中文摘要：

实验研究了轴向色差测试技术用于动态损伤样品截面形貌测量的可行性,对材料动态损伤的损伤程度进行了高精度的表征与量化.首先,采用基于白光轴向色差的表面轮廓测试技术,对动态冲击实验“软回收”得到的样品截面进行测量;然后,对测试数据进行重构,获得了样品截面二维图像和表面三维轮廓形貌.最后,针对该测试方法获得的数据建立了损伤计算方法,并利用该方法计算了材料的损伤量.结果表明：该技术能对样品截面进行大范围连续测量（6.9 mm×9.999 mm）,获得样品截面清晰的三维形貌,并且将损伤度曲线的分辨率提高到3 m.得到的结果显示：基于白光轴向色差的测试技术能实现材料动态损伤的大范围、高精度连续测量,测试工作量小,计算损伤的方法简单,能有效地提高损伤度曲线的分辨率.

英文摘要：

The feasibility of morphologic measurement for Dynamic Damaged Materials by the white light axial chromatic aberration method was explored,and the internal dynamic damage of materials was characterized and quantized precisely.First,the surface profile measurement technique based on white light axial chromatic aberration was used to measure the cross-section of samples recovered softly from dynamic impact experiments.Then,the cross-section image and 3D surface topography were obtained by reconstruction of the test data.Finally,based on the test data,a new method to calculate the damage of samples was established and the damage curve of the samples was calculated.The results indicate that the axial chromatic aberration measurement can measure a wide range cross-section of the sample（6.9 mm× 9.999 mm） without disconnection and can receive a clearly three-dimensional morphology of the sample cross-section.The resolution of the damage curve can be improved to 3 m.It means that the white light axial chromatic aberration method used to measure the dynamic damage sample is effectively.It can implement a continuous measurements with large-scale and high-precision and show its characteristics in smaller operation,simpler calculation and higher resolution.