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Keywords: plastic flow
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Journal Articles
Article Type: Technical Briefs
J. Appl. Mech. March 2011, 78(2): 024502.
Published Online: November 10, 2010
... is large compared with the thickness of the boundary layer around the rod, an analytical relation is obtained between the wave number and the frequency. The presence of the fluid makes the waves disperse—the short waves become faster than the long ones. biomimetics elasticity plastic flow rods...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. March 2010, 77(2): 021005.
Published Online: December 9, 2009
... that it has a fractal dimension increasing from 0 toward 2 as the material transitions from elastic to perfectly plastic. While the grains possess sharp elastic-plastic stress-strain curves, the overall stress-strain responses are smooth and asymptote toward perfectly plastic flows; these responses...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. September 2009, 76(5): 051004.
Published Online: June 17, 2009
..., a saddle point transient equilibrium position for the dislocation can also be observed under certain conditions. 02 05 2008 03 10 2008 17 06 2009 internal stresses plastic flow screw dislocations shear modulus three-phase fibrous composite viscous interface screw...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. May 2009, 76(3): 031016.
Published Online: March 13, 2009
... dependency of the material behavior and the complex description of the plastic flow near stress-free voids. Both bounds (“dual bounds”) are adjusted to capture Gurson-like porous materials with noninteractive voids. General residual stresses (either real or virtual) are presented in the analysis...
Journal Articles
Article Type: Research Papers
J. Appl. Mech. May 2008, 75(3): 031013.
Published Online: May 1, 2008
... path (combined compression and torsion) from a uniaxial loading. A key point emerging from this study is that the structure impact response (i.e., the plastic flow mechanism and the absorbed energy) is influenced by the loading rate coupled with the biaxial loading complexity. In this study, three...
Journal Articles
Article Type: Technical Briefs
J. Appl. Mech. May 2007, 74(3): 586–589.
Published Online: May 26, 2006
... earlier. By associating these two fields together, it is shown that they constitute a complete solution for the uncontained plastic flow problem around a finite length internal crack, having a positive rate of plastic work. The yield condition employed is an alternative criterion first proposed by Richard...
Journal Articles
Article Type: Technical Papers
J. Appl. Mech. July 2007, 74(4): 628–635.
Published Online: May 24, 2006
... buckling behavior of several tubular structures made from copper, aluminum, and mild steel. The effects of the loading path complexity, the geometrical parameters of the structures, and loading rates (notably the tangential one) on the plastic flow mechanism, the mean collapse load, and the energy absorbed...
Journal Articles
Article Type: Technical Papers
J. Appl. Mech. November 2006, 73(6): 984–994.
Published Online: April 17, 2006
..., plastic flow is the default mechanical behavior ( 21 ). That process is called ductile regime . Model parameters Parameter Definition Value Units A Material strength constant 2.91 × 10 − 3 MPa − 1 s − 1 Q Molar activation...
Journal Articles
Article Type: Technical Papers
J. Appl. Mech. March 2006, 73(2): 246–253.
Published Online: May 10, 2005
...Christian F. Niordson; Viggo Tvergaard In metal-ceramic systems the constraint on plastic flow leads to so high stress triaxialities that cavitation instabilities may occur. If the void radius is on the order of magnitude of a characteristic length for the metal, the rate of void growth is reduced...
Journal Articles
Article Type: Article
J. Appl. Mech. March 2005, 72(2): 301–305.
Published Online: March 15, 2005
... revision, September 2, 2004. Editor: R. M. McMeeking. 02 September 2004 15 03 2005 shells (structures) buckling yield stress elasticity plasticity plastic flow internal stresses Elastic buckling of cylindrical shells under axial compression results in sudden...
Journal Articles
Article Type: Technical Papers
J. Appl. Mech. July 2005, 72(4): 564–569.
Published Online: November 2, 2004
... from zero, so that elongation is permitted. This assumption, together with axial symmetry and the isochoric nature of plastic flow, unambiguously defines the set of possible collapse mechanisms, and collapse loads are computed on this basis. Results are contrasted to those presently available, based...
Journal Articles
Article Type: Technical Papers
J. Appl. Mech. July 2004, 71(4): 470–475.
Published Online: September 7, 2004
... size 35 microns were used to make pellets of 35% porosity and 70% liquid saturation. As the capillary number increased, the failure mode changed from brittle cracking to ductile plastic flow. This change coincided with the transition from strain-rate independent flow stress to strain-rate dependent...
Journal Articles
Article Type: Technical Papers
J. Appl. Mech. July 2004, 71(4): 521–531.
Published Online: September 7, 2004
... in the ASME JOURNAL OF APPLIED MECHANICS . 28 February 2003 03 September 2003 07 09 2004 sheet materials plastic deformation plastic flow plasticity hardening The microstructure of a polycrystalline sheet metal generally evolves as it undergoes some finite plastic...
Journal Articles
Article Type: Brief Notes
J. Appl. Mech. May 2004, 71(3): 427–429.
Published Online: June 22, 2004
...N. Alexandrova; S. Alexandrov The plane state of stress in an elastic-plastic rotating anisotropic annular disk is studied. To incorporate the effect of anisotropy on the plastic flow, Hill’s quadratic orthotropic yield criterion and its associated flow rule are adopted. A semi-analytical solution...
Journal Articles
Article Type: Technical Papers
J. Appl. Mech. September 2003, 70(5): 638–643.
Published Online: October 10, 2003
... indentation internal stresses elastoplasticity work hardening plastic flow elasticity The effect of surface residual stresses is important in many applications of scientific and technological interest. Regarding instrumented indentation, surface residual stresses may affect considerably...
Topics: Stress
Journal Articles
Article Type: Technical Papers
J. Appl. Mech. March 2003, 70(2): 212–219.
Published Online: March 27, 2003
... itself in the ASME JOURNAL OF APPLIED MECHANICS . 30 November 1999 19 August 2002 27 03 2003 friction plastic flow modelling plasticity channel flow Introduce a Cartesian coordinate system xy , instead of αβ, with its origin at the intersection of the axes...
Journal Articles
Article Type: Technical Papers
J. Appl. Mech. November 2002, 69(6): 755–762.
Published Online: October 31, 2002
...C. Garion; B. Skoczen A simplified model of martensitic transformation in stainless steels at cryogenic temperatures is proposed. The constitutive modeling of plastic flow under cryogenic conditions is based on the assumption of small strains (⩽0.2). The hardening law for the biphase material (α...
Journal Articles
Article Type: Discussions
J. Appl. Mech. September 2002, 69(5): 712.
Published Online: August 16, 2002
... alloys iron alloys plastic flow yield strength compressive strength tensile strength work hardening Bauschinger effect The author correctly identifies the backbone of metal plasticity as the Mises yield criterion, the Prandtl-Reuss flow law, and isotropic/kinematic hardening. However...
Journal Articles
Article Type: Technical Papers
J. Appl. Mech. November 2001, 68(6): 894–902.
Published Online: February 20, 2001
...) extrusion rotation plasticity plastic flow composite materials multilayers Multilayered composite tubes offer a combination of properties suitable for a wide range of industrial applications. By comparison with single phase tubes there are obvious advantages of the composites in the practice...
Journal Articles
Article Type: Technical Papers
J. Appl. Mech. June 2000, 67(2): 363–371.
Published Online: September 30, 1999
... is the additive decomposition of the contact-area radius, and the correction of the curvature of the particles at the contact point due to plastic flow. The accuracy of the proposed model is validated against nonlinear finite element results involving plastic flow in both loading and unloading conditions. [S0021...