METHOD FOR DETERMINING OF THE STRESSES STRENGTH CRITICAL FACTOR WITH A SOLID BODY TRANSVERSE SHEAR Russian patent published in 2018 - IPC G01N3/24 

FIELD: measurement technology.

SUBSTANCE: invention relates to a critical stress intensity factor determining methods for transverse shear, which is realized with cutting of a solid material. To the parallelepiped shaped sample a shear load is applied, which is created by longitudinal cutting of the sample with a cutter with a front angle equal to the given pair of "cutter – processed material" friction angle, which front face width and height exceeds the width b and thickness a of a cut layer, respectively, and the critical stress intensity factor K_IIc is determined from the following relationship: where P_sh.max is the maximum cutting force.

EFFECT: possibility to increase the critical stress intensity factor determining accuracy for transverse shear by giving the cutting force, id est, the shifting load position with an effect angle equal to zero.

1 cl, 5 dwg