Simplified Viscoelastic Continuum Damage Model as Platform for Asphalt Concrete Fatigue Analysis

2012 ◽  
Vol 2296 (1) ◽  
pp. 36-45 ◽  
Author(s):  
B. Shane Underwood ◽  
Cheolmin Baek ◽  
Y. Richard Kim
Keyword(s):  
Asphalt Concrete ◽  
Damage Model ◽  
Fatigue Analysis ◽  
Continuum Damage ◽  
Continuum Damage Model ◽  
Viscoelastic Continuum Damage

Development of Probabilistic Viscoelastic Continuum Damage Model for Asphalt Concrete

2019 ◽  
Vol 2673 (5) ◽  
pp. 285-298 ◽  
Author(s):  
Hussein Kassem ◽  
Ghassan Chehab ◽  
Shadi Najjar
Keyword(s):  
Asphalt Concrete ◽  
Complex Modulus ◽  
Experimental Testing ◽  
Damage Model ◽  
Material Model ◽  
Continuum Damage ◽  
Characteristic Curves ◽  
Continuum Damage Model ◽  
Viscoelastic Continuum Damage ◽  
Damage Characteristic

The main objective of this paper is to develop a realistic probabilistic framework for characterization of different types of asphalt concrete using advanced material modeling. The adopted methodology builds on and enhances a viscoelastic continuum damage (VECD) material model by utilizing a suite of associated experimental testing protocols and incorporating the uncertainties associated with the different material properties. The modeled uncertainties address the variabilities and errors associated with the linear viscoelastic (LVE) functions achieved from the complex modulus test and damage characteristic curves obtained from constant crosshead rate testing. A probabilistic scheme using First Order approximations and Monte Carlo simulations is developed to characterize the inherent uncertainty of each of the LVE functions over the time domain of their mastercurves. For damage characteristic curves, the uncertainty in normalized pseudostiffness increases as the level of damage becomes larger. The uncertainties of LVE properties are propagated along with those of C versus stress curves to yield a probabilistic viscoelastic continuum damage model (P-VECD). The P-VECD not only predicts the average viscoelastic response to a given loading input, but it can also provide its distribution, which is essential for a reliability-based pavement design.

Aero-engine blade fatigue analysis based on nonlinear continuum damage model using neural networks

2012 ◽  
Vol 25 (2) ◽  
pp. 338-345 ◽  
Author(s):  
Jiewei Lin ◽  
Junhong Zhang ◽  
Guichang Zhang ◽  
Guangjian Ni ◽  
Fengrong Bi
Keyword(s):  
Neural Networks ◽  
Damage Model ◽  
Fatigue Analysis ◽  
Continuum Damage ◽  
Continuum Damage Model ◽  
Aero Engine ◽  
Engine Blade ◽  
Nonlinear Continuum

Comparison of conventional, polymer, and rubber asphalt mixtures using viscoelastic continuum damage model

2014 ◽  
Vol 15 (3) ◽  
pp. 588-605 ◽  
Author(s):  
Waleed A. Zeiada ◽  
B. Shane Underwood ◽  
Tina Pourshams ◽  
Jeffrey Stempihar ◽  
Kamil E. Kaloush
Keyword(s):  
Damage Model ◽  
Asphalt Mixtures ◽  
Continuum Damage ◽  
Continuum Damage Model ◽  
Viscoelastic Continuum Damage

Fatigue cracking simulation of aged asphalt pavements using a viscoelastic continuum damage model

2018 ◽  
Vol 19 (3) ◽  
pp. 546-560 ◽  
Author(s):  
Lucas F. de A. L. Babadopulos ◽  
Jorge B. Soares ◽  
Jorge Luis S. Ferreira ◽  
Luis Alberto H. do Nascimento
Keyword(s):  
Damage Model ◽  
Fatigue Cracking ◽  
Asphalt Pavements ◽  
Continuum Damage ◽  
Continuum Damage Model ◽  
Viscoelastic Continuum Damage ◽  
Aged Asphalt
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