Results 231 to 240 of about 58,852 (305)
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Engineering Fracture Mechanics, 2019
In this paper, we have developed a continuum damage mechanics (CDM) based methodology for high cycle fatigue crack growth simulations. A fatigue damage law is proposed and implemented in the framework of extended finite element method (XFEM).
V. B. Pandey +5 more
semanticscholar +1 more source
In this paper, we have developed a continuum damage mechanics (CDM) based methodology for high cycle fatigue crack growth simulations. A fatigue damage law is proposed and implemented in the framework of extended finite element method (XFEM).
V. B. Pandey +5 more
semanticscholar +1 more source
Anisotropy in continuum damage mechanics
Scripta Metallurgica et Materialia, 1993The theory of continuum damage mechanics, first proposed by Kachanov, deals with the effects of damage due to the presence and coalescence of microcracks on the mechanical properties of materials. Different models of continuum damage mechanics have been proposed during the last two decades.
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Decomposition of Damage Tensor in Continuum Damage Mechanics
Journal of Engineering Mechanics, 2001The principles of continuum damage mechanics are reviewed first for the case of uniaxial tension. The damage variable is then decomposed into two variables called crack damage variables and void damage variables. A consistent mathematical formulation is presented to decompose the damage tensor into two parts: one caused by voids and the other caused by
Peter I. Kattan, George Z. Voyiadjis
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On the decomposition of the damage variable in continuum damage mechanics
Acta Mechanica, 2017zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Voyiadjis, George Z., Kattan, Peter I.
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, 2019
Rolling contact fatigue (RCF) is the primary mode of fatigue failure in well-lubricated rolling element bearings. Typical fatigue failures in bearings are characterized by microcrack formation (initiation phase), which then coalesce to a large crack that
Akhil Vijay, F. Sadeghi
semanticscholar +1 more source
Rolling contact fatigue (RCF) is the primary mode of fatigue failure in well-lubricated rolling element bearings. Typical fatigue failures in bearings are characterized by microcrack formation (initiation phase), which then coalesce to a large crack that
Akhil Vijay, F. Sadeghi
semanticscholar +1 more source
Complex Damage Variables in Continuum Damage Mechanics
Applied Mechanics and Materials, 2015The concept of complex damage variables is introduced in this work. These damage variables have both real and imaginary parts. They are introduced not to use them in practical applications but to try to derive a direct relationship between the damage due to cross-sectional area reduction and the damage due to elastic stiffness degradation.
George Z. Voyiadjis, Peter I. Kattan
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On Representation of Damage Evolution in Continuum Damage Mechanics
International Journal of Damage Mechanics, 1997The effect of damage patterning on elastic moduli and damage evolution in ideal brittle cracked solids is examined. Key limitations associated with typical continuum damage mechanics approaches are addressed. Critical shortcomings arising from the use of spatially-averaged damage descriptors in the evaluation of effective moduli and thermodynamic ...
T. E. Lacy +3 more
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A NURBS-BEM Application in Continuum Damage Mechanics
Key Engineering Materials, 2018In this paper the integral equation approach is used to describe the propagation of continuumdamage in three dimensional solids. The governing equation is of integral type and contains bothboundary and domain integrals. Such integrals are computed with the aid of the NURBS functions.The subvolume involved by the damage is modelled by a special mapping ...
Mallardo, Vincenzo +2 more
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2015
This chapter introduces the general concept of ductile damage, i.e. the development of microvoids and pores due to large plastic strains and deformations. The general definitions of damage based on a scalar damage variable as the surface damage variable or the void volume fraction are introduced and experimental approaches to measure the quantity of ...
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This chapter introduces the general concept of ductile damage, i.e. the development of microvoids and pores due to large plastic strains and deformations. The general definitions of damage based on a scalar damage variable as the surface damage variable or the void volume fraction are introduced and experimental approaches to measure the quantity of ...
openaire +1 more source
2005
Continuum Damage Mechanics (CDM) can be thought of as a subset of ISV theory as described earlier. It was introduced by Kachanov [1] and modified somewhat by Rabotnov [2]] has now reached a stage that practical engineering problems can be solved. In contrast to fracture mechanics which considers the process of initiation and growth of microcracks as a ...
openaire +1 more source
Continuum Damage Mechanics (CDM) can be thought of as a subset of ISV theory as described earlier. It was introduced by Kachanov [1] and modified somewhat by Rabotnov [2]] has now reached a stage that practical engineering problems can be solved. In contrast to fracture mechanics which considers the process of initiation and growth of microcracks as a ...
openaire +1 more source