Concrete is a typical heterogeneous quasi-brittlematerial used in engineering, and its fracture process is very complex.
混凝土是一种典型的非均匀准脆性材料，其断裂过程是非常复杂的。
2
It is a brittlematerial and heterogeneous discontinuous body. The process of its failure is one of initiation of inner cracks of the rock followed by their propagation, connection and link up.