Multiscale modelling and simulation of polymer nanocomposites using transformation field analysis (TFA)

2019 ◽  
Vol 209 ◽  
pp. 981-991
Author(s):  
I.Al. Khattab ◽  
M. Sinapius
Keyword(s):  
Polymer Nanocomposites ◽  
Multiscale Modelling ◽  
Modelling And Simulation ◽  
Field Analysis ◽  
Transformation Field Analysis

Multiscale modelling and simulation of viruses

2020 ◽  
Vol 61 ◽  
pp. 146-152 ◽  
Author(s):  
Jan K Marzinek ◽  
Roland G Huber ◽  
Peter J Bond
Keyword(s):  
Multiscale Modelling ◽  
Modelling And Simulation

Implementation of the transformation field analysis for inelastic composite materials

1994 ◽  
Vol 14 (3) ◽  
pp. 201-228 ◽  
Author(s):  
G. J. Dvorak ◽  
A. M. Wafa ◽  
Y. A. Bahei-El-Din
Keyword(s):  
Composite Materials ◽  
Field Analysis ◽  
Transformation Field Analysis

A Multiscale Model of Composite Failure Under Impact

2006 ◽  
Author(s):  
Caglar Oskay ◽  
Jacob Fish
Keyword(s):  
Mesoscale Model ◽  
Computational Cost ◽  
Expansion Method ◽  
Multiple Scale ◽  
Multiscale Model ◽  
Field Analysis ◽  
Computationally Efficient ◽  
Composite Failure ◽  
Homogenization Approach ◽  
Transformation Field Analysis

We present a new computationally efficient mesoscale model aimed at predicting the dominant characteristics of failure at the microstructural level. This method combines the multiple scale asymptotic expansion method with the generalized transformation field analysis (GTFA) to reduce the computational cost of the direct homogenization approach. A computational validation methodology was devised for the validation of the proposed mesoscale model against experimental data. The proposed validation methodology permits incorporation of various types of experiments to the validation process by employing an experiment simulator repository.

ASME 1992 Nadai Lecture—Micromechanics of Inelastic Composite Materials: Theory and Experiment

1993 ◽  
Vol 115 (4) ◽  
pp. 327-338 ◽  
Author(s):  
George J. Dvorak
Keyword(s):  
Composite Materials ◽  
General Procedure ◽  
Local Fields ◽  
Field Analysis ◽  
Plastic Strains ◽  
Inelastic Behavior ◽  
Aluminum Composite ◽  
Plastic Strain Increment ◽  
Multiphase Materials ◽  
Transformation Field Analysis

Some recent theoretical and experimental results on modeling of the inelastic behavior of composite materials are reviewed. The transformation field analysis method (G. J. Dvorak, Proc. R. Soc. London, Series A437, 1992, pp. 311–327) is a general procedure for evaluation of local fields and overall response in representative volumes of multiphase materials subjected to external thermomechanical loads and transformations in the phases. Applications are presented for systems with elastic-plastic and viscoelastic constituents. The Kroner-Budiansky-Wu and the Hill self-consistent models are corrected to conform with the generalized Levin formula. Recent experimental measurements of yield surfaces and plastic strains on thin-walled boron-aluminum composite tubes are interpreted with several micromechanical models. The comparisons show that unit cell models can provide reasonably accurate predictions of the observed plastic strains, while models relying on normality of the plastic strain increment vector to a single overall yield surface may not capture the essential features of the inelastic deformation process.

Sign in / Sign up

Export Citation Format

Share Document