Optimization of manufacturing parameters and tensile specimen geometry for fused deposition modeling (FDM) 3D-printed PETG

A Özen, D Auhl, C Völlmecke, J Kiendl, BE Abali - Materials, 2021 - mdpi.com
Additive manufacturing provides high design flexibility, but its use is restricted by limited
mechanical properties compared to conventional production methods. As technology is still …

[HTML][HTML] A study about the impact of the topological arrangement of fibers on fiber-reinforced composites: some guidelines aiming at the development of new ultra-stiff …

I Giorgio, A Ciallella, D Scerrato - International Journal of Solids and …, 2020 - Elsevier
Fiber-reinforced composites are materials that display a great potentiality in many
applications for their multifaceted features. The employment of curved fibers contributes to …

Second-grade elasticity of three-dimensional pantographic lattices: theory and numerical experiments

I Giorgio, F Dell'isola, DJ Steigmann - Continuum Mechanics and …, 2024 - Springer
A continuum theory of pantographic lattices, based on second-grade elasticity, is presented.
The proposed model is able to describe the mechanical behavior of a type of material …

Kresling tube metamaterial exhibits extreme large-displacement buckling behavior

E Turco, E Barchiesi, A Causin, F dell'Isola… - Mechanics Research …, 2023 - Elsevier
The present contribution proves that Kresling-patterned tubular origami metamaterials can
exhibit a nonlinear buckling behavior in compression characterized by extremely significant …

Identification of a geometrically nonlinear micromorphic continuum via granular micromechanics

A Misra, L Placidi, F dell'Isola, E Barchiesi - Zeitschrift für angewandte …, 2021 - Springer
Describing the emerging macro-scale behavior by accounting for the micro-scale
phenomena calls for microstructure-informed continuum models accounting properly for the …

Complex mechanical properties of 3D micro-metric pantographic metamaterials fabricated by two-photon polymerization

E Barchiesi, S Mavrikos, I Giorgio… - Continuum Mechanics …, 2024 - Springer
Mechanical metamaterials consist of specially engineered features designed to tailor and
enhance the mechanical properties of their constituent materials. In this context, 2D …

[HTML][HTML] Two layers pantographs: a 2D continuum model accounting for the beams' offset and relative rotations as averages in SO (3) Lie groups

I Giorgio, V Varano, F Dell'Isola, NL Rizzi - International Journal of Solids …, 2021 - Elsevier
In the problem of the synthesis of metamaterials, the pantographic architecture revealed
remarkable potentialities. Indeed it allowed for the synthesis of second gradient 2D …

Inverse analysis of metamaterials and parameter determination by means of an automatized optimization problem

N Shekarchizadeh, BE Abali… - ZAMM‐Journal of …, 2021 - Wiley Online Library
In this paper, a novel parameter determination technique is developed for material models in
continuum mechanics aimed at describing metamaterials. Owing to their peculiar …

Size effects of mechanical metamaterials: a computational study based on a second-order asymptotic homogenization method

H Yang, WH Müller - Archive of Applied Mechanics, 2021 - Springer
In this paper, size effects exhibited by mechanical metamaterials have been studied. When
the sizescale of the metamaterials is reduced, stiffening or softening responses are …

A numerical investigation on impulse-induced nonlinear longitudinal waves in pantographic beams

E Turco, E Barchiesi, F dell'Isola - … and Mechanics of Solids, 2022 - journals.sagepub.com
This contribution presents the results of a campaign of numerical simulations aimed at better
understanding the propagation of longitudinal waves in pantographic beams within the large …