SHEARING TESTS APPLIED TO PANTOGRAPHIC STRUCTURES

Gregor Ganzosch (1) , Francesco Dell'Isola (2) , Emilio Turco (3) , Tomasz Lekszycki (4) , Wolfgang H. Müller (1)

1 TU Berlin, Chair of Continuum Mechanics and Materials Theory
2 Dipartimento di Ingegneria Strutturale e Geotecnica
3 UNISS, Dipartimento di Architettura, Design e Urbanistica
4 PAN Warszawa, Instytut Podstawowych Problemów Technik

With the advancements in 3D printing technology, rapid manufacturing of fabric materials with complex geometries became possible. By exploiting this technique, different materials with different structures have been developed in the recent past with the objective of making generalized continuum theories useful for technological applications. So-called pantographic structures are introduced: Inextensible fibers are printed in two arrays orthogonal to each other in parallel planes. These superimposed planes are inter-connected by elastic cylinders. Five differently-sized samples were subjected to shear-like loading while their deformation response was analyzed. Results show that deformation behavior is strong non-linear for all samples. Furthermore, all samples were capable to resist considerable external shear loads without leading to complete failure of the whole structure. This extraordinary behavior makes these structures attractive to serve as an extremely tough metamaterial.

Mots clés: Pantograpghic structures; shearing tests; generalized continuum theories.

Domaines: Mécanique [physics]

Gregor Ganzosch, Francesco Dell'Isola, Emilio Turco, Tomasz Lekszycki, Wolfgang H. Müller. SHEARING TESTS APPLIED TO PANTOGRAPHIC STRUCTURES. Acta Polytechnica CTU Proceedings, 2017, 7, pp.1-6. ⟨hal-01588413⟩