Electrodynamic Linear torsion testing machine

材料的疲劳性能通常由材料性能及其微观结构、制造参数和施加的加载条件组成。动应力常常是部件失效的原因。然而，在实验室中很难再现构件在真实条件下存在的复杂应力状态。多轴应力条件出现在各种应用领域，例如医疗技术（例如，髋关节假体），能源技术(例如，风力涡轮叶片)、航空（如尾翼）和体育产业（如跑鞋）由于缺乏测试技术，通常研究单轴载荷条件，并由此得出多轴载荷下的性能。这一过程通常基于高度简化的假设，很少与现实相符。除了实际的测试技术之外，对多轴载荷下的损伤过程和相应的材料建模也缺乏了解。因此，部件没有得到优化设计，必须采用高安全系数。因此，在许多应用领域，目前还无法实现更加可持续和资源高效的组件设计以及一致的轻量级结构。这一差距将被拟议的测试设备所弥补，它将加强研究活动。所申请的大型研究设备将能够在静态和动态循环载荷下进行多轴试验，力可达10千牛，扭转力矩可达100纳米。集成的热像仪能够检测初始材料损伤以及自适应频率控制的可能性，以扩大科学解释的可能性，并确保更有效和更快的材料测试。此外，将电动试验机连接到连续的、可追溯的材料开发过程链，可以实现连续的、标准化的数据访问。这为更快、更高质量地评估新材料和新工艺创造了新的（研究）机会。例如，可以将工艺数据、配方和材料特性联系起来，并使用数字方法识别复杂的关系。这考虑到目前日益复杂的材料配方（例如，使用回收和生物基材料），新的制造技术，更短的开发周期和更长的产品寿命的趋势。

The fatigue behavior of a material is generally composed of the material properties and its microstructure, the manufacturing parameters, and the applied loading conditions. Dynamic stresses are often the cause of component failure. However, it is difficult to reproduce the complex stress state that exists under real conditions on the component in the laboratory. Multi-axial stress conditions occur in various application areas, for example in medical technology (e.g., hip prostheses), energy technology (e.g,. wind turbine blades), aviation (e.g., empennage) and the sports industry (e.g., running shoes) Due to a lack of testing technology, uniaxial loading conditions are often investigated and the behavior under multi-axial loading is derived from this. This procedure is usually based on highly simplified assumptions that rarely correspond to reality. In addition to the actual testing technique, there is also a lack of understanding of the damage processes that occur under multi-axial loading and the corresponding material modeling. As a result, components are not optimally designed, and high safety factors must be applied. A more sustainable and resource-efficient component design as well as consistent lightweight construction can thus currently not be implemented in numerous application areas. This gap is to be closed by the proposed testing device and it will enhance the research activities. The large-scale research equipment applied for will enable multi-axial testing of specimens and components under static and dynamic cyclic loading with forces of up to 10 kN and torsional moments of up to 100 Nm. The integrated thermographic camera enables the detection of initial material damage as well as the possibility of adaptive frequency control to expand the scientific interpretation possibilities and ensure more efficient and faster material testing. In addition, the connection of the electrical dynamic testing machine to a continuous, traceable process chain of material development enables continuous, standardized data access. This creates new (research) opportunities for faster and higher-quality evaluation of new materials and processes. For example, process data, formulations and material properties can be linked, and complex relationships identified using digital methods. This takes into account the current trends towards increasingly complex material formulations (e.g., the use of recycled and bio-based materials), new manufacturing technologies, ever shorter development cycles and longer product lifetimes.