Poon, B. and Ponson, L. and Zhao, J. and Ravichandran, G. (2011) Damage accumulation and hysteretic behavior of MAX phase materials. Journal of the Mechanics and Physics of Solids, 59 (10). pp. 2238-2257. ISSN 0022-5096 http://resolver.caltech.edu/CaltechAUTHORS:20111024-140753135
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The compressive response of fully dense and 10 vol% porous Ti_(2)AlC MAX phase materials subjected to quasi-static uniaxial and cyclic loading including their repeatable hysteretic behavior is presented. Damage accumulation in the form of kink bands and microcracking is characterized using ultrasonics and scanning electron microscopy under different levels of compressive loading. The observations and measurements are correlated quantitatively using a model based on friction between the crack faces, which is the main dissipation process. The model is shown to capture the hysteretic behavior of Ti_(2)AlC MAX phase and quantitatively reproduce the experimentally measured stress–strain curves.
|Additional Information:||© 2011 Elsevier Ltd. Received 14 November 2009; revised 23 February 2011; Accepted 13 March 2011. Available online 20 July 2011. This work was supported by DARPA/DSO through the Naval Research Laboratory and is gratefully acknowledged. L. P. thanks the support from the European Union through the Marie Curie program. We thank Dr. T. El-Raghy for providing the MAX materials used in this investigation and Drs. R.K. Everett and J.P. Thomas for helpful discussions.|
|Subject Keywords:||Constitutive behavior; Mechanical testing; Microcracking; Fractography; Damage|
|Official Citation:||B. Poon, L. Ponson, J. Zhao, G. Ravichandran, Damage accumulation and hysteretic behavior of MAX phase materials, Journal of the Mechanics and Physics of Solids, Volume 59, Issue 10, October 2011, Pages 2238-2257, ISSN 0022-5096, 10.1016/j.jmps.2011.03.012.|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Jason Perez|
|Deposited On:||24 Oct 2011 22:34|
|Last Modified:||24 Oct 2011 22:34|
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