Results 251 to 260 of about 24,291 (299)
Some of the next articles are maybe not open access.
Kinematic hardening of trusses
Ingenieur-Archiv, 1987Polycrystalline materials are modelled using plastic trusses. The rods of the truss simulate the slip systems of a single crystal while the geometry of the truss controls the interaction between the different slip systems. For calculations of the evolution of the yield locus in the space of the nodal forces, i.e. in the generalized stress space, due to
Lippmann, H., Winter, W.
openaire +1 more source
Kinematic hardening and Bauschinger effect
PAMM, 2019AbstractThis paper studies a single crystal subjected to anti‐plane shear‐controlled load reversal within the thermodynamic dislocation theory. Numerical simulations of the governing equations demonstrate the size‐dependent kinematic hardening and the Bauschinger effect. Both are caused by the excess dislocations.
Tuan Minh Tran, Khanh Chau Le
openaire +1 more source
Kinematic hardening of a porous limestone
Rock Mechanics and Rock Engineering, 1984A concept for a kinematic hardening yield surface in stress space for Cordova Cream limestone (Austin Chalk) developed by Celle and Cheatham (1981) has been improved using Ziegler's modification of Prager's hardening rule (Ziegler, 1959). Data to date agree with the formulated concepts. It is shown how kinematic hardening can be used to approximate the
J. B. Cheatham, M. B. Allen, C. C. Celle
openaire +1 more source
Kinematic hardening in creep of Zircaloy
Journal of Nuclear Materials, 2016Abstract Results of biaxial creep tests with stress changes on Zircaloy-2 tube samples are presented. A Hollomon-type viscoplastic strain hardening model is extended by the Armstrong-Frederic nonlinear kinematic hardening law, resulting in a mixed (i.e. isotropic and kinematic) strain hardening model.
Radan Sedláček, Dietmar Deuble
openaire +1 more source
Kinematic hardening of granular materials
Ingenieur-Archiv, 1990Some recently developed constitutive equations (yield function, loading criteria, flow rule) for kinematic hardening of granular materials are discussed and some relevant material dependent parameters are determined on the basis of test results.
R. Boer, W. Brauns
openaire +1 more source
1991
One dimensional evolution rule is used as basis for generalization to three-dimensional finite deformation applications. It is shown that the strain-rate is not a flux and hence it should not be employed in the flow rule in Kinematic hardening theory.
R. N. Dubey, R. Sauve, S. Bedi
openaire +1 more source
One dimensional evolution rule is used as basis for generalization to three-dimensional finite deformation applications. It is shown that the strain-rate is not a flux and hence it should not be employed in the flow rule in Kinematic hardening theory.
R. N. Dubey, R. Sauve, S. Bedi
openaire +1 more source
On the identification of kinematic hardening with reverse shear test
Engineering with Computers, 2014An inverse analysis methodology for determining the parameters of the kinematic law of sheet metals is proposed. The sensitivity of the load versus displacement curves, obtained by reverse shear tests of rectangular and notched specimens, to the kinematic law parameters are studied following a forward analysis, based on finite element simulations ...
André Filipe Gomes Pereira +4 more
openaire +1 more source
Mathematical Analysis of Thermoplasticity with Linear Kinematic Hardening
Journal of Applied Analysis, 2006The authors are experts in the field of elasto-plasticity, and published several articles on related topics, such as the Prandtl-Reuss flow law in plasticity. Here they consider thermoplastic materials with a linear evolution of kinematic hardening.
Chełmiński, K., Racke, R.
openaire +2 more sources
Journal of Engineering Mechanics, 1994
The present paper proposes two rules to develop a new kinematic hardening model. The first rule regulates the movement of the yield surface. It states that during loading, the yield center moves such that the kinematic hardening of the yield surface results in a plastic strain rate that an isotropic hardening model would also predict.
openaire +1 more source
The present paper proposes two rules to develop a new kinematic hardening model. The first rule regulates the movement of the yield surface. It states that during loading, the yield center moves such that the kinematic hardening of the yield surface results in a plastic strain rate that an isotropic hardening model would also predict.
openaire +1 more source
On generalized kinematic hardening theory of plasticity
Ingenieur-Archiv, 1975An isotropic theory of plasticity is proposed in which expansion, rotation and translational movement of the yield surface are taken into account. The properties of the anisotropic parameters are investigated for some measured data. The incremental constitutive equation is then derived.
Tanaka, M., Miyagawa, Y.
openaire +1 more source