SGER: Inverse Analysis Methodology to Determine Flow Stress Data for Finite Element Modeling of Machining

SGER：确定加工有限元建模流动应力数据的逆分析方法

• 批准号: 0732289
• 负责人: Taylan Altan
• 金额: --
• 依托单位: Ohio State University Research Foundation -DO NOT USE
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-07-01 至 2008-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0732289&HistoricalAwards=false
• 关键词: SGER; Inverse; Analysis; Methodology; Determine

The research objective of this Small Grant for Exploratory Research (SGER) project is to develop a new method for determining material properties under large strain, strain rate and temperature conditions that exist in metal cutting. These property data can then be used in finite element analysis of machining operations. The approach will include three tasks: 1) development of advanced steady state finite element model for two-dimensional (orthogonal) cutting, 2) development of an inverse analysis algorithm, and 3) experimental validation of the developed inverse analysis methodology to determine flow stress data using orthogonal cutting tests.The results of this project will be a reliable test method for obtaining material data for "virtual machining", i.e. computer simulation of machining processes. Thus, researchers as well the machining companies, that represent a large portion of North American manufacturing industry will have a tool for conducting reliable machining simulations. As with other applications, simulation of machining operations saves time and costs. Consequently, the results of this project will contribute to productivity increases across the manufacturing industry, especially with companies that manufacture cutting tools and mechanical components produced by machining.

该探索性研究（SGER）项目的研究目标是开发一种新方法，用于确定金属切削中存在的大应变，应变率和温度条件下的材料特性。 然后，这些属性数据可以用于加工操作的有限元分析。 该办法将包括三项任务：1）开发了先进的二维稳态有限元模型（正交）切削，2）开发一种反分析算法，3）实验验证开发的反分析方法，以确定流动应力数据使用正交切削试验。该项目的结果将是一个可靠的测试方法，获得材料数据的“虚拟加工”，即，机械加工过程的计算机模拟。因此，代表北美制造业很大一部分的研究人员以及加工公司将拥有进行可靠加工模拟的工具。与其他应用一样，加工操作的仿真可以节省时间和成本。因此，该项目的结果将有助于提高整个制造业的生产率，特别是生产切削工具和机械加工生产的机械部件的公司。