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2 results on '"Xiangchao Feng"'

1. Numerical Analysis of Space Deployable Structure Based on Shape Memory Polymers

Author

Zepeng He, Yang Shi, Xiangchao Feng, Zhen Li, Yan Zhang, Chunai Dai, Pengfei Wang, and Liangyu Zhao

Subjects
shape memory polymers, finite element method, time–temperature equivalence principle, shape memory characteristics, space structure, Mechanical engineering and machinery, TJ1-1570
Abstract

Shape memory polymers (SMPs) have been applied in aerospace engineering as deployable space structures. In this work, the coupled finite element method (FEM) was established based on the generalized Maxwell model and the time–temperature equivalence principle (TTEP). The thermodynamic behavior and shape memory effects of a single-arm deployment structure (F-DS) and four-arm deployment structure (F-DS) based on SMPs were analyzed using the coupled FEM. Good consistency was obtained between the experimental data and simulation data for the tensile and S-DS recovery forces, verifying that the coupled FEM can accurately and reliably describe the thermodynamic behavior and shape memory effects of the SMP structure. The step-by-step driving structure is suitable for use as a large-scale deployment structure in space. This coupled FEM provides a new direction for future research on epoxy SMPs.

Published
2021
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2. Numerical Analysis of Space Deployable Structure Based on Shape Memory Polymers

Author

Xiangchao Feng, Shi Yang, Zhao Liangyu, He Zepeng, Zhang Yan, Pengfei Wang, Chunai Dai, and Li Zhen

Subjects
Work (thermodynamics), Computer science, finite element method, Mechanical engineering, 02 engineering and technology, 010402 general chemistry, Space (mathematics), 01 natural sciences, Article, space structure, TJ1-1570, Mechanical engineering and machinery, Electrical and Electronic Engineering, time–temperature equivalence principle, Generalized Maxwell model, Mechanical Engineering, Numerical analysis, shape memory polymers, Shape-memory alloy, 021001 nanoscience & nanotechnology, Finite element method, 0104 chemical sciences, Shape-memory polymer, Control and Systems Engineering, shape memory characteristics, 0210 nano-technology, Deployable structure
Abstract

Shape memory polymers (SMPs) have been applied in aerospace engineering as deployable space structures. In this work, the coupled finite element method (FEM) was established based on the generalized Maxwell model and the time–temperature equivalence principle (TTEP). The thermodynamic behavior and shape memory effects of a single-arm deployment structure (F-DS) and four-arm deployment structure (F-DS) based on SMPs were analyzed using the coupled FEM. Good consistency was obtained between the experimental data and simulation data for the tensile and S-DS recovery forces, verifying that the coupled FEM can accurately and reliably describe the thermodynamic behavior and shape memory effects of the SMP structure. The step-by-step driving structure is suitable for use as a large-scale deployment structure in space. This coupled FEM provides a new direction for future research on epoxy SMPs.

Published
2021

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