A continuum damage mechanics framework for modeling micro-damage healing Academic Article

abstract

• A novel continuum damage mechanics-based framework is proposed to model the micro-damage healing phenomenon in the materials that tend to self-heal. This framework extends the well-known Kachanov's (1958) effective configuration and the concept of the effective stress space to self-healing materials by introducing the healing natural configuration in order to incorporate the micro-damage healing effects. Analytical relations are derived to relate strain tensors and tangent stiffness moduli in the nominal and healing configurations for each postulated transformation hypothesis (i.e. strain, elastic strain energy, and power equivalence hypotheses). The ability of the proposed model to explain micro-damage healing is demonstrated by presenting several examples. Also, a general thermodynamic framework for constitutive modeling of damage and micro-damage healing mechanisms is presented. 2011 Elsevier Ltd. All rights reserved.

authors

• Little, Dallas

published proceedings

• INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES

author list (cited authors)

• Darabi, M. K., Abu Al-Rub, R. K., & Little, D. N.

citation count

• 144

complete list of authors

• Darabi, Masoud K||Abu Al-Rub, Rashid K||Little, Dallas N

publication date

• February 2012

publisher

• Elsevier  Publisher

published in

• International Journal of Solids and Structures  Journal

keywords

• Continuum Damage Mechanics
• Healing Natural Configuration
• Micro-damage Healing
• Rest Time
• Thermodynamic-based Constitutive Modeling

Digital Object Identifier (DOI)

• 10.1016/j.ijsolstr.2011.10.017

start page

• 492

end page

• 513

volume

• 49

issue

• 3-4

URL

• http://dx.doi.org/10.1016/j.ijsolstr.2011.10.017