Wrinkle-crease interaction behavior simulation of a rectangular membrane under shearing

Abstract

Wrinkling analysis of a rectangular membrane with a single crease under shearing is performed to understand the wrinkle-crease interaction behaviors. The crease is considered by introducing the residual stresses from creasing and the effective modulus into the baseline configuration with assumed circular cross-sectional crease geometry. The wrinkling analysis of the creased membrane is then performed by using the direct perturb-force (DP) simulation technique which is based on our modified displacement components (MDC) method. Results reveal that the crease may influence the stress transfer path in the membrane and further change the wrinkling direction. The crease appears to improve the bending stiffness of the membrane which has an effective resistance on the wrinkling evolution. The effects of the crease orientation on wrinkle-crease interaction are studied toward the end of this paper. The results show that the wrinkling amplitude, wavelength, and direction increase as the crease orientation increases, and the wrinkling number decreases with the increasing crease orientation.

Experiment and evaluation of wrinkling strain in a corner tensioned square membrane

“…This experiment progress is simulated by ANSYS Code based on modified displacement component method and combined with a direct perturbed-force technology [21,22]. The finite element model is shown in Fig.…”

Deployment Simulation of Miura-Origami Membrane Structures

“…Moreover, they also studied the effects of the membrane thickness [23] and the crease orientation [24], deployment angle and load ratio [25]. Wang et al [26] investigated the shear performance of a rectangular membrane considering the wrinkling and creases. So far most of the previous studies only focus on the membranes with single or simple creases.…”

“…Papa and Pellegrino [27] studied the mechanics of a systematically creased square membrane with the Miura-ori pattern. However, to use the thin shell method for creased membranes, the initial imperfections should be quantitatively introduced to the numerical model [26]. In addition, to obtain good deformation results, the refined element meshes lead to a large number of shell elements.…”