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FDM结构的设计和工艺指南，这些指南针对特定的荷载情况进行调整，并应用于轻质部件的部分加固。根据加固结构的设计，应实现强度和刚度的目标增加，并尽可能减轻重量以实现轻量化应用。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，FDM部件的设计也应变化。应通过不同的机械试验（拉伸、压缩、弯曲、冲击等）进行强度特性分析。从而对于FDM部件的当前内部部件结构可以确定不同载荷情况下的相应强度和刚度。因此，将制定FDM结构的特定负载设计和工艺指南。此外，将根据FDM部件的相应内部部件结构对强度进行建模。该模型将被用来支持针对当前载荷情况的强度分析。最后，将在真实的轻量化零件上验证设置设计和工艺指南。为此，应生产由两种不同聚合物组成的混合部件，使得FDM结构可用作部分增强件。将使用GITBlow部件作为真实的部件，在该部件处，较薄的材料区域被加强。对于该混合部件，将进行不同的机械测试。

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.