Electrodynamic Linear torsion testing machine

材料的疲劳行为一般由材料的性能和微观结构、制造参数和施加的载荷条件组成。动应力通常是元件失效的原因。然而，在实验室中很难再现部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，例如在医疗技术(例如，髋关节假体)、能源技术(例如，风力机叶片)、航空(如尾翼)和体育工业(如跑鞋)由于缺乏测试技术，经常需要研究单轴加载条件，并由此得出多轴加载下的行为。这一程序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外，还缺乏对多轴加载下发生的损伤过程和相应的材料模型的了解。因此，部件的设计不是最优的，必须采用高安全系数。因此，目前无法在许多应用领域实施更可持续和更节约资源的部件设计以及一致的轻量化结构。这一差距将通过拟议的测试设备来填补，它将加强研究活动。申请的大型研究设备将能够在静动态循环载荷下对试件和部件进行多轴试验，载荷最高可达10kN，扭矩最高可达100 Nm。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，将电动动态试验机连接到材料开发的连续、可跟踪的过程链上，可以实现连续、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，可以使用数字方法连接工艺数据、配方和材料属性，并识别复杂的关系。这考虑到目前越来越复杂的材料配方(例如，使用回收和生物基材料)、新的制造技术、越来越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.