Computational Mechanics

Description:

Information obtained from microstructure-property relationships, material behavior characterization and in situ nondestructive evaluations (NDE) is used to model the deformation and damage processes in materials. Of particular interest to TAMG is to achieve:

  • Constitutive modeling of material behavior. The design of novel material architectures creates the need to accurately model their response to external stimuli by taking into account information that is related to the activation, development and interaction of dominant deformation and damage mechanisms, given the material geometry and types of loading.
  • Include deterioration into life predictions. Computational models are used in correlation to mechanical testing and NDE information to create reliable models that take into account the current state of material performance, and are capable of predicting the development of damage and their relationship with the remaining life of materials, components and structures.

CompFig

Figure: Examples of computational mechanics applications and modeling: (a) multiscale agglomeration model for  polymer nanocomposites,  (b) wave propagation due to cracking in a compact tension specimen using FEM (left) and stress field ahead of the crack tip for a FEM simulation of crack growth.

 Related Publications:

2017 K.P. Baxevanakis, C. Mo, M. Cabal and A. Kontsos*, “An Integrated Method to Model Strain Localization Bands in Magnesium Alloys”, Computational Mechanics Journal
2017 D. Liu, D. Christe, B. Shakibajahromi, C. Knittel, N. Castaneda, D. E. Breen, G. Dion and A. Kontsos*, “On the Role of Material Architecture in the Mechanical Behavior of Knitted Textiles”, International Journal of Solids and Structures, Vol. 109, pp. 101-11
2016 J.A. Cuadra, K.P. Baxevanakis, M. Mazzotti, I. Bartoli and A. Kontsos, “Energy dissipation via acoustic emission in ductile crack initiation”, International Journal of Fracture, Vol. 199, pp. 89-104 (View)
2016 J. Cuadra, K.P. Baxevanakis, A. Loghin and A. Kontsos, “Validation of a cyclic plasticity computational method using fatigue full field deformation measurements”, Fatigue & Fracture of Engineering Materials & Structures, Vol. 39, pp. 722-736 (View)
2015 J. Cuadra, P.A. Vanniamparambil, D. Servansky, I. Bartoli and A. Kontsos*, “Acoustic Emission source modeling using a data-driven approach”, Journal of Sound and Vibration, Vol. 341, pp. 222-236
2015 A. Watters, J. Cuadra, A. Kontsos and G. Palmese, “Processing-Structure-Property relationships of SWNT-Epoxy composites prepared using ionic liquids”, Composites: Part A, Vol. 73, pp. 269-276 (View)
2015 J. Cuadra, P.A. Vanniamparambil, D. Servansky, I. Bartoli and A. Kontsos, “Acoustic Emission source modeling using a data-driven approach”, Journal of Sound and Vibration, Vol. 341, pp. 222-236 (View)
2013 A. Kontsos and J.A. Cuadra, “Multiscale Stochastic Finite Elements Modeling of Polymer Nanocomposites”, V. Mittal (Ed.): Modeling and Prediction of Polymer Nanocomposite Properties, Vol. 4, Wiley VCH Germany (Polymer Nano-, Micro- and Macro-composites Series) (View)