开放式PRMMCs损伤演化分析软件设计与研发

Nowadays in the era of material design, the fundamental research on integrated design of key material has attracted worldwide attention. As the core of industrial innovation design and digital design, CAE technology plays an important role in research of materials design. Invigorating independent research of theory and technical of material analysis, and independent development of the corresponding CAE software, is consistent with the country dreams of improving industrial international competitive level by improving capability of independent innovation and mastering core technologies..On the focus of particle reinforced metal matrix composites (PRMMCs) used increasingly widely, which attract a lot of science scholars in materials science and engineering science, developing an effective open CAE software system that conducts mechanics analysis, molding analysis and performance simulation of real PRMMCs, is of academic value and profound significance in engineering. Based on CPU-GPU heterogeneous HPC system, the project focus on developing an effective open CAE software system for modeling and simulating PRMMCs, in which the model of “Material model analysis + Early analysis + Damage analysis” is used to realize an open dynamic assembly in three-stage of material mechanics analysis, FEM early analysis and damage simulation with hybrid grids. An open CAE software system supporting multi-person collaborative development from multi-organization, will be developed by building dynamic open interfaces and management mechanisms, to complete large scale (finite element model, containing millions of degrees of freedom and millions of micro-structures) structural analysis and damage evolution analysis of micro-structures in user-specific PRMMCs for user-specific physical problems with high performance computers.

材料设计时代的今天，在关键材料集成设计基础研究方面吸引了世界各国的关注，CAE技术在材料设计研究方面扮演着重要的角色。加强我国材料分析理论和技术的研究，鼓励国产CAE软件自主开发，跟我国通过提高自主创新能力，提升产业国际竞争水平的强国梦是一致的。因此，针对广泛应用、成为国内外材料科学和工程科学学者们研究热点的颗粒增强金属基复合材料(PRMMCs)，专门开发一套能准确进行宏细观力学分析的CAE软件系统，具有一定的学术价值和深远的工程意义。.本项目计划构建一套开放式PRMMCs宏细观分析CAE系统，基于CPU+GPU混合异构HPC系统，采用“材料模型+初分析+损伤分析”模式，实现PRMMCs材料模型分析、有限元初分析和双重尺度网格损伤分析的三阶段分析动态装配。建立支持多人多组织协同开发的软件系统，在高性能计算机上实现大规模(含有数百万自由度和百万微结构)的宏观结构分析和细观材料损伤演化分析。

面对我国大力发展国产工业软件产业的契机，瞄准材料设计研究这个细分领域，针对广泛应用、成为国内外材料科学和工程科学学者们研究热点的颗粒增强金属基复合材料(PRMMCs)，本项目开发了一套能准确进行宏细观力学分析的CAE软件系统，期望借此加强我国材料分析理论和技术的研究，增强国产CAE软件自主开发，提高我国的自主创新能力，为提升产业国际竞争水平的强国梦贡献微薄之力。.本项目基于CPU+GPU混合异构HPC系统，构建了一套开放式PRMMCs宏细观分析CAE系统，实现了PRMMCs材料模型分析、有限元初分析和双重尺度网格损伤分析的三阶段分析。建立了支持多人多组织协同开发的软件系统，在高性能计算机上实现了大规模(含有数百万自由度和百万微结构)的宏观结构分析和细观材料损伤演化分析。.为了模拟含微结构材料的损伤演化分析，软件中构建了一系列包含各种微结构的新应力杂交单元：含界面裂纹应力杂交元、含界面裂纹和基体裂纹的应力杂交元、含孔洞的 Voronoi 单元、两种新的含裂纹的损伤 Voronoi 孔洞单元模型。

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