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Multiscale continuum-atomistic modelling of the plastic behaviour of polycrystals and micro-devices

Multiscale continuum-atomistic modelling of the plastic behaviour of polycrystals and micro-devices
多晶和微型器件塑性行为的多尺度连续原子建模
批准号:
386354-2010
负责人:
Gracie, Robert
金额:
$1.68万
依托单位:
依托单位国家:
加拿大
项目类别:
Discovery Grants Program - Individual
财政年份:
2013
资助国家:
加拿大
项目状态:
已结题
起止时间:
2013-01-01 至 2014-12-31

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中文摘要
翻译
计算机模拟尚不能预测晶体材料的塑性行为,因此无法预测块状多晶材料或用于微型设备的材料层的韧性或强度。因此,通过一种在很大程度上依赖于直觉和试错而不是合理的工程分析的过程来合成具有目标机械性能的新的合金和材料层。这项研究计划的目标是开发一个综合的多尺度模拟框架,以基于原子结构和成分以及晶粒度和形状来预测塑性行为。金属的可塑性取决于埃尺寸的晶体缺陷(称为位错)和微米尺寸的特征,如颗粒结构。
英文摘要
Computer simulations are not yet able to predict the plastic behaviour of crystalline materials and so cannot predict the toughness or strength of a bulk polycrystalline material or the material layers used in micro-devices. As a result, new alloys and material layers with targeted mechanical properties are synthesized by a process which depends largely on intuition and trial and error not sound engineering analysis. The goal of this research program is to develop a comprehensive multiscale simulation framework to predict plastic behaviour based on atomistic structure and composition and grain size and shape. Plasticity in metals depends upon angstrom-sized crystal defects called dislocations and micron-sized features such as grain structure.
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Computing Energy Advancement: Computational Engineering for Geomechanics and Fracture
  • 批准号:
    RGPAS-2021-00027
  • 项目类别:
    Discovery Grants Program - Accelerator Supplements
  • 资助金额:
    $2.91万
  • 财政年份:
    2022
  • 负责人:
    Gracie, Robert
  • 依托单位:
Computing Energy Advancement: Computational Engineering for Geomechanics and Fracture
  • 批准号:
    RGPIN-2021-04027
  • 项目类别:
    Discovery Grants Program - Individual
  • 资助金额:
    $2.62万
  • 财政年份:
    2022
  • 负责人:
    Gracie, Robert
  • 依托单位:
Computing Energy Advancement: Computational Engineering for Geomechanics and Fracture
  • 批准号:
    RGPAS-2021-00027
  • 项目类别:
    Discovery Grants Program - Accelerator Supplements
  • 资助金额:
    $2.91万
  • 财政年份:
    2021
  • 负责人:
    Gracie, Robert
  • 依托单位:
Combating the tyranny of scales in simulation with reduced order modelling
  • 批准号:
    556294-2020
  • 项目类别:
    Alliance Grants
  • 资助金额:
    $2.38万
  • 财政年份:
    2021
  • 负责人:
    Gracie, Robert
  • 依托单位:
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