogeneity. The hybrid standard three-dimensional finite element method and semi-analytical finite element method for numerical analysis of guided ultrasonic wave propagation is presented. The narrow-band excitation force with a center frequency of 0.2 MHz-AE signal characteristics are used to understand the wave interaction of the pitting corrosion (damage) in steel wire.

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