Evaluation of a Strain Energy Equivalence Principle (SEEP)-Based Continuum Damage Model

Abstract:

A new continuum damage theory (CDT) has been proposed by Lee et al. (1997) based on the SEEP. The CDT has the apparent advantage over the other related theories because the complete constitutive law can be readily derived by simply replacing the virgin elastic stiffness with the effective orthotropic elastic stiffness obtained by using the proposed continuum damage theory. In this paper, the CDT is evaluated by comparing the mode shapes and natural frequencies of a square plate containing a small line-through crack with those of the same plate with a damaged site replaced with the effective orthotropic elastic stiffness computed by using the CDT.

• Periodical: Key Engineering Materials (Volumes 353-358)
• Pages: 1199-1202
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.353-358.1199
• Online since: September 2007
• Authors: Usik Lee, Deokki Youn, Sang Kwon Lee
• Keywords: Continuum Damage Theory, Finite Element Model (FEM), Line Through Crack, Mode Shape, Natural Frequency, Strain Energy Equivalence Principle

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