An anisotropic damage theory with unilateral effects

2002 ◽  
pp. 205-233 ◽  
Author(s):  
Ladeveze Pierre
Keyword(s):  
Anisotropic Damage ◽  
Unilateral Effects ◽  
Damage Theory

On the non-conservativeness of a class of anisotropic damage models with unilateral effects

2006 ◽  
Vol 334 (7) ◽  
pp. 414-418 ◽  
Author(s):  
Noël Challamel ◽  
Damien Halm ◽  
André Dragon
Keyword(s):  
Anisotropic Damage ◽  
Damage Models ◽  
Unilateral Effects

Strain-based anisotropic damage modelling and unilateral effects

2005 ◽  
Vol 47 (3) ◽  
pp. 459-473 ◽  
Author(s):  
Noël Challamel ◽  
Christophe Lanos ◽  
Charles Casandjian
Keyword(s):  
Anisotropic Damage ◽  
Unilateral Effects ◽  
Damage Modelling

Different Numerical Time Integration Schemes for Elastoplasticity Coupled to Anisotropic Damage

2015 ◽  
Vol 784 ◽  
pp. 217-224 ◽  
Author(s):  
Marek Fassin ◽  
Stephan Wulfinghoff ◽  
Stefanie Reese
Keyword(s):  
Damage Mechanics ◽  
Time Integration ◽  
Continuum Damage Mechanics ◽  
Anisotropic Damage ◽  
Fully Implicit ◽  
Integration Schemes ◽  
Time Integration Schemes ◽  
Integration Algorithms ◽  
Damage Theory ◽  
Numerical Time Integration

Much effort has been put in the development of proper continuum damage mechanics models, in which damage is either represented as a scalar, vectorial or tensorial quantity. In this work the anisotropic damage theory of Lemaitre et al. (2000), which describes damage as a second order tensor, is utilized. Two numerical time integration algorithms, namely a fully implicit and a partially explicit scheme, are compared by means of finite element computations of a plate with a circular hole. The convergence behavior of the two algorithms is studied and compared regarding the number of time steps.

Anisotropic Damage for Aluminium

2002 ◽  
Vol 5 (2-3-4) ◽  
pp. 269-285 ◽  
Author(s):  
Patrick Croix ◽  
Franck Lauro ◽  
Jérôme Oudin
Keyword(s):  
Anisotropic Damage

Measuring Unilateral Effects in Partial Acquisitions

2013 ◽  
Author(s):  
Duarte Brito ◽  
Ricardo Ribeiro ◽  
Helder Vasconcelos
Keyword(s):  
Unilateral Effects ◽  
Partial Acquisitions

Formulation of a Strain Based Orthotropic Elasto-Plastic Damage Theory

2000 ◽  
Vol 9 (2) ◽  
pp. 174-191
Author(s):  
L. C. CHAN ◽  
T. C. LEE ◽  
J. P. FAN ◽  
C. Y. TANG
Keyword(s):  
Plastic Damage ◽  
Damage Theory

Reliability Simulation and Forecast Based on Virtual Prototype for the Running System of Complicated Equipments

2014 ◽  
Vol 543-547 ◽  
pp. 195-198
Author(s):  
Li Jun Cao ◽  
Hui Bin Hu ◽  
Gui Bo Yu ◽  
Shu Hai Wang
Keyword(s):  
Probability Density ◽  
Local Stress ◽  
Virtual Prototype ◽  
Probability Density Distribution ◽  
Stress And Strain ◽  
Load Spectrum ◽  
Density Distribution Function ◽  
Running System ◽  
Maintenance Cycle ◽  
Damage Theory

The running system is the key part to finish training or battle tasks of complicated equipments. But formidable working conditions influence the measurement of load spectrums and it is difficult to analyze and forecast the reliability of running system. Actual vehicle experiments and virtual prototype are firstly combined to obtain complete load spectrum of running system. According to the materials S-N curve, stress and strain spectrums can be computed. Nominal stress method and local stress and strain method are combined with probability density accumulation damage theory to compute the probability density distribution function. Then, the reliability of running system can be forecasted, which provide adequate reference for the maintenance cycle confirmation and mission reliability prediction.

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