A Geometrical Exact Three-Dimensional Beam Model including the Effects of Section Distortions

机译：包含截面变形影响的几何精确三维梁模型

获取原文

获取原文并翻译 | 示例

页面导航

摘要
著录项
相似文献
相关主题

摘要

A geometrically nonlinear beam model suitable for describing complex three-dimensional effects due to non-uniform warping including non-standard in-plane distortions of the cross-section is presented and applied to the buckling analysis of beams. Each section is endowed with a corotational frame where statics and kinematics are described using a refined linear elastic model which exploits a semi-analytical solution of the Cauchy continuum problem based on a finite element discretization of the cross-section. The stress field in this way is fully three-dimensional, allowing both the exact recovery of the standard Saint Venant solution and the consideration of some additional relevant strain modes of the cross-section that are evaluated in a simple and effective way. Numerical results are presented and compared with three-dimensional shell reference solutions obtained by using the commercial code ABAQUS.

机译：提出了一种几何非线性的梁模型，该模型适用于描述由于不均匀翘曲（包括横截面的非标准平面内变形）导致的复杂三维效应，并将其应用于梁的屈曲分析。每个部分都具有一个相关的框架，其中使用精炼的线性弹性模型描述了静力学和运动学，该模型利用了基于截面有限元离散化的柯西连续体问题的半解析解。这样的应力场是完全三维的，既可以精确恢复标准圣维南溶液，又可以考虑以简单有效的方式评估横截面的其他一些相关应变模式。给出了数值结果，并将其与使用商业代码ABAQUS获得的三维壳体参考解决方案进行了比较。

著录项

来源
《Proceedings of the Fifteenth international conference on civil, structural and environmental engineering computing》|2015年|249-249|共1页
会议地点 Prague(CZ)
作者
D. Magisano; L. Leonetti; A. Bilotta; G. Garcea;
展开▼
作者单位

Dipartimento di Informatica, Modellistica, Elettronica e Sistemistica University of Calabria, Rende, Italy;

Dipartimento di Informatica, Modellistica, Elettronica e Sistemistica University of Calabria, Rende, Italy;

Dipartimento di Informatica, Modellistica, Elettronica e Sistemistica University of Calabria, Rende, Italy;

Dipartimento di Informatica, Modellistica, Elettronica e Sistemistica University of Calabria, Rende, Italy;

展开▼
会议组织
原文格式 PDF
正文语种 eng
中图分类
关键词
nonuniform warping; composite beams; geometrically exact beams; buckling analysis;

机译：不均匀翘曲；复合梁几何上精确的光束；屈曲分析;

相似文献

外文文献
中文文献
专利

1. Finite element theory for curved and twisted beams based on exact solutions for three-dimensional solids Part 1: Beam concept and geometrically exact nonlinear formulation [J] . E. Petrov, M. Geradin Computer Methods in Applied Mechanics and Engineering . 1998,第1a4期

机译：基于三维固体精确解的弯曲和扭曲梁有限元理论，第1部分：梁概念和几何精确非线性公式
2. A geometrically exact Kirchhoff beam model including torsion warping [J] . Manta David, Goncalves Rodrigo Computers & Structures . 2016,第deca期

机译：几何精确的基尔霍夫梁模型，包括扭转翘曲
3. Comment on: On the geometrically exact beam model: A consistent, effective and simple derivation from three-dimensional finite-elasticity [J] . Dewey H. Hodges International Journal of Solids and Structures . 2009,第6期

机译：评论：关于几何精确的梁模型：三维有限弹性的一致，有效和简单推导
4. A Geometrical Exact Three-Dimensional Beam Model including the Effects of Section Distortions [C] . D. Magisano, L. Leonetti, A. Bilotta, International Conference on Civil, Structural and Environmental Engineering Computing . 2015

机译：几何精确三维光束模型，包括截面扭曲的效果
5. Modeling the Effects o9f Manufacturing Geometric Imperfections in the Buckling Analysis of Three-Dimensional Structures [D] . Salcido, Juan Carlos. 2017

机译：在三维结构屈曲分析中建模制造几何缺陷的效果
6. On the geometrically exact low-order modelling of a flexible beam: formulation and numerical tests [O] . C. Howcroft, R. G. Cook, S. A. Neild, -1

机译：关于柔性梁的几何精确低阶建模：公式和数值测试
7. A Numerical Solution for Modelling Mooring Dynamics, Including Bending and Shearing Effects, Using a Geometrically Exact Beam Model [O] . Tobias Martin, Hans Bihs 2021

机译：一种使用几何精确光束模型建模系泊动力学的数字解决方案，包括弯曲和剪切效果

A Geometrical Exact Three-Dimensional Beam Model including the Effects of Section Distortions

摘要

著录项

相似文献

相关主题

期刊订阅