Modeling and Simulation of Nonlinear Ultrasonic Evaluation for Steel Damage by Finite Element Analysis

Authors

Yanyan Liu, Shanghai Key Laboratory of Power Station Automation Technology, School of Mechatronics Engineering and Automation,Shanghai University, Shanghai 200072, China;
Shiwei Ma, Shanghai Key Laboratory of Power Station Automation Technology, School of Mechatronics Engineering and Automation,Shanghai University, Shanghai 200072, China;

Abstract

Abstract: A method was developed to theoretically determine the creep damage of steel by using the nonlinear ultrasonic technique. A two-dimensional finite element model was built to simulate the creep damage of the material and the ultrasonic wave propagation through the degraded material. The nonlinear phenomenon of wave distortion was due to the microstructural changes of the material, which caused distortion that accumulated with propagation distance. Based on the model, the nonlinear parameter of the second-harmonic wave increased with the increase of temperature, which gave some guidelines for the evaluation of the early stage of the degradation of mechanical properties and micro-damage of the materials. The measured nonlinearity of the P91 steel samples confirms the validity of the model.

Recommended Citation

Liu, Yanyan and Ma, Shiwei (2020) "Modeling and Simulation of Nonlinear Ultrasonic Evaluation for Steel Damage by Finite Element Analysis," Journal of System Simulation: Vol. 27: Iss. 9, Article 6.
Available at: https://dc-china-simulation.researchcommons.org/journal/vol27/iss9/6

First Page

1967

Revised Date

2015-07-22

DOI Link

https://doi.org/

Last Page

1975

CLC

TP391.9

Recommended Citation

Liu Yanyan, Ma Shiwei. Modeling and Simulation of Nonlinear Ultrasonic Evaluation for Steel Damage by Finite Element Analysis[J]. Journal of System Simulation, 2015, 27(9): 1967-1975.