裂纹扩展量的检测技术

Monitoring Technique of Crack Propagation

本文介绍能直接测量裂纹扩展量的涡流探头自动跟踪裂纹法及裂纹扩展计法。它们的共同特点是标定曲线与试件材料无关,并具有通用性。实践表明这些方法是有效和可靠的,且精度较高,也容易实现数据采集与处理自动化。

Direct measuring methods for ctack propagation are studied. Amoung these methods, the automatic monitoring eddy-current instrument and Krak-gage are particularly emphasized. It is shown that these two methods are effective reliable, accurate and independent of specimen materials. Automatic data collecting and processing can also be easily achieved.