Signal Simulation and Experimental Research on Acoustic Emission using LS-DYNA
To calculate sound wave velocity, we performed the Hsu-Nielsen lead break experiment using the ANSYS/LS-DYNA finite element software. First, we identified the key problems in the finite element analysis, such as selecting the exciting force, dividing the grid density, and setting the calculation s...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Eastern Macedonia and Thrace Institute of Technology
2015-09-01
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| Series: | Journal of Engineering Science and Technology Review |
| Subjects: | |
| Online Access: | http://www.jestr.org/downloads/Volume8Issue3/fulltext83202015.pdf |
| Summary: | To calculate sound wave velocity, we performed the Hsu-Nielsen lead break experiment using the ANSYS/LS-DYNA
finite element software. First, we identified the key problems in the finite element analysis, such as selecting the exciting
force, dividing the grid density, and setting the calculation steps. Second, we established the finite element model of the
sound wave transmission in a plate under the lead break simulation. Results revealed not only the transmission
characteristics of the sound wave but also the simulation and calculation of the transmission velocity of the longitudinal
and transverse waves through the time travel curve of the vibration velocity of the sound wave at various nodes. Finally,
the Hsu-Nielsen lead break experiment was implemented. The results of the theoretical calculation and simulation
analysis were consistent with the experimental results, thus demonstrating that the research method using the
ANSYS/LS-DYNA software to simulate sound wave transmissions in acoustic emission experiments is feasible and
effective. |
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| ISSN: | 1791-2377 1791-2377 |