Resistive Deployment of Inflatable Structures Using Velcro

Autor:	Moktar Salama, Michael Lou, Houfei Fang
Rok vydání:	2002
Předmět:	Engineering Finite volume method business.industry Delamination Aerospace Engineering Strain energy density function Structural engineering Dissipation Finite element method Inflatable Space and Planetary Science Software deployment Bending stiffness business
Zdroj:	Journal of Spacecraft and Rockets. 39:711-716
ISSN:	1533-6794 0022-4650
DOI:	10.2514/2.3869
Popis:	To explain the dynamics of Velcro-controlled deployment of inflatable structures, we first examine various mechanisms involved in Velcro delamination. Unlike adhesive joints, it is found that Velcro has unique characteristics, wherein multiple load-carrying mechanisms are sequentially engaged to resist separation. Both tests and analysis suggest that a strength criterion based on the strain energy density dissipated during separation can best capture these mechanisms. A finite element model of Velcro interfaces is also used, along with a finite volume inflation model, to simulate the deployment behavior of Velcro-controlled inflatable structures. Although it is essential to determine whether a selected type of Velcro will deploy, it is of equal interest to the designer to assess the rate of deployment. To this end, simulation results show that, consistent with the proposed strength criterion, the average rate of energy dissipation at the Velcro interface also seems to be the most sensitive measure of the rate of Velcro-controlled deployment.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a3236ab5ab41d3bfa1a80e02f06b932f https://doi.org/10.2514/2.3869 Zobrazit plný text záznamu