COMPUTATIONAL MATERIAL TESTING OF PRE-DAMAGED METALS USING DAMAGE MECHANICS MODELS

Abstract

International Journal of Computational Engineering ScienceVol. 05, No. 02, pp. 259-270 (2004) SPECIAL ISSUE ON RECENT ADVANCES IN COMPUTATIONAL SCIENCE AND ENGINEERING; EDITED BY H. P. LEE AND K. KUMARNo AccessCOMPUTATIONAL MATERIAL TESTING OF PRE-DAMAGED METALS USING DAMAGE MECHANICS MODELSYUTAKA TOI and SATOSHI HIROSEYUTAKA TOIInstitute of Industrial Science, University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan Search for more papers by this author and SATOSHI HIROSEInstitute of Industrial Science, University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan Search for more papers by this author https://doi.org/10.1142/S1465876304002356Cited by:0 Next AboutSectionsPDF/EPUB ToolsAdd to favoritesDownload CitationsTrack CitationsRecommend to Library ShareShare onFacebookTwitterLinked InRedditEmail AbstractThe elasto-viscoplastic constitutive equation considering damage is formulated, based on the concept of continuum damage mechanics. It employs the viscoplastic strain, which was originally given by Perzyna and extended by Murakami to consider the effect of damage. The unified form of damage evolution equation given by Lemaitre is extended to consider the effect of damage type and strain rate. The constitutive modeling is identified, based on static/dynamic tensile tests and fatigue tests for steel (SM490A) and aluminum (2219-T87). The identified models are used to predict the static/dynamic, tensile behaviors of pre-strained steel and pre-fatigued aluminum. The predicted results have agreed well with the corresponding experimental results. References J. Lemaitre , A Course on Damage Mechanics , 2nd edn. ( Springer , 1996 ) . Crossref, Google Scholar J. Skrzypek and A. Ganczarski , Modeling of Material Damage and Failure of Structures (Theory and Applications) ( Springer , 1999 ) . Crossref, Google ScholarD. Krajcinovic, Int. J. Solids Structures 37, 267 (2000). Crossref, Google ScholarM. Itabashi and H. Fukuda, Technology, Law and Insurance 4, 37 (1999). Crossref, Google ScholarM. Itabashiet al., Sino-Japanese Symp. Deformation/Fracture of Solids 41 (1997). Google ScholarM. Itabashi and H. Fukuda, Journal of Materials Processing Technology 117-3, (2001). Google ScholarP. Perzyna, Arch. Mech. 32-3, 403 (1986). Google ScholarS. Murakami, Transactions of the JSME 60-578, 230 (1994). Google ScholarJ. Lemaitre, Comput. Methods Appl. Mech. Engrg. 51, 31 (1985). Crossref, Google ScholarJ. Lemaitre and J. P. Sermage, Computational Mechanics 30, 84 (1997). Google ScholarY. Toi and S. Hirose, Transactions of the Japan Society of Mechanical Engineers, Series (A) 69-679, 530 (2003). Google Scholar FiguresReferencesRelatedDetails Recommended Vol. 05, No. 02 Metrics History PDF download