Materials Engineering - Metals and alloys - Multiscale deformation modelling of small scale mechanical tests
材料工程-金属和合金-小规模机械测试的多尺度变形建模
基本信息
- 批准号:2276274
- 负责人:
- 金额:--
- 依托单位:
- 依托单位国家:英国
- 项目类别:Studentship
- 财政年份:2019
- 资助国家:英国
- 起止时间:2019 至 无数据
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
One of the aims of the Prosperity Partnership project is to accurately evaluate the mechanical properties of a large number of steels from small scale tests. An important aspect of mechanical behaviour during steel making is anisotropic yield and work-hardening caused by rolling processes. Both hot and cold rolling result in metallurgical texture which effects mechanical properties and subsequent forming processes. This is a particular issue for thin sheet steels used for metal forming such as deep drawing grades.As the size of the deforming material becomes smaller, the influence of microstructure becomes greater and continuum modelling approaches become less accurate. Modelling deformation of the microstructure using crystal plasticity finite element modelling (CPFEM) allows predictions of anisotropic deformation and damage to be made.A continuum modelling approach is already being used in the Prosperity Partnership; however, combining CPFEM with continuum deformation models for small scale mechanical tests such as small punch and shear compression will allow a more accurate evaluation of micromechanical behaviour. These models can then be applied to larger scale deformation processes such as rolling using a multiscale approach which can then be applied to larger scale deformationThe primary aim of the project is to develop a CPFEM model for specific grades of steel. The model will be validated against small scale test data, using a multiscale approach based on representative volume elements (RVEs) with microstructural data such as grain and phase morphology. This approach will be used to predict damage in small scale tests as well as being used to evaluate the evolution of anisotropy during single and multi-stage deformation. The aim will be to ultimately apply the model to different sized rolling geometries, allowing predictions of the effects of scaling up the rolling processes. Initially the model will be applied to deformation at ambient temperature, with scope to extend to higher temperatures later. The multiscale approach will complement continuum models being developed as part of the Prosperity Partnership.
繁荣伙伴关系项目的目标之一是从小规模试验中准确评估大量钢材的机械性能。炼钢过程中机械性能的一个重要方面是轧制过程引起的各向异性屈服和加工硬化。热轧和冷轧都会产生影响机械性能和后续成形工艺的冶金织构。对于用于金属成形的薄板钢(如深冲级),这是一个特别的问题。随着变形材料的尺寸变小,微观结构的影响变大,连续体建模方法变得不那么准确。使用晶体塑性有限元模型(CPFEM)对微观结构的变形进行建模,可以预测各向异性变形和损伤。连续体建模方法已经在繁荣伙伴关系中使用;然而,将CPFEM与连续体变形模型结合用于小规模机械试验,如小型冲压和剪切压缩,可以更准确地评估微观力学行为。然后,这些模型可以应用于更大规模的变形过程,如使用多尺度方法的轧制,然后可以应用于更大规模的deformationThe项目的主要目的是开发一个CPFEM模型的特定等级的钢。该模型将验证小规模的测试数据,使用多尺度方法的基础上的代表性体积元素(RVE)的微观结构数据,如晶粒和相形态。这种方法将被用来预测在小规模的测试,以及被用来评估在单阶段和多阶段变形的各向异性的演变。其目的是最终将该模型应用于不同尺寸的轧制几何形状,从而预测按比例放大轧制过程的影响。最初,该模型将被应用于在环境温度下的变形,范围扩展到更高的温度后。多尺度方法将补充作为“繁荣伙伴关系”一部分正在开发的连续体模型。
项目成果
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其他文献
吉治仁志 他: "トランスジェニックマウスによるTIMP-1の線維化促進機序"最新医学. 55. 1781-1787 (2000)
Hitoshi Yoshiji 等:“转基因小鼠中 TIMP-1 的促纤维化机制”现代医学 55. 1781-1787 (2000)。
- DOI:
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LiDAR Implementations for Autonomous Vehicle Applications
- DOI:
- 发表时间:
2021 - 期刊:
- 影响因子:0
- 作者:
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吉治仁志 他: "イラスト医学&サイエンスシリーズ血管の分子医学"羊土社(渋谷正史編). 125 (2000)
Hitoshi Yoshiji 等人:“血管医学与科学系列分子医学图解”Yodosha(涉谷正志编辑)125(2000)。
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Effect of manidipine hydrochloride,a calcium antagonist,on isoproterenol-induced left ventricular hypertrophy: "Yoshiyama,M.,Takeuchi,K.,Kim,S.,Hanatani,A.,Omura,T.,Toda,I.,Akioka,K.,Teragaki,M.,Iwao,H.and Yoshikawa,J." Jpn Circ J. 62(1). 47-52 (1998)
钙拮抗剂盐酸马尼地平对异丙肾上腺素引起的左心室肥厚的影响:“Yoshiyama,M.,Takeuchi,K.,Kim,S.,Hanatani,A.,Omura,T.,Toda,I.,Akioka,
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