TESTING STIFFNESS BASED ON ACOUSTIC EMISSION FOR PDC, PCBN or other hard or superhard materials

摘要

1. Testing apparatus based on the acoustic emission, comprising: a pressure chamber having a first chamber and a second chamber, the first chamber is adapted to increase the pressure to the first pressure and the second chamber is adapted to increase the pressure to a second pressure; rock sample, placed in the pressure chamber, wherein the rock sample comprises a first portion and a second portion, the first portion is exposed to the first pressure and the second portion is exposed to a second pressure; iodine or more acoustic sensors coupled with a sample of the rock to transmit signals, wherein the second pressure is increased to a threshold pressure at a rate of pressure increase, the second pressure is maintained at the threshold pressure level for a time period, and the second pressure is reduced with a pressure reduction rate, aakusticheskie sensors define one or more acoustic events occurring in the sample porody.2 mountain. Testing apparatus based on acoustic emission according to claim 1, wherein the first pressure is maintained at a level substantially mountain porody.3 confining pressure. Testing apparatus based on acoustic emission according to claim 1, wherein the acoustic sensor is connected with the sample porody.4 mountain. Testing apparatus based on the acoustic emission according to claim 1, further comprising a first fluid and a second fluid, wherein the first fluid is placed in the first chamber and the second fluid is placed into the second chamber, wherein at least a portion of the second fluid