Results 221 to 230 of about 8,161 (264)
Some of the next articles are maybe not open access.
Damage Model for Ductile Fracture
1986Large plastic strain in metals is accompanied by nucleation and growth of microvoids and microcracks. This phenomenon is called “ductile plastic damage”; it leads to plastic (“ductile”) fracture. This kind of fracture is considered, for example, in the book of McClintock and Argon [1], from the viewpoint of physics.
openaire +1 more source
Damage evolution in ductile materials: from micro- to macro-damage
Computational Mechanics, 1995This research presents a new simulation concept of damage evolution for metallic materials under large displacements and deformations. The complete damage range is subdivided into both the micro-damage and the macro-damage range. The micro-damage phase is described by the Cocks/Ashby void-growth model for isotropic, ductile materials under isothermal ...
openaire +2 more sources
A new damage model for ductile materials
Engineering Fracture Mechanics, 1992Abstract In this paper, based on the irreversible thermodynamics and orthogonal flow rule, a microdamage evolution equation is first formulated, taking advantage of the specific free energy and plastic potential with internal variables. Furthermore, by analogy with the microdamage evolution equation, a macrodamage evolution equation is derived ...
M. Zheng, Z.J. Luo, X. Zheng
openaire +1 more source
A Coupled Computational Framework for Ductile Damage and Fracture
2008Metal forming processes generally introduce a certain amount of damage in the material being formed. Predictions of the damage formation and growth in a series of forming steps may assist in optimising the individual operations and their order. This is particularly true for operations such as cutting and blanking, which rely on the nucleation of damage
Peerlings, R.H.J. +2 more
openaire +2 more sources
An Anisotropic Damage Model for Ductile Metals
Materials: Processing, Characterization and Modeling of Novel Nano-Engineered and Surface Engineered Materials, 2002An anisotropic ductile damage description is motivated from fracture mechanisms and physical observations in Al-Si-Mg aluminum alloys with second phases. Ductile damage is induced by the classical process of nucleation of voids at inclusions, followed by their growth and coalescence.
Y. Hammi +2 more
openaire +1 more source
Numerical analysis of anisotropic ductile continuum damage
Computer Methods in Applied Mechanics and Engineering, 2003zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire +2 more sources
Micromechanical Characterization of Ductile Damage in DP Steel
2012Weight minimization triggered the automotive industry to introduce new advanced high strength steels that show ductile fracture by microvoid evolution under deformation, resulting in unexpected failure without significant necking. Therefore, an extensive study was initiated to gain insight on the formation and development of microstructural damage in ...
Hoefnagels, J. +3 more
openaire +2 more sources
The effect of initial damage on the dynamic ductile damage and fragmentation
International Journal of Fracture, 1995The hollow spherical model for the growth of the voids proposed by Carroll and Holt and Johnson is used. The effect of initial damage on the dynamic ductile damage and local fragmentation are investigated from the numerical results of dynamic damage velocity and fragment size versus material porosity at different initial damage ...
openaire +1 more source
Radiation Damage Evolution in Ductile Materials
2015The problem investigated in the present work concerns the physical processes involved in radiation damage and the way they affect the mechanical properties of ductile materials. Multiscale modeling of evolution of radiation induced micro-damage in ductile materials subjected to periodic stress states in the inelastic range is presented.
Błażej Skoczeń, Aneta Ustrzycka
openaire +1 more source