Development of reentrant hexatruss structures to apply to architecture

Elipe, Ma Dolores Álvarez; Díaz, Jesús Anaya

doi:10.7764/rdlc.17.2.209

Cited by 2 publications

(2 citation statements)

References 3 publications

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“…So, it is important to study about other attributes of some auxetic geometries, realizing a comparative and systematic analysis. It would be interesting to generate novel deployable structures applicable in architecture [12] .…”

Section: Introductionmentioning

confidence: 99%

“…In this research a comparison of CAD separate and 2D geometries of stellated reentrant auxetic patterns is shown. The methodology of the realized research pay attention on develop some stellated reentrant auxetic patterns by means of CAD of three unity geometries and three 2D models, from the knowledge acquires in anterior investigations [13] , patents [14][15][16] and conferences [12,13] , and own researches.…”

Section: Introductionmentioning

confidence: 99%

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Geometric Study of Two-Dimension Stellated Reentrant Auxetic Structures to Transformable Architecture

Elipe¹

2023

j. of archit. environ. & struct. eng. res.

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Transformable architecture is totally linked to the study and knowledge of geometry. There are some materials in nature, whose geometric invariants establish equivalent structural behavior regarding the scalar transformations, developing different spatial typologies according to dimensional variation. Auxetic materials are characterized by their negative Poisson’s ratio. The can change their geometric configuration from a line to a surface, and from a surface to a volume or spatial framework. This paper is based on establishing and comparing those stellated reentrant auxetic geometries to be able to build new spaces defined by their capacity to architectural transformation, studying analytically geometric properties of stellated reentrant auxetic structures that, from the molecular to the macroscopic level, can be part of the architecture construction. In this investigation a comparative study by means of CAD of stellated reentrant auxetic patterns has been realized. A Computer Aided Design study of stellated reentrant auxetic structures will be realized to use them to architecture. The geometric behavior of the different stellated reentrant auxetic patterns is analyzed from the developed study to generate a systematic comparison, evaluating properties of these forms, such as their maximum achievable area reductions in relation with the total length of bars of the structure, in order to obtain a growth factor.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Geometric Study of Two-Dimension Stellated Reentrant Auxetic Structures to Transformable Architecture

Elipe¹

2023

j. of archit. environ. & struct. eng. res.

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On the application of additive manufacturing methods for auxetic structures: a review

2021

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Auxetic structures are a special class of structural components that exhibit a negative Poisson's ratio (NPR) because of their constituent materials, internal microstructure, or structural geometry. To realize such structures, specialized manufacturing processes are required to achieve a dimensional accuracy, reduction of material wastage, and a quicker fabrication. Hence, additive manufacturing (AM) techniques play a pivotal role in this context. AM is a layer-wise manufacturing process and builds the structure as per the designed geometry with appreciable precision and accuracy. Hence, it is extremely beneficial to fabricate auxetic structures using AM, which is otherwise a tedious and expensive task. In this study, a detailed discussion of the various AM techniques used in the fabrication of auxetic structures is presented. The advancements and advantages put forward by the AM domain have offered a plethora of opportunities for the fabrication and development of unconventional structures. Therefore, the authors have attempted to provide a meaningful encapsulation and a detailed discussion of the most recent of such advancements pertaining to auxetic structures. The article opens with a brief history of the growth of auxetic materials and later auxetic structures. Subsequently, discussions centering on the different AM techniques employed for the realization of auxetic structures are conducted. The basic principle, advantages, and disadvantages of these processes are discussed to provide an in-depth understanding of the current level of research. Furthermore, the performance of some of the prominent auxetic structures realized through these methods is discussed to compare their benefits and shortcomings. In addition, the influences of geometric and process parameters on such structures are evaluated through a comprehensive review to assess their feasibility for the latermentioned applications. Finally, valuable insights into the applications, limitations, and prospects of AM for auxetic structures are provided to enable the readers to gauge the vitality of such manufacturing as a production method.

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Development of reentrant hexatruss structures to apply to architecture

Cited by 2 publications

References 3 publications

Geometric Study of Two-Dimension Stellated Reentrant Auxetic Structures to Transformable Architecture

Geometric Study of Two-Dimension Stellated Reentrant Auxetic Structures to Transformable Architecture

On the application of additive manufacturing methods for auxetic structures: a review

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