SHPB 模块化高低温测试系统设计

In order to efficiently and reliably obtain the mechanical properties of materials at high and low temperatures, a portable and modular high-low temperature testing system was established based on a typical Split Hopkinson Pressure Bar. The system consists of an automatic loading rod assembly system, a non-contact high-temperature heating system, and a high-efficiency low-temperature environmental chamber. It enables the automated loading of specimens, reducing the temperature difference effects caused by manual operations. Compared to traditional high-low temperature testing methods, the high-temperature system uses non-contact heating, reducing the influence of the temperature field of the loading rod on the experimental results. The low-temperature environmental chamber allows for simultaneous cooling of multiple samples and enables the replacement and retrieval of test specimens without opening the chamber, greatly improving testing efficiency. Based on the high-low temperature testing system, dynamic compression strength tests were conducted on different materials under different strain rates and temperature conditions, resulting in accurate and stable test results.