Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Unsymmetric Loading of Thin-Walled Members: Problem Solving01:07

Unsymmetric Loading of Thin-Walled Members: Problem Solving

173
The shear center of a channel section with uniform thickness, height, and width, is determined by computing the shear force in the member and calculating the moments of inertia of the sections.
To compute the shear forces, find the shear flow at a specific distance from the endpoint using the vertical shear and the moment of inertia values. The total shear force on the flange is calculated by integrating the shear flow from one end of the flange to the other.
Next, calculate the moments of...
173
Unsymmetric Loading of Thin-Walled Members01:23

Unsymmetric Loading of Thin-Walled Members

153
Thin-walled members with non-symmetrical cross-sections are vital to engineering structures, offering material efficiency and structural integrity. However, unsymmetrical loading on these members leads to complex stress distributions, resulting in simultaneous bending and twisting can cause deformation or structural failure. The interaction between bending and twisting requires detailed analysis to ensure structural resilience.
The concept of the shear center is crucial in countering the...
153
Internal Loadings in Structural Members: Problem Solving01:28

Internal Loadings in Structural Members: Problem Solving

1.4K
When designing or analyzing a structural member, it is important to consider the internal loadings developed within the member. These internal loadings include normal force, shear force, and bending moment. Engineers can ensure that the structural member can support the applied external forces by calculating these internal loadings.
To illustrate this, let's consider a beam OC of 5 kN, inclined at an angle of 53.13° with the horizontal and supported at both ends. Determine the internal...
1.4K
Shearing Stresses in a Beam: Problem Solving01:14

Shearing Stresses in a Beam: Problem Solving

315
A cantilever beam with a rectangular cross-section under distributed and point loads experiences shearing stresses. The analysis begins by identifying the loads acting on the beam. Then, the reactions at the beam's fixed end are calculated using equilibrium equations. The vertical reaction is a combination of the distributed and point loads, while the moment reaction is the sum of their moments. The shear force distribution along the beam, resulting from these loads, is established by...
315
Bending of Members Made of Several Materials01:08

Bending of Members Made of Several Materials

274
In analyzing a structural member composed of two different materials with identical cross-sectional areas, it is crucial to understand how their distinct elastic properties affect the member's response under load. The analysis involves assessing stress and strain distributions using the transformed section concept, which accounts for variations in material properties.
Hooke's Law determines stress in each material, stating that stress is proportional to strain but varies due to each...
274
Design Example: Managing Concrete Workability01:14

Design Example: Managing Concrete Workability

123
This example deals with managing the workability of concrete for a raft foundation project under hot weather conditions. Workability is crucial for ensuring the concrete is easy to place, compact, and finish. In this scenario, a slump test — a common method to measure the workability of fresh concrete — initially indicated low workability. This was attributed to the rapid water loss from the concrete mix, exacerbated by the high temperatures causing the course aggregates to heat up.
123

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Influence of Structural Theories on Optimal Fiber Distributions in Tow-Steered Composites Considering Local Strain and Stress.

L'Aerotecnica, missili e spazio·2026
Same author

Fundamental Frequency Layer-Wise Optimization of Tow-Steered Composites Considering Gaps and Overlaps.

L'Aerotecnica, missili e spazio·2025
Same author

Unified three-dimensional finite elements for large strain analysis of compressible and nearly incompressible solids.

Mechanics of advanced materials and structures·2024
Same author

Concrete damage analysis based on higher-order beam theories using fracture energy regularization.

Mechanics of advanced materials and structures·2023
Same author

Unified one-dimensional finite element for the analysis of hyperelastic soft materials and structures.

Mechanics of advanced materials and structures·2023
Same author

Quasi-static fracture analysis by coupled three-dimensional peridynamics and high order one-dimensional finite elements based on local elasticity.

International journal for numerical methods in engineering·2022
Same journal

Deblurring structural edges in variable thickness topology optimization via density-gradient-informed projection.

Structural and multidisciplinary optimization : journal of the International Society for Structural and Multidisciplinary Optimization·2026
Same journal

Reinforcement learning-based control co-design of digital twin-enabled full-vehicle active suspension systems.

Structural and multidisciplinary optimization : journal of the International Society for Structural and Multidisciplinary Optimization·2026
Same journal

A novel multi-thickness topology optimization method for balancing structural performance and manufacturability.

Structural and multidisciplinary optimization : journal of the International Society for Structural and Multidisciplinary Optimization·2026
Same journal

Adjoint-based PDE-constrained optimization of viscoelastic floating membrane for maximum wave power absorption.

