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Keywords: plasticity
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Journal Articles
Article Type: Research Papers
J. Manuf. Sci. Eng. September 2022, 144(9): 091007.
Paper No: MANU-21-1648
Published Online: May 19, 2022
.... This correlation is obtained in the phase-space relating in-plane reaction forces on the tool to the tool rotation angle. We focus on the interactions of the tool geometry and tool motion with the surrounding material undergoing plastic deformation and deduce novel insights into various correlations of tool motion...
Includes: Supplementary data
Journal Articles
Article Type: Research-Article
J. Manuf. Sci. Eng. December 2013, 135(6): 061011.
Paper No: MANU-13-1103
Published Online: November 18, 2013
... analysis plasticity battery tab copper aluminum Ultrasonic welding creates a solid-state bond using ultrasonic energy. It is capable of creating a joint not only between similar metals but also between dissimilar metals or even between metals and plastics. It has the advantage of requiring...
Journal Articles
Article Type: Technical Briefs
J. Manuf. Sci. Eng. August 2012, 134(4): 044503.
Published Online: June 27, 2012
... developed, from which one can design the opening of the actuator in order to avoid the buckling of the actuator during a heating stage of the process. laser thermal adjustment actuator thermal strain elastic plasticity Laser thermal adjustment derives from laser forming by transferring...
Journal Articles
Article Type: Technical Briefs
J. Manuf. Sci. Eng. December 2011, 133(6): 064503.
Published Online: December 22, 2011
... of the electroplastic effect, the thermal aspect needs to be isolated. Two types of EAF tests were performed: (a) deformation test and (b) stationary tests, where the specimen is placed between the dies, while no plastic deformation takes place. The temperature rise and its distribution during an electrical test...
Journal Articles
Article Type: Research Papers
J. Manuf. Sci. Eng. August 2011, 133(4): 041007.
Published Online: July 27, 2011
... dimension control, size effect, and tool wear progression in micromachining of hardened tool steels are experimentally investigated. A strain gradient plasticity model is developed for micromachining of hardened H13 tool steel. Novel 2D finite element (FE) models are developed in software ABAQUS to simulate...
Journal Articles
Article Type: Research Papers
J. Manuf. Sci. Eng. June 2011, 133(3): 031017.
Published Online: July 1, 2011
... that are generally neglected in the macroscale cutting models must be incorporated into the micromachining models. Diamond turning and mechanical nanomanufacturing techniques also require an understanding of crystallographic effects during material removal. This work presents a rate-sensitive plasticity-based...
Journal Articles
Article Type: Research Papers
J. Manuf. Sci. Eng. June 2011, 133(3): 031018.
Published Online: July 1, 2011
... plasticity-based machining (RSPM) model developed in Part I. The five material parameters, including four hardening parameters and the exponent of rate sensitivity, for both single-crystal aluminum and single-crystal copper are calibrated from the single-crystal plunge-turning data using a Kriging-based...
Journal Articles
Article Type: Research Papers
J. Manuf. Sci. Eng. August 2010, 132(4): 041013.
Published Online: July 23, 2010
... to preserve the computational efficiency of inverse FEM, a pseudodeformation theory of plasticity based constitutive equation is proposed, which can well reflect the actual forming condition such as elastic/plastic deformation or loading/unloading condition. The above-mentioned improvements are implemented...
Journal Articles
Article Type: Technical Briefs
J. Manuf. Sci. Eng. April 2010, 132(2): 024503.
Published Online: April 21, 2010
... cold working ductile fracture forming processes hot working metalworking plasticity product design ductile fracture metal forming plasticity Reviews of ductile fracture criteria are provided, for example, in Refs. 1 2 3 . Upsetting is a typical test for determining parameters...
Journal Articles
Article Type: Technical Briefs
J. Manuf. Sci. Eng. February 2010, 132(1): 014503.
Published Online: January 25, 2010
... agreement with the temperatures measured in the experiment. Also, the model was able to predict in a reasonable fashion the stresses and plastic strains in the plates. 17 12 2008 16 12 2009 25 01 2010 25 01 2010 finite element analysis friction friction welding mechanical...
