Functional intrinsic hybrid composites with active elements and structured metal surfacesContinuation: Efficient heat and load transport for fast rate activation - dynamic characterization and multi scale modelling

在先前的项目(DFG404403710 Funktionale Intrinsische Hybriverbunde)中，选择性电化学腐蚀用于镍钛形状记忆合金(SMA)的表面改性和增加基体的弹性应变被证明有助于增加载荷传递，并建立了一套定量实验表征SMA线材和混杂复合材料(HC)热弹性性能的方法。拟议的后续项目将追求三个相互作用的主要目标：1)开发一种全新的概念，通过在界面区域引入纳米级雕刻功能铝箔，通过精确调整聚合物基质的热机械性能，提高活性碳氢化合物中SMA-聚合物界面的热机械阻力。2)物理激励的多尺度模拟，以从根本上了解SMA-聚合物界面在循环热机械载荷作用下的热机械行为。3)基础研究了附加制造技术的可能性和局限性，即用于制造具有定制特性的HC模块的立体光固化技术。该项目分为三个相互作用的工作包，(I)表面改性、开发用于负载转移的功能性铝箔以及在微观尺度上表征体表相互作用(Lead：CAU)，(Ii)HC模块的HC设计和添加剂制造(Lead：IVW)和(III)表征和多尺度建模(Lead：IVW)。研究方法侧重于过程-结构-性能关系(PSPR)的实验表征、建模和理解，方法是：基于物理激励模型和沿HC长度尺度的专用样品实验，建立PSPR的定量表示。通过在全HCS上的实验验证了这种工艺-结构-性能关系。根据不同应用程序的需求，使用这些知识对整个HC设计进行基于知识的迭代开发。

In the previous project (DFG404403710 Funktionale intrinsische Hybridverbunde), selective electrochemical etching for surface modification of nickel-titanium shape memory alloys (SMA) and the increase of the elastic strain of the matrix was proven useful for increased load transfer and a complete set of methods for quantitative experimental characterization of the thermoelastic properties of SMA wires and hybrid composite (HC) was established. The proposed follow-up project will pursue three mutually interacting main objectives: 1) The development of a fundamentally new concept to improve the thermo-mechanical resistance of the SMA-polymer interface in an active HC through a precise adjustment of the thermo-mechanical properties of the polymeric matrix by introducing nanoscale-sculptured functional Al foils in the interface region. 2) Physically motivated multiscale modelling, for a fundamental understanding of the thermo-mechanical behavior of the SMA-polymer interface under cyclic thermo-mechanical loading. 3) Fundamental investigation of the possibilities and limitations of additive manufacturing techniques, namely Stereolithography for the fabrication of HC modules with tailored properties. The project is divided in three interacting work packages, (I) Surface modification, development of functional Al-foils for load transfer and characterization of bulk-surface interactions on the micro-scale (Lead: CAU), (II) HC design and additive manufacturing of HC modules (Lead: IVW) and (III) Characterization and multiscale modelling (Lead: IVW). The research methodology focuses on the experimental characterization, modelling and understanding of the process-structure-property relation (PSPR) by: Establishing a quantitative representation of the PSPR based on physically motivated models and experiments on dedicated specimen along the length scale of the HC. Validating this process-structure-property relation with experiments on full HCs. Using the knowledge for an iterative knowledge-based development of the overall HC design depending on the requirements from different applications.