裂纹构造 meaning in English
ice structure
Examples
- Barrier cracks cannot stop the extending of a fracture , and the strength of the sample is reduced by almost one magnitude because of the existing barrier cracks . there are great differences of ae distribution between specimens with non - penetrate crack and specimens with penetrate crack . as for penetrate crack , ae occurs near the two end of the crack , and for non - penetrate crack , crack , ae occurs near the two end of the crack , and for non - penetrate crack , ae occurs near the front edge of crack , which can be explained well by the theory of 3 - d fracture ; ae distribution near the outer part of collinear crack is similar with that of the end of penetrate crack , and inner part of collinear cracks will run - through with high loads
关于预制裂纹系对岩石破裂的影响,集中讨论了:空障碍体构造不能阻止主裂纹的扩展,反而会使岩石的破裂强度降低近一个量级;由于构造的不同,非穿透切口样品和穿透切口样品的声发射空间分布特点有本质区别,穿透切口样品的微破裂在切口两端发育,而非穿透切口样品的微破裂在切口两端之间切口前缘处发育,这用三维破裂理论可以很好地解释;含共线构造的岩石,裂纹外端的声发射分布与单裂纹构造中裂纹端部的声发射分布相似,裂纹内端声发射有密集分布,在应力达到一定水平时,内端部发生错断,而不是贯通。