Risk Assuring Future Structure Critical Systems: Combining 21st Century Science with Engineering Intuition - Renewal

确保未来结构关键系统的风险:将 21 世纪科学与工程直觉相结合 - Renewal

基本信息

  • 批准号:
    MR/Y020235/1
  • 负责人:
  • 金额:
    $ 75.85万
  • 依托单位:
  • 依托单位国家:
    英国
  • 项目类别:
    Fellowship
  • 财政年份:
    2024
  • 资助国家:
    英国
  • 起止时间:
    2024 至 无数据
  • 项目状态:
    未结题

项目摘要

As you read this you are probably sitting down. When you sat down, were you concerned that the chair would fail? You likely did not even consider it as you may have sat in this same chair hundreds, if not thousands of times before. You used your empirical knowledge that this chair is safe for you to sit in. What if this was a new chair to you? If the chair was brand new, you would take comfort in the fact that the chair has been manufactured to a standard and been subject to some level of quality control. If the chair belongs to an organisation then you would expect that organisation to take responsibility if the chair failed and would have been replaced if reported by another user.Failure of the chair will, very rarely, be due to a poor design. The chair will be able to withstand any expected loads assuming that it has been manufactured correctly; however, the material that it is made from will be inherently variable and contain defects that are not always apparent at the point of a manufacturing inspection. The degree of that material variability may be slight and the defect sizing understood, but making sure that the design takes account of this variability through life (especially when the chair is mistreated) is often not considered. To some extent we are all materials engineers when we make a judgement that the chair appears to be 'sturdy' before we sit down, but we do this based on our empirical knowledge and not on the science that is available to us. Are you sure the next time you sit in the chair it won't fail? Your empirical knowledge only informs you of what happened last time not what 'will' happen in the future. The application of materials science knowledge will inform the future performance. Bridging the gap between the atomistic world of materials science that defines the best estimate of mechanical performance and the bounding estimates required in materials engineering that takes account of the variability and defects is key to improving trust in applying materials science to engineering structures.Assurance is about the trust that we place that the quality system has not failed. The chair may have been subject to a level of quality control before it left the factory, at this stage we need to have trust in the manufacturer. If the chair belongs to an individual or organisation, we trust that as responsible owners, that they would replace the chair if broken and that they have systems in place to check if the chair is broken before someone sits on it.This fellowship is about developing a similar level of trust for future high integrity or critical applications. We cannot use empirical knowledge, i.e. we don't have thousands of years of experience with building fusion reactors or producing high integrity power transmission systems for aerospace applications, so we must use science. Developing a similar level of trust in the predictive modelling capability in the application of materials science to these complex and high value systems, to the empirical knowledge we all have of our usual chair is key to unlocking the public trust in the safe performance of future critical systems.
当你读到这篇文章时,你可能正在坐下来。当你坐下时,你是否担心椅子会失败?你可能甚至没有考虑过它,因为你可能已经坐在同一把椅子上几百次,如果不是几千次的话。你用你的经验知识证明这把椅子对你来说是安全的。如果这对你来说是一把新椅子呢?如果椅子是全新的,你会感到安慰的事实是,椅子已制造的标准,并受到一定程度的质量控制。如果椅子属于一个组织,那么你会希望该组织承担责任,如果椅子失败,并已被更换,如果由另一个用户报告。椅子的失败将,很少,是由于一个糟糕的设计。假设椅子已正确制造,则椅子将能够承受任何预期载荷;然而,制造椅子的材料将具有固有的可变性,并且包含在制造检查时并不总是明显的缺陷。材料的变化程度可能很小,缺陷尺寸也可以理解,但确保设计考虑到整个寿命期间的这种变化(特别是当椅子受到虐待时)通常不会被考虑。在某种程度上,我们都是材料工程师,当我们在坐下之前判断椅子看起来“坚固”时,但我们这样做是基于我们的经验知识,而不是我们可以利用的科学。你确定下次你坐在椅子上不会失败吗?你的经验知识只告诉你上次发生了什么,而不是将来会发生什么。材料科学知识的应用将为未来的表现提供信息。材料科学的原子世界定义了机械性能的最佳估计值,而材料工程所需的边界估计值考虑了可变性和缺陷,弥合两者之间的差距是提高将材料科学应用于工程结构的信任度的关键。保证是我们对质量体系没有失败的信任。椅子在出厂前可能已经受到一定程度的质量控制,在这个阶段,我们需要信任制造商。如果椅子属于个人或组织,我们相信作为负责任的所有者,如果椅子坏了,他们会更换椅子,并且他们有系统在有人坐上椅子之前检查椅子是否坏了。这个奖学金是关于为未来的高诚信或关键应用程序建立类似的信任水平。我们不能使用经验知识,也就是说,我们没有数千年的建造聚变反应堆或为航空航天应用生产高完整性电力传输系统的经验,所以我们必须使用科学。在材料科学应用于这些复杂和高价值系统的预测建模能力中,开发类似程度的信任,以及我们对我们通常的椅子的经验知识,是解锁公众对未来关键系统安全性能的信任的关键。

项目成果

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Daniel James Cogswell其他文献

Daniel James Cogswell的其他文献

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{{ truncateString('Daniel James Cogswell', 18)}}的其他基金

Risk Assuring Future Structure Critical Systems: Combining 21st Century Science with Engineering Intuition
确保未来结构关键系统的风险:将 21 世纪科学与工程直觉相结合
  • 批准号:
    MR/T02058X/1
  • 财政年份:
    2020
  • 资助金额:
    $ 75.85万
  • 项目类别:
    Fellowship

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