4.5 Article

Visco-Elasto-Plastic Behavior of Creased Space Membrane

Journal

AIAA JOURNAL
Volume 60, Issue 8, Pages 4934-4942

Publisher

AMER INST AERONAUTICS ASTRONAUTICS
DOI: 10.2514/1.J060442

Keywords

-

Funding

  1. JSPS KAKENHI [18K13929]
  2. Grants-in-Aid for Scientific Research [18K13929] Funding Source: KAKEN

Ask authors/readers for more resources

This paper addresses the accurate prediction of the releasing and deploying behaviors of a creased space membrane. Experimental and finite element analysis results indicate that the opening angle of the crease increases with elapsed time after release due to stress relaxation. An analytical model is proposed to predict the releasing behavior, which shows good agreement with experimental results. Viscosity is considered important in predicting the releasing behavior of the space membrane.
This paper addresses the ways by which the releasing and deploying behaviors of a creased space membrane can be predicted accurately. Although existing studies have analyzed the released shape of a creased membrane by considering the elasto-plastic properties, the shape did not agree with the experimental results when the membrane was tightly creased. To examine the released shape of the membrane, creasing and releasing experiments are first conducted. The experimental results indicate that the opening angle of the crease increases with increasing elapsed time after the release due to stress relaxation. The stress relaxation behavior is predicted using finite element analysis (FEA) by considering the visco-elasto-plastic material properties. In addition, an analytical model of the releasing and deploying membrane has been proposed here. The results of the FEA and the analytical model indicate that the released angles are in good agreement with those in the experimental results. Thus, the effects of viscosity are considered important for predicting the releasing behavior of the space membrane.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.5
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available