工程塑料环境因素与载荷应力耦合作用试验装置研究

目的 设计一种能够模拟工程塑料实际服役工作环境的试验装置，在多型自然环境中，构建兼具环境因素侵蚀与载荷应力耦合作用的试验条件。方法 研制工程塑料环境因素与载荷应力协同作用试验装置，采用包括拉伸加载、弯曲加载、控制系统等组件的模块化设计，实现0.01~16 Hz加载频率的拉伸及弯曲载荷，最大1 550 kg的拉伸载荷，最大375 kg的弯曲载荷。结果 将研制完成的试验装置置于多型自然环境下对试验施加恒定和交变载荷，以真实模拟工程塑料实际服役中的环境因素与载荷应力协同作用。结论 试验装置制造加工难度小，结构稳定可靠，可用于评价和研究工程塑料等系列类型材料的环境损伤性能演变。

Test Device for Engineering Plastics under Coupling Effect of Environmental Factor and Load Stress

The work aims to design a test device to simulate the actual service working environment of engineering plastics, and construct the test conditions with the coupling effect of environmental factor erosion and load stress in a multi-type natural environment. The test device for engineering plastics under the synergistic effect of environmental factors and load stress was developed, and the modular design including tensile loading, bending loading, control system and other components was adopted to achieve tensile and bending loads of 0.01~16 Hz loading frequency, with a maximum tensile load of 1 550 kg and a maximum bending load of 375 kg. The developed test device was placed in a multi-type natural environment to apply constant and alternating loads to the test, so as to truly simulate the synergistic effect of environmental factors and load stress in the actual service of engineering plastics. The test device is easy to manufacture and process, with stable and reliable structure, which can be used to evaluate and study the evolution of environmental damage performance of engineering plastics and other types of materials.