INFORMAL PAYMENTS BY PATIENTS IN CROATIA: BENIGN CUSTOM OR DETRIMENTAL RESIDUE FROM SOCIALISM?



Fatigue analysis of aluminum drill pipes

An experimental program was performed to UC-II Collagen investigate the fundamental fatigue mechanisms of aluminum drill pipes.Initially, the fatigue properties were determined through small-scale tests performed in an optic-mechanical fatigue apparatus.Additionally, full-scale fatigue tests were carried out with three aluminum drill pipe specimens

read more