相关实验视频

Updated: Jul 1, 2025

Experimental Methods for Investigation of Shape Memory Based Elastocaloric Cooling Processes and Model Validation

Experimental Methods for Investigation of Shape Memory Based Elastocaloric Cooling Processes and Model Validation

Published on: May 2, 2016

使用交互式纤维复合材料的形状记忆合金材料模型的调查和验证

Achyuth Ram Annadata¹, Aline Iobana Acevedo-Velazquez², Lucas A Woodworth³

¹Institute of Textile Machinery and High Performance Material Technology, TU Dresden, 01062 Dresden, Germany.

Materials (Basel, Switzerland)

|March 13, 2024

概括

这项研究验证了伍德沃思和卡利斯克 (WK) 形状记忆合金 (SMA) 模型的适应性曲结构. WK模型准确地预测了交互式纤维复合材料 (IFRC) 中的SMA行为.

科学领域:

材料科学材料科学材料科学
机械工程机械工程
计算建模计算建模

背景情况:

智能系统需要适应性曲结构,以增强人机交互.
交互式纤维复合材料 (IFRC) 使用智能材料,特别是形状记忆合金 (SMA),作为执行器.
精确的SMA行为建模对于优化其多样化的应用至关重要.

研究的目的:

为了研究伍德沃思和卡利斯克 (WK) 的现象学构成性SMA材料模型.
为了解决Souza和Auricchio (SA) SMA模型在处理不规则几何形状的预拉伸方面的局限性.
通过IFRC结构中观察到的变形来验证WK模型的性能.

主要方法:

研究了WK SMA材料模型.
在IFRC结构中观察到的利用变形作为参考.
在ANSYS中使用SA SMA材料模型对WK模型与模拟模型进行了验证.

主要成果:

WK SMA 材料模型在适用于不规则的 SMA 线材配置文件的预拉伸方面表现出灵活性.
验证证实了WK模型的可靠性和准确性,与IFRC应用的SA模型相比.
该研究建立了对WK模型的信任,用于基于SMA的系统中的预测分析.

结论:

WK SMA 材料模型为模拟复杂的 SMA 行为提供了可行的解决方案,特别是在 IFRC 应用中.
使用经过验证的WK模型进行准确的预测分析,有助于开发先进的自适应曲结构.
这项研究有助于智能材料和智能系统设计的进步.

关键词:

伍德沃思和卡利斯克的SMA模型互动性纤维复合材料的复合材料形状记忆合金的合金.

更多相关视频

Fabrication of a Bioactive, PCL-based "Self-fitting" Shape Memory Polymer Scaffold

Fabrication of a Bioactive, PCL-based "Self-fitting" Shape Memory Polymer Scaffold

Published on: October 23, 2015

Cutting Procedures, Tensile Testing, and Ageing of Flexible Unidirectional Composite Laminates

Cutting Procedures, Tensile Testing, and Ageing of Flexible Unidirectional Composite Laminates

Published on: April 27, 2019

相关概念视频

Members Made of Elastoplastic Material

Members Made of Elastoplastic Material

The behavior of elastoplastic materials under bending stresses, particularly in structural members with rectangular cross-sections, is crucial for predicting material responses and understanding failure modes. Initially, when a bending moment is applied, the stress distribution across the section follows Hooke's Law and is linear and elastic. This distribution means the stress increases from the neutral axis to the maximum at the outer fibers, up to the elastic limit.
As the bending moment...

Bending of Members Made of Several Materials

Bending of Members Made of Several Materials

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...