[HTML][HTML] Bending and wrinkling of composite fiber preforms and prepregs. A review and new developments in the draping simulations

P Boisse, J Colmars, N Hamila, N Naouar… - Composites Part B …, 2018 - Elsevier
Bending properties play a significant role in the forming of textile composites reinforcements,
particularly in determining the shape of wrinkles. The physics related to the bending of …

The bias-extension test for the analysis of in-plane shear properties of textile composite reinforcements and prepregs: a review

P Boisse, N Hamila, E Guzman-Maldonado… - International Journal of …, 2017 - Springer
The bias-extension test is a rather simple experiment aiming to determine in-plane shear
properties of textile composite reinforcements. However the mechanics during the test …

Pantographic metamaterials: an example of mathematically driven design and of its technological challenges

F Dell'Isola, P Seppecher, JJ Alibert… - Continuum Mechanics …, 2019 - Springer
In this paper, we account for the research efforts that have been started, for some among us,
already since 2003, and aimed to the design of a class of exotic architectured, optimized …

Homogenization à la Piola produces second gradient continuum models for linear pantographic lattices

Y Rahali, I Giorgio, JF Ganghoffer… - International Journal of …, 2015 - Elsevier
In the present work, we show that the linearized homogenized model for a pantographic
lattice must necessarily be a second gradient continuum, as defined in Germain (1973) …

Advances in composite forming through 25 years of ESAFORM

P Boisse, R Akkerman, P Carlone, L Kärger… - International Journal of …, 2022 - Springer
The increase in the number of structural applications of composite materials, especially in
the aerospace and automotive industries, has led to a demand for robust models to simulate …

Linear pantographic sheets: asymptotic micro-macro models identification

C Boutin, I Giorgio, L Placidi - Mathematics and Mechanics of Complex …, 2017 - msp.org
In this paper we consider linear pantographic sheets, which in their natural configuration are
constituted by two orthogonal arrays of straight fibers interconnected by internal pivots. We …

Continuum modelling of pantographic sheets for out-of-plane bifurcation and vibrational analysis

I Giorgio, NL Rizzi, E Turco - Proceedings of the Royal …, 2017 - royalsocietypublishing.org
A nonlinear two-dimensional (2D) continuum with a latent internal structure is introduced as
a coarse model of a plane network of beams which, in turn, is assumed as a model of a …

Identification of two-dimensional pantographic structure via a linear D4 orthotropic second gradient elastic model

L Placidi, U Andreaus, I Giorgio - Journal of Engineering Mathematics, 2017 - Springer
A linear elastic second gradient orthotropic two-dimensional solid that is invariant under 90^
∘ 90∘ rotation and for mirror transformation is considered. Such anisotropy is the most …

Two-dimensional strain gradient damage modeling: a variational approach

L Placidi, A Misra, E Barchiesi - Zeitschrift für angewandte Mathematik und …, 2018 - Springer
In this paper, we formulate a linear elastic second gradient isotropic two-dimensional
continuum model accounting for irreversible damage. The failure is defined as the condition …

[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 …