Structural and multidisciplinary optimization : journal of the International Society for Structural and Multidisciplinary Optimization·2026
Same journal

Differentiable modelling and optimization of multi-planar slicing for multi-axis additive manufacturing.

Structural and multidisciplinary optimization : journal of the International Society for Structural and Multidisciplinary Optimization·2026
Same journal

Geometrically nonlinear high-fidelity aerostructural optimization for highly flexible wings.

Structural and multidisciplinary optimization : journal of the International Society for Structural and Multidisciplinary Optimization·2025
查看所有相关文章

相关实验视频

Updated: Sep 19, 2025

Fabrication and Design of Wood-Based High-Performance Composites
08:08

Fabrication and Design of Wood-Based High-Performance Composites

Published on: November 9, 2019

13.5K

混合整数,多目标层次优化可变刚度复合材料的间隙和重叠.

D Zamani1, A Racionero Sánchez-Majano1,2, A Pagani1

  • 1MUL 2 Lab, Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Turin, Italy.

Structural and multidisciplinary optimization : journal of the International Society for Structural and Multidisciplinary Optimization
|June 17, 2025
PubMed
概括
此摘要是机器生成的。

本研究介绍了一种混合整数策略,用于优化可变角拉 (VAT) 复合材料,最大限度地降低重量,同时满足性能要求,并考虑自动纤维放置 (AFP) 中的制造缺陷. 该方法确保了结构完整性,并减少了航空航天应用中的重量.

关键词:
结构优化. 结构优化.统一的配方 统一的配方可变刚度复合材料的复合材料.可变角度拖拉机的拖拉机.

更多相关视频

Structural Design and Manufacturing of a Cruiser Class Solar Vehicle
14:57

Structural Design and Manufacturing of a Cruiser Class Solar Vehicle

Published on: January 30, 2019

14.0K
Experimental Implementation of a New Composite Fabrication Method: Exposing Bare Fibers on the Composite Surface by the Soft Layer Method
06:26

Experimental Implementation of a New Composite Fabrication Method: Exposing Bare Fibers on the Composite Surface by the Soft Layer Method

Published on: October 6, 2017

8.5K

相关实验视频

Last Updated: Sep 19, 2025

Fabrication and Design of Wood-Based High-Performance Composites
08:08

Fabrication and Design of Wood-Based High-Performance Composites

Published on: November 9, 2019

13.5K
Structural Design and Manufacturing of a Cruiser Class Solar Vehicle
14:57

Structural Design and Manufacturing of a Cruiser Class Solar Vehicle

Published on: January 30, 2019

14.0K
Experimental Implementation of a New Composite Fabrication Method: Exposing Bare Fibers on the Composite Surface by the Soft Layer Method
06:26

Experimental Implementation of a New Composite Fabrication Method: Exposing Bare Fibers on the Composite Surface by the Soft Layer Method

Published on: October 6, 2017

8.5K

科学领域:

  • 复合材料科学 复合材料科学
  • 航空航天工程 航空航天工程
  • 结构优化 结构优化

背景情况:

  • 自动化纤维放置 (AFP) 能够实现可变角度拖 (VAT) 复合材料,以提高机械性能和减轻航空航天领域的重量.
  • 制造缺陷,如增值税层板的空隙和重叠,对质量和结构优化构成挑战.
  • 优化增值税结构涉及复杂的离散 (层数) 和连续 (光纤路径) 设计变量.

研究的目的:

  • 开发一个混合整数策略,以优化由AFP生产的增值税层设计.
  • 为了最大限度地降低增值税层材的重量,同时满足自然频率和曲折负荷的约束.
  • 将制造缺陷的影响和AFP工艺特征纳入优化.

主要方法:

  • 结合了Carrera统一配方 (CUF) 用于层层建模与缺陷层方法 (DLM) 来考虑制造缺陷.
  • 使用混合整数策略来处理离散和连续的设计变量.
  • 将AFP过程的制造特征集成到优化框架中.

主要成果:

  • 确定增值税层材所需的最低层次数,以满足频率和曲约束,考虑到制造缺陷.
  • 识别最佳的纤维路径参数,以最大限度地降低层重量.
  • 评估不同结构理论对所得到的最佳设计的影响.

结论:

  • 拟议的混合整数策略有效地优化了增值税层设计的重量和结构性能.
  • 考虑AFP制造缺陷对于准确优化VAT复合材料的结构至关重要.
  • 这种方法有助于开发更轻,更高效的航空航天结构.