Workshop: Uncertainty Quantification in Computational Solid and Structural Materials Modeling; Baltimore, Maryland; January 17-18, 2019

这笔赠款为将于2019年1月17日至18日在马里兰州巴尔的摩的约翰·霍普金斯大学举行的题为“材料计算建模中的不确定性量化”的研讨会提供资金支持。众所周知，材料的性能受到与组成、组成性质和微观或细观结构相关的不确定性的强烈影响。当材料经历巨大的不可逆变形，通过断裂或疲劳接近失效时，情况尤其如此。由于材料模型中的不确定性(例如，不完全物理造成的不确定性)以及缺乏量化材料微观或细观结构和性能分布的数据，此类行为的计算建模进一步复杂化。不确定性分析的计算成本是一个额外的挑战。这个为期两天的主题研讨会的目的是聚集固体和结构力学、材料科学和应用数学方面的知名学者，他们对不确定性量化和计算材料建模有共同的兴趣，以展示最先进的技术，共同确定现有和未来的挑战，并促进该领域的创新想法。重点一直放在将看似不同领域的专家聚集在一起，这些专家面临着与不确定性、量化和材料有关的共同挑战，但除此之外，他们只有有限的互动机会。这笔赠款的资金将用于支付10名学生/博士后研究人员参加讲习班的旅费，并在海报会议上介绍他们的工作，以及制作一份关于该领域状况的报告和一篇评论期刊文章。在这个为期两天的研讨会上，来自学术界、政府和行业的29位受邀的不确定性量化和材料建模领域的领先专家将提出计算力学、应用数学和材料科学界面临的与不确定性量化相关的持续和未来挑战。研讨会将由7个2小时的单一技术课程组成，每个课程有四个演讲和20分钟的讨论时间。由于每次会议都涉及不同的主题，这种独特的形式旨在促进围绕每个主题中最重要的技术挑战及其解决途径的讨论。研讨会还将举办海报展示环节，学生/博士后有机会分享他们的作品。这些介绍和讨论的结果将记录在一份最后报告和一篇讨论研讨会主题的全文综述期刊文章中。这两份文件将被广泛传播到研究界和其他地方。这一奖项反映了NSF的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。

This grant provides financial support for the workshop entitled "Uncertainty Quantification in Computational Modeling of Materials", to be held on January 17-18, 2019 at Johns Hopkins University in Baltimore, MD. It is widely known that the performance of materials is strongly influenced by uncertainties associated with composition, constituent properties, and micro- or meso-structure. This is especially true as materials undergo large irreversible deformations, approaching failure through fracture or fatigue. Computational modeling of such behavior is further complicated by uncertainties in material models (e.g., uncertainty due to incomplete physics), and lack of data to quantify material micro- or meso-structure and property distributions. The computational cost of uncertainty analyses is an additional challenge. The aim of this 2-day thematic workshop is to bring together prominent scholars in solid and structural mechanics, materials science, and applied mathematics with a shared interest in uncertainty quantification and computational materials modeling to showcase the state-of-the-art, collectively identify existing and future challenges, and promote innovative ideas in the field. Emphasis has been being placed on bringing together experts in seemingly disparate fields who face shared challenges related to uncertainty quantification and materials, but who otherwise have only limited opportunities to interact. Funding from this grant will support travel costs for 10 students/postdoctoral researchers to attend the workshop and present their work during a poster session as well as production of a report and a review journal article on the state of the field. In this two-day workshop, 29 invited leading experts in uncertainty quantification and materials modeling from across academia, government, and industry will present ongoing and future challenges related to uncertainty quantification facing the computational mechanics, applied mathematics, and materials science communities. The workshop will be comprised of 7, 2-hour sessions in a single technical track with each track having four presentations and a 20-minute discussion period. With each session covering a different topic, this unique format is intended to foster discussion around the most important technical challenges in each topic and avenues for their solution. The workshop will also feature a poster session where students/postdocs have the opportunity to share their work. The outcome of these presentations and discussions will be documented in a final report and a full-length review journal article discussing the themes of the workshop. These two documents will be widely disseminated to the research community and beyond.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.