D1: Characterization and modelling of the thermomechanical material behavior of 3D textilereinforced aluminium matrix composites (3D DF/Al-MMC)

D1：3D 织物增强铝基复合材料 (3D DF/Al-MMC) 热机械材料行为的表征和建模

• 批准号: 57157254
• 负责人: Professor Dr.-Ing. Werner Hufenbach
• 金额: --
• 依托单位: Institut für Leichtbau und Kunststofftechnik
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2008
• 资助国家: 德国
• 起止时间: 2007-12-31 至 2013-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/57157254?language=en
• 关键词: D1; Characterization; modelling; thermomechanical; material

In order to exploit the lightweight potential of 3D textile-reinforced carbon-fibre aluminium composites (3D CF/Al-MMC) for thermomechanical loadings, both robust manufacturing technologies and reliable methods for structural and failure analyses are requested. Goal of the project is the development of a modified gas pressure infiltration (mGPI) technology suitable for prototype and small-batch production as a complement to die-casting technology for large-batch production. For a novel mGPI unit, a refined process control, enabling reduced temperature exposures, adapted fibre preform preheating and higher cooling rates, is developed to ensure a reproducible high-quality manufacture of CF/Al-MMC on the basis of specially coated textile preforms (non-crimp knitted fabrics) and modified Alalloys. For a future structural analysis and proof of strength of CF/Al-MMC lightweight components, the development and experimental validation of material and structural models as well as failure criteria on a mesoscopic and macroscopic scale, taking into account the heterogeneous and anisotropic material characteristic, are aimed at. Material properties and model parameters required for the material and failure models are determined in single and multi-axial stress experiments using in-situ tomography on planar and tubular specimens at different temperatures.

为了利用3D纺织 - 增强碳纤维铝复合材料（3D CF/AL-MMC）的轻质潜力，用于热力学负载，请求强大的制造技术和可靠的结构和故障分析方法。该项目的目标是开发适用于原型和小批量生产的改性气压渗透（MGPI）技术，以作为用于大批量生产的压铸技术的补充。对于一个新型的MGPI单元，开发了一种精制的工艺控制，可以降低温度暴露，适应于纤维的预热预热速率和更高的冷却速率，以确保根据特殊涂层的纺织品（非脆皮织物）（非刺激性织物）（非涂抹织物）和改良的Alolaloys和Modified Alolaloys和Modified Alolaloys确保可重复可重复的高质量的CF/AL-MMC制造。为了进行未来的结构分析和CF/Al-MMC轻量级组件的强度证明，材料和结构模型的开发和实验验证以及在介质和宏观尺度上的失败标准，同时考虑了异质和各向异性材料的特征。材料和故障模型所需的材料特性和模型参数是在不同温度下的平面和管状标本的原位层析成像中确定的。