[HTML][HTML] Mechanical metamaterials with topologies based on curved elements: An overview of design, additive manufacturing and mechanical properties

A Álvarez-Trejo, E Cuan-Urquizo, D Bhate… - Materials & Design, 2023 - Elsevier
The design of metamaterials involves the optimal distribution of material inside a volume;
therefore, it has benefited from the development of Additive Manufacturing (AM) techniques …

Isogeometric sizing and shape optimization of 3D beams and lattice structures at large deformations

O Weeger - Structural and Multidisciplinary Optimization, 2022 - Springer
A computational method for optimizing the shape of the centerline curve and the spatial
variation of geometric and material sizing parameters of the cross-sections of elastic, 3 …

[HTML][HTML] Geometrically exact static isogeometric analysis of an arbitrarily curved spatial Bernoulli–Euler beam

A Borković, B Marussig, G Radenković - Computer Methods in Applied …, 2022 - Elsevier
The objective of this research is the development of a geometrically exact model for the
analysis of arbitrarily curved spatial Bernoulli–Euler beams. The complete metric of the …

An improved isogeometric collocation formulation for spatial multi-patch shear-deformable beams with arbitrary initial curvature

D Ignesti, G Ferri, F Auricchio, A Reali… - Computer Methods in …, 2023 - Elsevier
The present paper presents a robust multi-patch formulation based on the isogeometric
collocation (IGA-C) method for the solution of linear, spatial Timoshenko beam structures …

A selectively reduced degree basis for efficient mixed nonlinear isogeometric beam formulations with extensible directors

MJ Choi, RA Sauer, S Klinkel - Computer Methods in Applied Mechanics …, 2023 - Elsevier
The effect of higher order continuity in the solution field by using NURBS basis function in
isogeometric analysis (IGA) is investigated for an efficient mixed finite element formulation …

[HTML][HTML] Geometrically exact isogeometric Bernoulli–Euler beam based on the Frenet–Serret frame

A Borković, MH Gfrerer, B Marussig - Computer Methods in Applied …, 2023 - Elsevier
A novel geometrically exact model of the spatially curved Bernoulli–Euler beam is
developed. The formulation utilizes the Frenet–Serret frame as the reference for updating …

Geometrically exact thin-walled beam including warping formulated on the special Euclidean group SE (3)

J Rong, Z Wu, C Liu, O Brüls - Computer Methods in Applied Mechanics …, 2020 - Elsevier
Based on a formulation on the special Euclidean group SE (3), a geometrically exact thin-
walled beam with an arbitrary open cross-section is proposed to deal with the finite …

两类基于局部标架梁单元的闭锁缓解方法

汤惠颖, 张志娟, 刘铖, 刘绍奎 - 力学学报, 2021 - lxxb.cstam.org.cn
对于大转动, 大变形柔性体的刚柔耦合动力学问题, 基于李群SE (3) 局部标架(local frame
formulation, LFF) 的建模方法能够规避刚体运动带来的几何非线性问题, 离散数值模型中广义 …

An isogeometric finite element formulation for geometrically exact Timoshenko beams with extensible directors

MJ Choi, RA Sauer, S Klinkel - Computer Methods in Applied Mechanics …, 2021 - Elsevier
An isogeometric finite element formulation for geometrically and materially nonlinear
Timoshenko beams is presented, which incorporates in-plane deformation of the cross …

Geometrically nonlinear multi-patch isogeometric analysis of spatial Euler–Bernoulli beam structures

D Vo, P Nanakorn, TQ Bui - Computer Methods in Applied Mechanics and …, 2021 - Elsevier
This study presents a novel isogeometric Euler–Bernoulli beam formulation for geometrically
nonlinear analysis of multi-patch beam structures. The proposed formulation is derived from …