Documents

Bistable deployable scissor structures can be designed to be transportable and can easily be transformed between two stable states, the compact and the deployed state, offering a huge volume expansion. In the deployed state they instantaneously reach structural stability as a consequence of an intended snap-through behaviour during transformation, generated by designed geometric incompatibilities. The design of such structures is ideally based on the duality of taking into account both their nonlinear transformation phase, as well as their service state in the deployed configuration, with opposing requirements. During transformation the peak force - and snap-through magnitude - needs to be minimized to obtain an easily transformable structure, while in the deployed state the stiffness of the structure should be high enough to allow sustaining gravity loads - requiring a high snap-through magnitude. In this contribution the computational design based on these opposing trends is formulated as a multi-objective optimisation approach. The feasibility of the proposed computational optimisation approach is demonstrated on the example of a bistable module.
Original languageEnglish
Title of host publicationProceedings of the IASS Annual Symposium 2019 – Structural Membranes 2019
Subtitle of host publicationForm and Force
EditorsC. Lázaro, K.-U. Bletzinger, E. Oñate
Place of PublicationBarcelona, Spain
Number of pages7
Publication statusPublished - Oct 2019
EventIASS symposium 2019: Form and Force - Barcelona, Spain
Duration: 7 Oct 201910 Oct 2019

Conference

ConferenceIASS symposium 2019
CountrySpain
CityBarcelona
Period7/10/1910/10/19

    Research areas

  • structural engineering, non-linear computational mechanics, deployable structures, scissor structures, bistable structures, multi-objective optimisation

ID: 47007234