Title
A Creep Rupture Time Model For Anisotropic Creep-Damage Of Transversely-Isotropic Materials
Abstract
Anisotropic creep-damage modeling has become an increasingly important prediction technique in both the aerospace and industrial gas turbine industries. The introduction of tensorial damage mechanics formulations in modeling tertiary creep behavior has lead to improved predictions of the creep strain that develops due to anisotropic grain structures and the induced anisotropy that occurs with intergranular damage. A number of isotropic creep-damage rupture time prediction models have been developed in literature; however, few rupture time prediction models for tensorial anisotropic creep-damage are available. In this paper, a rupture time model for anisotropic creep-damage of transversely isotropic materials is derived. Comparison with the Larson-Miller parameter, Monkman-Grant relation, and Kachanov-Rabotnov continuum damage mechanics (CDM) approach shows improved creep rupture time predictions for multiaxial conditions and material rotations. A parametric study of the rupture time predicted under various states of equivalent stress and material orientations is performed to demonstrate the robustness of the new formulation. Copyright © 2010 by ASME.
Publication Date
12-1-2010
Publication Title
Proceedings of the ASME Turbo Expo
Volume
6
Issue
PARTS A AND B
Number of Pages
511-520
Document Type
Article; Proceedings Paper
Personal Identifier
scopus
DOI Link
https://doi.org/10.1115/GT2010-22532
Copyright Status
Unknown
Socpus ID
82055194590 (Scopus)
Source API URL
https://api.elsevier.com/content/abstract/scopus_id/82055194590
STARS Citation
Stewart, Calvin M. and Gordon, Ali P., "A Creep Rupture Time Model For Anisotropic Creep-Damage Of Transversely-Isotropic Materials" (2010). Scopus Export 2010-2014. 526.
https://stars.library.ucf.edu/scopus2010/526