Application of Strain-Rate-Dependent Material Models to Aero-Engine Honeycomb Casing Analysis

MENG Weihua; WANG Jianjun; MI Dong; WANG Wenjun; GUO Weiguo

doi:10.21656/1000-0887.390087

Volume 39 Issue 6

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Article Navigation > Applied Mathematics and Mechanics > 2018 > 39(6): 665-671

MENG Weihua, WANG Jianjun, MI Dong, WANG Wenjun, GUO Weiguo. Application of Strain-Rate-Dependent Material Models to Aero-Engine Honeycomb Casing Analysis[J]. Applied Mathematics and Mechanics, 2018, 39(6): 665-671. doi: 10.21656/1000-0887.390087

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Application of Strain-Rate-Dependent Material Models to Aero-Engine Honeycomb Casing Analysis

doi: 10.21656/1000-0887.390087

¹AECC Hunan Aviation Powerplant Research Institute, Zhuzhou, Hunan 412002, P.R.China;²School of Astronautics, Northwestern Polytechnical University, Xi’an 710072, P.R.China;³School of Aeronautics, Northwestern Polytechnical University, Xi’an 710072, P.R.China

Received Date: 2017-12-18
Rev Recd Date: 2018-05-12
Publish Date: 2018-06-15

Abstract

Abstract

For typical honeycomb materials used in turbine casings of aero-engines to prevent blades from scraping the casing, 2 commonly used material models, the Johnson-Cook model and the honeycomb equivalent model, and the relevant calibration methods were discussed. Then the 2 models were implemented in the simulation of a honeycomb impact test, and the simulation results were compared with the test results. It is shown that, through appropriate parameter calibrations and reasonable simplifications, the Johnson-Cook model provides satisfying results, in which the damage prediction is in good agreement with the test observation. Since the Johnson-Cook model is relatively easier to be implemented with enough prediction accuracy, it is recommended for blade-honeycomb scraping analysis of aero-engines.
- aero-engine,
- honeycomb material,
- strain rate dependency,
- Johnson-Cook model

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References(9)

References

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