Mechanical Modeling and Simulation of Ferromagnetic Fe Particle Reinforced Elastomer Composites for Automotive Applications

汽车应用铁磁 Fe 颗粒增强弹性体复合材料的机械建模和仿真

• 批准号: 0084629
• 负责人: Lizhi Sun
• 金额: $ 14.57万
• 依托单位: University of Iowa
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-09-15 至 2003-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0084629&HistoricalAwards=false
• 关键词: Mechanical; Modeling; Simulation; Ferromagnetic; Fe

0084629SunThis research is supported under the initiative Exploratory Research on Model-Based Simulation. Analytical and numerical tools are developed to efficiently predict the effective magneto-mechanical behavior of ferromagnetic Fe particle reinforced elastomer composites and their structures. The project focuses specifically on the effects of saturated magnetostriction of Fe particles, finite hyperelasticity of elastomer matrix, and the fabrication curing-induced residual stresses, on the effective constitutive behavior of these composites. Model-based simulations using newly developed meshfree numerical procedures are performed on an automobile engine mount example to demonstrate structural responses and provide reliable information for the engineering design.The modeling and simulation of magnetostrictive elastomer composite structures is intended to decrease design process time and cost, by reducing component testing, and to increase the simulation accuracy of the structures. The proposed three-dimensional material constitutive model is able to illustrate the overall magneto-hyperelastic behavior of Fe particle-reinforced elastomer composites.***

本研究由“基于模型的仿真探索性研究”项目资助。为了有效地预测铁磁性铁颗粒增强弹性体复合材料及其结构的有效磁力学行为，开发了分析和数值工具。该项目特别关注铁颗粒的饱和磁致伸缩，弹性体基体的有限超弹性以及制造固化诱导的残余应力对这些复合材料有效本构行为的影响。以某汽车发动机悬置为例，采用新开发的无网格数值模拟方法进行了基于模型的仿真，以验证结构响应，为工程设计提供可靠信息。磁致伸缩弹性体复合材料结构的建模和仿真旨在通过减少构件测试来减少设计过程中的时间和成本，并提高结构的仿真精度。所提出的三维材料本构模型能够描述铁颗粒增强弹性体复合材料的整体磁超弹性行为