Stress-constrained topology optimization considering uniform manufacturing uncertainties

GA da Silva, AT Beck, O Sigmund - Computer Methods in Applied …, 2019 - Elsevier
This paper proposes a robust design approach, based on eroded, intermediate and dilated
projections, to handle uniform manufacturing uncertainties in stress-constrained topology …

[PDF][PDF] A short introduction to basic aspects of continuum micromechanics

HJ Böhm - Cdl-fmd report, 1998 - ilsb.tuwien.ac.at
In the present report some basic issues of and some of the modeling strategies used for
studying static and quasistatic problems in continuum micromechanics of materials are …

Material twins generation of woven polymer composites based on ResL-U-Net convolutional neural networks

Y Song, Z Qu, H Liao, S Ai - Composite Structures, 2023 - Elsevier
Using digital material twins reveals the fabric architectures of woven composites and details
the morphological features of fiber tows and defects, which makes a unique approach to …

Automated reconstruction and conformal discretization of 3D woven composite CT scans with local fiber volume fraction control

B Wintiba, D Vasiukov, S Panier, SV Lomov… - Composite …, 2020 - Elsevier
An ad hoc methodology for voxel-based geometry reconstruction is proposed. The
reconstruction procedure outlined is fully automated and allows transforming explicit voxel …

Non-orthogonal FE model with stress smoothing for progressive damage analysis of shear pre-deformed 3D angle-interlock woven composites under compression

B Wang, Z Chen, G Fang, S Meng - International Journal of Mechanical …, 2022 - Elsevier
Abstract 3D angle interlock woven fabric usually needs to produce pre-deformation to meet
the requirements of the complex shape of the target configuration. This cause the internal …

Progressive damage analysis of 3D braided composites using FFT-based method

B Wang, G Fang, S Liu, M Fu, J Liang - Composite Structures, 2018 - Elsevier
Spectral method based on Fast Fourier Transforms (FFT) is developed to study the
mechanical properties of three-dimensional (3D) braided composites with complex internal …

On the importance of nesting considerations for accurate computational damage modelling in 2D woven composite materials

LF Varandas, G Catalanotti, AR Melro… - Computational Materials …, 2020 - Elsevier
The mechanical behaviour and progressive damage of two-dimensional plain woven carbon-
epoxy fabrics is modelled at different length scales, taking into account the geometric and …

[HTML][HTML] Meso-scale modelling of 3D woven composite T-joints with weave variations

S Yan, X Zeng, A Long - Composites Science and Technology, 2019 - Elsevier
A meso-scale modelling framework is proposed to simulate the 3D woven fibre architectures
and the mechanical performance of the composite T-joints, subjected to quasi-static tensile …

[HTML][HTML] A 3D voxel-based mesostructure generator for finite element modelling of tow-based discontinuous composites

L Gulfo, OH Nilsson, J Sjöberg, I Katsivalis… - Composites Part B …, 2024 - Elsevier
Tow-based discontinuous composites manufactured with ultra-thin tapes display high
stiffness, strength, and in-plane isotropy, thus competing with composite laminates. Their …

An accurate, adaptive and scalable parallel finite element framework for the part-scale thermo-mechanical analysis in metal additive manufacturing processes

CA Moreira, MA Caicedo, M Cervera… - Computational …, 2024 - Springer
This work introduces a distributed memory machine and octree-based Finite Element (FE)
framework for modeling metal Additive Manufacturing (AM) processes. In this sense, an …