通过原位拉伸的方法,在同一位置进行高低倍拍摄,观察裂纹源所在的位置,分析裂纹源与组织的位置关系。
By using the in-situ stretching method, high and low magnification shooting was conducted at the same position to observe the location of the crack source and analyze the positional relationship between the crack source and the tissue.