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Technical Briefs

Influence of Ductile Damage Evolution on the Collapse Load of Frames

[+] Author and Article Information
Edwin L. Chica1

Department of Mechanical Engineering, University of Antioquia, C/67 No. 53-108, AA 1226 Medellín, Colombiaechica@udea.edu.co

Antolín L. Ibán

Solid Mechanics and Structures Group, E.T.S.I.I. (Industrial Engineering), University of Valladolid, C/Paseo del Cauce, 59, CP 47011 Valladolid, Spainali@eis.uva.es

José M. G. Terán

Solid Mechanics and Structures Group, E.T.S.I.I. (Industrial Engineering), University of Valladolid, C/Paseo del Cauce, 59, CP 47011 Valladolid, Spainteran@uva.es

Pablo M. López-Reyes

Structural Design Area, CARTIF, Technological Park of Boecillo, CP 47151 Valladolid, Spainpablop@cartif.es

1

Corresponding author.

J. Appl. Mech 77(3), 034502 (Feb 04, 2010) (4 pages) doi:10.1115/1.4000427 History: Received February 10, 2009; Revised July 17, 2009; Published February 04, 2010; Online February 04, 2010

In this note we analyze the influence of four damage models on the collapse load of a structure. The models considered here have been developed using the hypothesis based on the concept of effective stress and the principle of strain equivalence and they were proposed by Lemaitre and Chaboche (1990, Mechanics of Solid Materials), Wang (1992, “Unified CDM Model and Local Criterion for Ductile Fracture—I. Unified CDM Model for Ductile Fracture,” Eng. Fract. Mech., 42, pp. 177–183), Chandrakanth and Pandey (1995, “An Isotropic Damage Model for Ductile Material,” Eng. Fract. Mech., 50, pp. 457–465), and Bonora (1997, “A Nonlinear CDM Model for Ductile Failure,” Eng. Fract. Mech., 58, pp. 11–28). The differences between them consist mainly in the form of the dissipative potential from which the kinetic law of damage is derived and also in the assumptions made about some parameters of the material.

FIGURES IN THIS ARTICLE
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Copyright © 2010 by American Society of Mechanical Engineers
Topics: Stress , Collapse , Failure
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References

Figures

Grahic Jump Location
Figure 1

Beam element with plasticity and damage at its ends

Grahic Jump Location
Figure 2

Damage (D) versus accumulated plastic strain (p)

Grahic Jump Location
Figure 3

Test on a 2D frame

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