Journal Articles
Article Type: Technical Briefs
J. Manuf. Sci. Eng. December 2009, 131(6): 064503.
Published Online: November 13, 2009
... with temperature). After the work hardening region, the stress-strain curves are assumed perfectly plastic. At t = 0 , 32.4   A / mm 2 is applied to the specimen using a nodal current boundary condition distributed on the top edge via the radial coordinate; thereby creating a uniform...
Journal Articles
Article Type: Research Papers
J. Manuf. Sci. Eng. August 2009, 131(4): 041014.
Published Online: July 15, 2009
..., conventional plasticity theory employed in previous studies needs to be re-examined due to the length scale effect. In the present work, the length scale effects in microscale laser shock peening have been investigated. The crystal lattice rotation underneath the shocked surface was determined via electron...
Journal Articles
Article Type: Research Papers
J. Manuf. Sci. Eng. August 2009, 131(4): 041007.
Published Online: July 13, 2009
...) and volume (plasticity) softening effects. In the presented work, an attempt has been made to simulate the ultrasonic welding of metals by taking into account these effects (surface and volume). A phenomenological material model has been proposed, which incorporates these two effects (i.e., surface...
Journal Articles
Article Type: Research Papers
J. Manuf. Sci. Eng. June 2009, 131(3): 031017.
Published Online: May 29, 2009
.... The high strain rate effect is considered and the hybrid algorithm is introduced in the model to capture the residual stresses based on the incremental plasticity equations. The predicted residual stresses are validated by several experiments with different laser conditions and target materials...
Journal Articles
Article Type: Research Papers
J. Manuf. Sci. Eng. April 2008, 130(2): 021008.
Published Online: March 24, 2008
...C. Y. Seemikeri; P. K. Brahmankar; S. B. Mahagaonkar Biomedical manufacturing technologies are assuming highly visible position at the frontiers of manufacturing. A new field, “engineered surfaces,” is emerging as a more effective and economic route to successful manufacture. Low plasticity...
Journal Articles
Article Type: Technical Papers
J. Manuf. Sci. Eng. August 2007, 129(4): 698–704.
Published Online: February 13, 2007
... configurations are geometrically determined to consider the deformation paths; two new efficient algorithms of plastic integration are proposed to consider the loading history. In the direct scalar algorithm (DSA), an elastic unloading-reloading factor γ is introduced to deal with the bending-unbending effects...
Journal Articles
Article Type: Technical Papers
J. Manuf. Sci. Eng. August 2007, 129(4): 690–697.
Published Online: December 14, 2006
... to a nonuniform distribution of plastic strain and measured hardness and, thus, the curving tendency. Microhardness tests of the initial billet material and tensile test specimens are also presented as supplementary analyses. A comparison of Figs. 8 9b 10b indicates that the hardness values obtained from...
Journal Articles
Article Type: Technical Papers
J. Manuf. Sci. Eng. June 2007, 129(3): 470–476.
Published Online: December 4, 2006
... by the scaling parameter n , to the Hall–Petch equation. The scaling model offers a simple way to model the size effect down to length scales of a couple of grains and to extend the use of continuum plasticity theories to micro/mesolength scales. 19 09 2005 04 12 2006 forming processes...
Journal Articles
Article Type: Technical Papers
J. Manuf. Sci. Eng. June 2007, 129(3): 485–496.
Published Online: November 10, 2006
... crystal silicon was experimentally characterized to better understand its effects on thin films response to μ LSP . The experimental result is favorably compared with finite element method simulation based on single-crystal plasticity. In this paper, shock peened copper thin films on (004) single...
Journal Articles
Article Type: Technical Papers
J. Manuf. Sci. Eng. April 2007, 129(2): 352–359.
Published Online: August 22, 2006
... and hardening models. 24 02 2006 22 08 2006 deep drawing forming processes aluminium stress-strain relations numerical analysis plasticity Springback has been a significant issue for automotive sheet metal stamping, especially with increased usage of lightweight materials...