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Structural Engineering and Mechanics
  Volume 6, Number 3, April 1998, pages 327-337
DOI: http://dx.doi.org/10.12989/sem.1998.6.3.327
 


Endochronic prediction for the mechanical ratchetting of a stepped beam subjected to steady tension and cyclic bending
Pan WF, Yang YS, Lu JK

 
Abstract
    In this paper, the first-order ordinary differential constitutive equations of endochronic theory are incorporated into finite element formalism. A theoretical investigation is performed on the ratchetting effect of a stepped beam subjected to steady tension and cyclic bending. Experimental data of lead alloy found in literature are used for comparison. Those data reveal that the endochronic prediction yields more adequate results than those predictions using the plasticity models with isotropic hardening or kinematic hardening, as employed by Hardy, et al. (1985).
 
Key Words
    endochronic theory, finite element formalism, stepped beam, cyclic bending
 
Address
Pan WF, Natl Cheng Kung Univ, Dept Engn Sci, Tainan 70101, Taiwan
Natl Cheng Kung Univ, Dept Engn Sci, Tainan 70101, Taiwan
Natl Pingtung Polytech Inst, Dept Civil Engn, Pingtung 91207, Taiwan
 

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