Development and modeling design and process guidelines for FDM-structures for the partial reinforcement of hybrid structures

本项目的目的是确定针对特定荷载情况的fdm结构的设计和工艺指南，并用于对轻质部件进行部分加固。根据加固结构的设计，应实现强度和刚度的有针对性的增加，并尽可能降低轻量化应用的重量。除了通过使用不同的层生成参数来调整fdm部件内部结构的特定载荷情况外，fm部件的设计也应有所不同。应通过不同的力学试验(拉伸、压缩、弯曲、冲击等)对强度特性进行分析，以便针对当前fdm部件的内部结构确定不同载荷情况下的各自强度和刚度。因此，将制定一套针对最不发达国家结构的具体负荷设计和工艺准则。此外，还将根据fdm部件各自的内部结构对强度进行建模。此模型将作为针对当前载荷情况的强度分析的支持。最后，将在真实的轻型零件上验证设置设计和工艺指南。为此，应制造由两种不同聚合物组成的混杂组件，以便可以将FDM型结构用作部分增强。作为真正的部件，将使用GITBlow部件，其中较薄的材料区域被加固。对于该混合动力部件，将进行不同的力学测试。

The aim of this project is the determination of design and process guidelines for FDM-structures, which are aligned for specific load cases and shall be used for a partial reinforcement of lightweight parts. According to the design of the reinforcement structure a targeted increase of the strength and the stiffness shall be achieved, with the lowest weight possible for the lightweight application. In addition to the adjustment for specific load cases of the inner part structure of the FDM-part by using different parameters for the layer generation, the design of the FDM-part shall be varied.The analysis of the strength properties shall take place by means of different mechanical tests (tensile, compression, flexural, impact, etc.), so that the respective strength and stiffness for different load cases can be determined for the present inner part structure of the FDM-part. As a result a set-up of specific load design and process guidelines for the FDM-structured will be made. Additionally a modeling of the strengths according to the respective inner part structure of the FDM-parts will take place. This modeling shall be used as a support for the strength analysis against the present load cases.At last the set-up design and process guidelines will be verified on a real lightweight part. For this a hybrid component consisting of two different polymers shall be produced, so that the FDM-structure can be used as a partial reinforcement. As a real component a GITBlow part will be used, whereat the thinner material area is reinforced. For that hybrid component different mechanical tests will be made.