GOALI: Continuous-Bending-under-Tension Studies to Enhance the Formability of Advanced Steels and Aluminum Alloys

与福特汽车公司合作的GOALI(学术联系机会)项目提供资金，以：a)建立对在拉伸下连续弯曲时增强金属成形性的机制的基本了解，以及b)通过创新的制造工艺来利用这一行为。为了使该行业利用连续拉伸弯曲来改善成形性，需要对潜在现象的基本知识、预测材料行为的准确模型以及利用这种效应的创新加工解决方案。本研究以DP780钢和AA6022铝合金两种特殊材料为研究对象。这两种材料都很有价值，并且越来越多地被用于各种重量敏感的应用中，但它们具有非常不同的微观结构，在拉伸下连续弯曲时预计会有不同的表现。主要研究人员和高级人员在实验力学、材料表征、基于微结构和连续介质的本构建模、工艺模拟和板材成形方面拥有丰富的相关专业知识，确保了这项研究的成功。如果研究成功，这项研究的结果将通过减少汽车等产品对环境的影响并使产品设计更加激进，从而进一步降低零部件的重量和成本，从而造福整个社会。此外，研究生和本科生将受益于该项目的行业重点，以及结果将直接整合到课程中的事实。此外，督导计划亦会在过往的成功基础上，从工程界代表性不足的组别中招募学生参与研究。教师的研究经验参与者将参与该项目，并将为高中科学和工程学预科课程创建模块，以吸引更多的学生学习这些学科。最后，为了确保将这项研究的结果有效地传达给工业界，将通过与工业界伙伴的合作举办讲习班。

This Grant Opportunity for Academic Liaison with Industry (GOALI) project in collaboration with Ford Motor Company provides funding to, a) create a fundamental understanding of the mechanism which enhances metal formability during continuous-bending-under-tension and b) to exploit this behavior through innovative manufacturing processes. In order for the industry to take advantage of continuous-bending-under-tension to achieve formability improvements, fundamental knowledge of the underlying phenomena, accurate models to predict material behavior and innovative processing solutions to exploit this effect are required. Two specific materials, DP780 steel and AA6022 aluminum alloy will be investigated in this research. Both of these are of interest and increasingly evaluated for various weight-sensitive applications, but have very different microstructures and are expected to behave differently during continuous-bending-under-tension. The principal investigators and senior personnel have significant and relevant expertise in experimental mechanics, material characterization, microstructural-based and continuum constitutive modeling, process simulations, and sheet metal forming, to assure the success of this research.If successful, the results of this research will benefit society at large by reducing the environmental impact of products such as automobiles and by enabling more aggressive product designs, which will further decrease the weight and cost of components. Also, graduate and undergraduate students will benefit from the industrial focus of this project and the fact that the results will be directly integrated into the curriculum. In addition, the PIs will build on their past success in recruiting students from underrepresented groups in engineering to participate in the research. Research Experience for Teachers participants will be involved in the project and will create modules for high school science and pre-engineering courses to attract more students to these disciplines. Finally, to ensure that the results of this research are effectively communicated to industry, workshops will be conducted through the collaboration with industrial partners.