Open Access
ARTICLE
Numerical and Theoretical Studies of the Buckling of Shape Memory Tape Spring
Zhengfa Li1, Weibin Song, Zhengdao Wang
1 Department of Mechanics, School of Civil Engineering, Beijing Jiao-Tong University, Beijing,
100044, China
Structural Longevity 2011, 6(3), 133-143. https://doi.org/10.3970/sl.2011.006.133
Abstract
By using the high froze/recovery strains of shape memory polymers to
meet the requirements of deployable space structures, the folding behavior of shape
memory tape spring consisting of shape memory polymer and metal spring was analyzed. Firstly, numerical simulations were performed on the buckling modes and
affecting factors under the equal- and opposite-sense bends. The results show that
the folding deformations of such structure in the two cases are completely different. The equal-sense bending leads to the structure buckled abruptly, but gradual
torsion buckling is received in the case of opposite-sense bending. The critical
bending moments have big difference in the two cases, and the structure response
is strongly dependant on the geometric parameters. Secondly, the critical buckling
solution under pure bending was derived, and the result confirms to be agreeable
with the finite element calculation.
Keywords
Cite This Article
Li, Z., Song, W., Wang, Z. (2011). Numerical and Theoretical Studies of the Buckling of Shape Memory Tape Spring.
Structural Longevity, 6(3), 133–143. https://doi.org/10.3970/sl.2011.006.133