SEDL / STP / STP520-EB / STP38878S

Kinetic Deformation Criteria of Cyclic Fracture at High Temperature

Serensen, SV
Mechanical Engineering Research Institute, Moscow-Centre,

Schneiderovitch, RM
Mechanical Engineering Research Institute, Moscow-Centre,

Gusenkov, AP
Mechanical Engineering Research Institute, Moscow-Centre,

Pages: 8    Published: Jan 1973

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Abstract

A strain range partitioning method for the analysis of failure by the interaction of creep and fatigue is proposed. A conception is made of the onesided deformation (mean strain) to account for part of the creep damage; the time (and temperature) dependent behavior of the strain to failure is used to modify the common low-temperature low-cycle fatigue equations. Data from 18Cr, 8Ni stainless steel are used as a basis for demonstrating the method. A conventional linear damage summation technique is used for comparison with the results of the proposed method.