... 14 05 2008 The inelastic behavior of a pipe subjected to steady axial force and cyclic bending moment, such as shakedown, plastic fatigue, ratcheting and plastic collapse, is studied. By using two parameters c and d , which indicate the elasto-plastic interfaces of beam cross...

... accumulation and their influences on ratcheting failure is presented. Keywords: Ratcheting, pipe-bends, bend radius, strain accumulation, In-plane bending, ABAQUS NOMENCLATURE Ci parameters used in Chaboche Model D Outer diameter of the pipe in mm E Young s modulus M bending moment PD design pressure R bend...

... for their behavior. This needs extensive understanding and study for their behavior. The available material models and FEA solutions do not accurately predict the failure phenomenon due to ratcheting in pipe bends. This resulted in the presented study on this phenomenon. 1 Copyright © 2005 by ASMESTUDIES ON ONSET...

... of the composites. ORDS matrix composite; Particulate; Ratcheting; Uniaxial; emperature. ODUCTION lic accumulation of inelastic deformation, which is called heting, will occur in the materials subjected to a cyclic ng with non-zero mean stress. The ratcheting behavior is at importance to the design and safety...