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

具有活性元素和结构化金属表面的功能性本征杂化复合材料继续：用于快速激活的高效热量和负载传输 - 动态表征和多尺度建模

• 批准号: 404403710
• 负责人: Professor Dr. Rainer Adelung
• 金额: --
• 依托单位: Leibniz-Institut für Verbundwerkstoffe (IVW)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/404403710?language=en
• 关键词: Functional; intrinsic; hybrid; composites; active

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.

在之前的项目（DFG 404403710 Funktionale intrinsische Hybridverbunde）中，镍钛形状记忆合金（SMA）表面改性的选择性电化学蚀刻和基体弹性应变的增加被证明有助于增加载荷传递，并建立了一套完整的方法，用于SMA丝和混合复合材料（HC）的热弹性性能的定量实验表征。拟议的后续项目将追求三个相互作用的主要目标：1）开发一个全新的概念，通过在界面区域引入纳米尺度雕刻的功能铝箔，精确调节聚合物基体的热机械性能，提高活性HC中SMA-聚合物界面的热机械阻力。2)物理动机的多尺度建模，用于基本了解SMA-聚合物界面在循环热机械载荷下的热机械行为。3)对增材制造技术的可能性和局限性进行基础研究，即用于制造具有定制属性的HC模块的立体光刻。该项目分为三个相互作用的工作包，（I）表面改性，功能铝箔的开发，用于负载转移和微观尺度上的本体-表面相互作用的表征（牵头：CAU），（II）HC设计和HC模块的增材制造（牵头：IVW）以及（III）表征和多尺度建模（牵头：IVW）。研究方法的重点是实验表征，建模和理解的过程-结构-性能关系（PSPR）：建立一个定量表示的PSPR的基础上，物理动机的模型和实验专用标本沿着长度尺度的HC。验证这种过程的结构与性能的关系与实验上充分HC。根据不同应用的要求，使用知识进行基于知识的整体HC设计的迭代开发。