Workshop on the Limits of Strength in Practice and Theory; Berkeley, CA; March 28-29, 2008

实践和理论力量极限研讨会；

• 批准号: 0738065
• 负责人: John Morris
• 金额: --
• 依托单位: University of California-Berkeley
• 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: 2007-08-01 至 2010-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0738065&HistoricalAwards=false
• 关键词: Workshop; Limits; Strength; Practice; Theory

TECHNICAL: This planned two-day symposium has the following objectives: (1) To identify, analyze, and discuss the recent advances in the theory, experimental observation and technological exploitation of the ideal strength of materials. In particular, talks and discussions will review the fascinating properties of the recently discovered "Gum metal" that appears to attain ideal strength in bulk, and deform by a dislocation-free mechanism. (2) To recognize and discuss the role of ideal strength in a number of both new and familiar modes of behavior, including nano-indentation hardness, transformation-induced plasticity, strength/toughness limits on structural materials and behavior under shock loading. The conference will be held on March 28-29, 2008 at the campus of UC Berkeley. These dates are set to overlap the end of the MRS Spring Meeting in San Francisco to ensure maximum participation. The topics the symposium will cover will include (but will not necessarily be limited to) the following:1. The meaning of ideal strength and its role in mechanical behavior.2. The computation of ideal strength from first principles.3. The role of ideal strength in nano-indentation.4. Ideal strength in bulk: Gum metal and its possible cousins.5. The role of ideal strength in cleavage.6. Phase transformation at ideal strength: "stress-induced" transformation.7. The role of ideal strength in impact: "mechanical melting".NON-TECHNICAL: The workshop will bring together a number of researchers with overlapping interests in the ideal strength of materials in a congenial environment that will facilitate discussion, debate and the initiation of long-term collaborations. It is also aimed at encouraging the participation of young researchers and members of underrepresented groups in this new and exciting field of mechanical behavior. The activities have both scientific and technological merit. Scientifically, the symposium will focus on an important new area of mechanical behavior. It will serve to communicate the status of current research, stimulate discussion and new research ideas, and establish useful collaborations. Technologically, the conference discussions should provide new insight into how the limits of strength may be exploited in the creation of new materials. The broader impact of the symposium will also come from the ideas that it should stimulate and the collaborations it should generate. PI intend to actively encourage the attendance of underrepresented minorities, and have reserved travel funds to encourage and support such attendance. PI anticipates that approximately 25% of our total attendance will be women, and will seek to identify other underrepresented minorities that are interested in this area. Awareness of the workshop will be achieved through emails to researchers involved in the field, solicitation of suitable names, and announcement of workshop on available technical societies' websites.

技术支持：本次研讨会为期两天，主要目的是：（1）对材料理想强度的理论、实验观察和技术开发等方面的最新进展进行识别、分析和讨论。特别是，讲座和讨论将回顾最近发现的“树胶金属”的迷人特性，这种金属似乎在体积上达到理想的强度，并通过无位错机制变形。(2)认识和讨论理想强度在一些新的和熟悉的行为模式中的作用，包括纳米压痕硬度，相变诱导塑性，结构材料的强度/韧性极限和冲击载荷下的行为。会议将于2008年3月28日至29日在加州大学伯克利分校举行。这些日期将与在旧金山弗朗西斯科举行的MRS春季会议结束时重叠，以确保最大限度的参与。研讨会将涵盖的主题将包括（但不一定限于）以下内容：1。理想强度的含义及其在力学行为中的作用.基于第一性原理的理想强度计算.理想强度在纳米压痕中的作用。理想强度散装：胶金属及其可能的替代品。5.理想强度在解理中的作用.理想强度下的相变：“应力诱导”相变。7.理想强度在冲击中的作用：“机械熔化”。非技术性：研讨会将汇集一些对材料理想强度有共同兴趣的研究人员，在一个适宜的环境中进行讨论、辩论和开展长期合作。它还旨在鼓励年轻的研究人员和代表性不足的群体成员参与这一令人兴奋的机械行为新领域。这些活动具有科学和技术价值。从科学的角度来看，研讨会将集中在机械行为的一个重要的新领域。它将有助于沟通当前的研究状况，激发讨论和新的研究思路，并建立有益的合作。从技术上讲，会议的讨论应该为如何在新材料的创造中利用强度的极限提供新的见解。研讨会更广泛的影响还将来自它应该激发的想法和它应该产生的合作。国际残疾人组织打算积极鼓励代表性不足的少数群体参加会议，并预留了旅费，以鼓励和支持这些少数群体参加会议。PI预计，我们的总出席人数中约有25%将是妇女，并将寻求确定其他对这一领域感兴趣的代表性不足的少数民族。将通过向该领域的研究人员发送电子邮件、征集合适的名字以及在现有技术协会的网站上宣布研讨会来了解研讨会。