Dynamic characteristics of three-dimensional complex structure based on coupling algorithm

CHU Wenhua; ZHU Dongjun; LIANG Deli; FENG Feng; WEI Sijun

doi:10.11883/bzycj-2016-0283

Volume 38 Issue 4

May 2018

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Article Navigation > Explosion And Shock Waves > 2018 > 38(4): 725-734

CHU Wenhua, ZHU Dongjun, LIANG Deli, FENG Feng, WEI Sijun. Dynamic characteristics of three-dimensional complex structure based on coupling algorithm[J]. Explosion And Shock Waves, 2018, 38(4): 725-734. doi: 10.11883/bzycj-2016-0283

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CHU Wenhua, ZHU Dongjun, LIANG Deli, FENG Feng, WEI Sijun. Dynamic characteristics of three-dimensional complex structure based on coupling algorithm[J]. Explosion And Shock Waves, 2018, 38(4): 725-734. doi: 10.11883/bzycj-2016-0283

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Dynamic characteristics of three-dimensional complex structure based on coupling algorithm

doi: 10.11883/bzycj-2016-0283

CHU Wenhua^{1, 2, 3
,},
ZHU Dongjun⁴,
LIANG Deli⁵,
FENG Feng⁶,
WEI Sijun⁴

1.
College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China
2.
National Engineering Research Center for Oceanic Fisheries, Shanghai 201306, China
3.
Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources, Ministry of Education, Shanghai 201306, China
4.
TRW Automotive Research & Development Shanghai Co. Ltd., Shanghai 200233, China
5.
Science and Technology on Space Physics Laboratory, Beijing 100076, China
6.
Shanghai Waigaoqiao Shipbuilding & Offshore Co. Ltd., Shanghai 201306, China

Received Date: 2016-09-18
Rev Recd Date: 2017-09-06
Publish Date: 2018-07-25

Abstract

Abstract

The coupled smoothed particle hydrodynamics-finite element method (SPH-FEM) has been gradually introduced in some researches about the impact dynamics due to its combined advantages of the two algorithms, but the early research focused mostly on simple structures of single material and the results obtained were not applicable in actual engineering. Based on the work previously done, we developed a coupled SPH-FEM method using a damage model of the composite, built a three-dimensional numerical model for the composite skin aircraft structure and studied its impact dynamic characteristics under explosion loading. The comparison of the numerical with experimental results verified the model and algorithm both as valid and accurate, thereby realizing the actual engineering application of the coupled SPH-FEM method. Furthermore, we also analyzed and summarized the dynamic response mechanism of the composite skin aircraft structure under shock loading. Our study can serve as references for the structural design and protection of the aerospace craft.
- coupling algorithm,
- composite material,
- complex structure,
- dynamic characteristics

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References(17)

References

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