Strength hardening and damage mechanism of semiwetted coal under cyclic loads with different initial stress levels.

At the same time, the mass fraction of all coal samples shows an increasing trend with the increase of particle size.

also in 63,971 other papers

When the initial stress is 50% of F UCS , the loading and unloading elastic moduli in the first cycle show a decreasing trend and are significantly lower than in the subsequent cycles.

also in 47,180 other papers