GOALI: A Hybrid Failure Approach using Digital Image Correlation for Functionally Graded Thin-Bonded Overlays

GOALI：使用数字图像相关性实现功能分级薄粘合覆盖层的混合失效方法

• 批准号: 1031218
• 负责人: William Buttlar
• 金额: $ 32.21万
• 依托单位: University of Illinois at Urbana-Champaign
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-09-01 至 2014-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1031218&HistoricalAwards=false
• 关键词: GOALI; Hybrid; Failure; Approach; using

In the United States, there are over 2.6 million miles of paved roads 94.6% of which have an asphalt concrete surface, representing a $30 billion annual investment. Premature fracturing of asphalt overlays poses a significant economic and environmental burden to society and can reduce the safety of our nation?s highway and airfield pavement infrastructure. The proposed partnership between university and industry in this GOALI study will lead to the development of advanced pavement rehabilitation systems (thin, bonded overlays) that are recyclable, sustainable, and provide a safe riding surface. The proposed work plan will utilize a hybrid approach, involving advanced laboratory testing and instrumentation, development of new damage models, simulation of pavement systems, and calibration of models to field performance. This project will also improve how digital imaging can be used to understand fracture behavior in complex, layered, composite infrastructure material systems.Besides the aforementioned advancement in discovery and understanding, the broader impacts of the proposed project are: the promotion of teaching, training, and learning, through incorporation of research results in university courses; broadened participation in research by underrepresented groups through Minority Outreach Program and the Worldwide Youth in Science and Engineering Program; and; broad dissemination of research results in journals, and through conference presentations, and workshops. The benefits of the proposed research to society include: a more sustainable approach to pavement maintenance; reduced life cycle costs, and; improved highway safety. Through partnership with industry, the new techniques will be validated against field projects and transferred to practitioners through regional workshops.

在美国，有超过260万英里的铺装道路有94.6％的沥青混凝土表面，年度投资为300亿美元。沥青覆盖的过早破裂给社会带来了巨大的经济和环境负担，并可以降低我们国家的公路和机场路面基础设施的安全。在这项目标研究中，大学与工业之间的拟议合作伙伴关系将导致发展高级路面康复系统（薄，粘合的覆盖层），这些系统可回收，可持续性并提供安全的骑行表面。拟议的工作计划将采用混合方法，涉及先进的实验室测试和仪器，开发新损坏模型，模拟路面系统以及对现场性能的校准。 该项目还将改善如何使用数字成像来理解复杂，分层，复合基础设施材料系统中的断裂行为。Besides，通过在大学课程中纳入研究成果，在发现和理解方面的进步，拟议项目的更广泛影响是：促进教学，培训和学习；通过少数派外展计划和科学与工程计划的全球青年，扩大了代表性不足的团体的研究；和;通过期刊，会议演讲和研讨会的研究结果广泛传播。拟议的社会研究的好处包括：一种更可持续的人行道维护方法；降低了生命周期成本，并且；改善了高速公路安全。通过与行业的合作关系，新技术将针对现场项目进行验证，并通过区域研讨会转移给从业人员。