在对数据处理和变载技术研究的基础上 ,采用C + +编程 ,在X86系列微机上建立了一套新的功能先进的计算机辅助疲劳裂纹扩展速率综合测试、处理与分析系统 .与其它系统相比 ,该系统在测试精度、信息获取、试验周期等方面大大改进 ,可进行恒ΔP法、恒ΔK法以及降ΔK升ΔK法等多种载荷与应力强度因子幅的控制试验 ,并在腐蚀疲劳裂纹扩展测试中得到成功应用 ,说明该系统测试有效 ,功能可靠 Based on the research of data processing and transformation technology, a new set of advanced computer-aided fatigue crack growth rate integrated testing, processing and analysis system has been set up on the X86 series microcomputer with C + + programming.Compared with other systems Compared with the control system, the system has been greatly improved in terms of test accuracy, information acquisition and test cycle, and can be used to control various load and stress intensity factors such as constant ΔP method, constant ΔK method, and ΔK ΔK method, Fatigue crack growth test has been successfully applied, indicating that the system test is effective and reliable