NIST Special PublicationThe Institute, 2002 |
From inside the book
Results 1-5 of 8
Page 224
... resetting technique , included into ABAQUS via a UMAT that eliminates all accumulated plastic strains for material once it exceeds the solidus temperature . RESULTS AND DISCUSSION The first set of results presented in 224.
... resetting technique , included into ABAQUS via a UMAT that eliminates all accumulated plastic strains for material once it exceeds the solidus temperature . RESULTS AND DISCUSSION The first set of results presented in 224.
Page 225
... resetting algorithm effectively reduces the equivalent plastic strain for Point A1 to zero while the material melts and re - melts . Thus , the analyses that do not include resetting accumulate significantly more plastic strain than the ...
... resetting algorithm effectively reduces the equivalent plastic strain for Point A1 to zero while the material melts and re - melts . Thus , the analyses that do not include resetting accumulate significantly more plastic strain than the ...
Page 226
... resetting of the strains . This unchanged yield surface produces a constant residual stress since the stress state must remain on the yield surface during plastic flow . Figure 7 shows the variation of hoop stress with time for the ...
... resetting of the strains . This unchanged yield surface produces a constant residual stress since the stress state must remain on the yield surface during plastic flow . Figure 7 shows the variation of hoop stress with time for the ...
Page 227
welding distortion . By resetting the strain , the difference in distortion predictions for isotropic and kinematic hardening decreases significantly . ACKNOWLEDGEMENTS The authors of this paper would like to acknowledge the help and ...
welding distortion . By resetting the strain , the difference in distortion predictions for isotropic and kinematic hardening decreases significantly . ACKNOWLEDGEMENTS The authors of this paper would like to acknowledge the help and ...
Page 228
... resetting with resetting Equivalent Plastic Strain 0.12 ( b ) 0.08 0.04 0.00 0.00 0 2 Time , sec 4 6 5010 w / o resetting with resetting 5020 5030 Time , sec Figure 3. Variation of equivalent plastic strain , Pl , with time for Point A ...
... resetting with resetting Equivalent Plastic Strain 0.12 ( b ) 0.08 0.04 0.00 0.00 0 2 Time , sec 4 6 5010 w / o resetting with resetting 5020 5030 Time , sec Figure 3. Variation of equivalent plastic strain , Pl , with time for Point A ...
Contents
3 | |
21 | |
31 | |
39 | |
47 | |
57 | |
71 | |
79 | |
147 | |
155 | |
173 | |
183 | |
203 | |
211 | |
223 | |
233 | |
87 | |
97 | |
105 | |
117 | |
125 | |
137 | |
241 | |
251 | |
265 | |
281 | |
297 | |
317 | |
Other editions - View all
Common terms and phrases
algorithm analysis angular distortion arc length arc voltage average current boundary butt weldment calculated camera detachment during peak developed droplet detachment dynamic effect electrode equation experimental Figure filler metal Friction Stir Welding geometry GMAW GMAW-P GTA weld GTAW hoop stress increase interface keyhole laser machine vision martensite material measured mechanical melting metal arc welding method microstructure mm/min mode molten pool monitoring NIST oscillation frequency peak duration penetration plasma arc welding plate predicted procedure pulsed current resetting residual stress robot rotational sensor shear stress shielding gas shown in Fig splash strain structure surface technique Technology temperature distribution thermal types of droplet variation VPPAW waveform weld diameter weld fixture weld joint weld pool weld quality welding current Welding Journal welding parameters welding power supply welding process welding simulation welding speed welding voltage width wire feed speed workpiece zone
Popular passages
Page ii - Certain commercial equipment, instruments, or materials are identified in this paper in order to adequately specify the experimental procedure. Such identification does not imply recommendation or endorsement by the National Institute of Standards and Technology, nor does it imply that the materials or equipment identified are necessarily the best available for the purpose.
Page 96 - Proceedings of the institution of Mechanical Engineers; Part B: Journal of Engineering Manufacture, Vol. 207, pp.9- 1 4, 1 993 [4] Soar RC and Dickens, PM, "Design of Laminated Tooling for High Pressure Die -Casting," Proceedings-SPIE The international society for Optical Engineering, pp.
Page 125 - Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy.