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buaawhyÒø³æ (СÓÐÃûÆø)
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the density of the aluminium is increased with a factor of 2e6(2³ËÒÔ10µÄ6´Î·½£©¡£ |
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cruise008
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2Â¥2012-05-25 17:29:12
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3Â¥2012-05-25 19:25:58
buaawhy
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In a quasi-static simulation of a forming process, the stability requirements result in very small time steps and consequently a large computational time. One possibility of avoiding the time step problem is to speed up the analyses [4]. In the present work, however, the problem is overcome by introduction of mass scaling. Thus, the density of the aluminium is increased with a factor of 2e6. The applicability of this approach is demonstrated in Fig. 7, comparing the results from LS-DYNA with similar analyses performed with the implicit code ABAQUS [14]. As implicit formulations follow the non-linear response very closely through frequent equilibrium checks, the ABAQUS results can be considered as correct within the limitations imposed by the model uncertainties. A total of eight analyses utilising the two alloys AA6082 and AA7108, two die radii and two wall thicknesses is depicted in Fig. 7. The LS-DYNA and ABAQUS results agree well, as |

4Â¥2012-05-26 10:56:24
tuhongyan222
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5Â¥2012-05-27 09:43:46
buaawhy
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6Â¥2012-05-28 09:13:22
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7Â¥2012-05-28 12:14:20
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- Ó¦Öú: 65 (³õÖÐÉú)
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- ÔÚÏß: 363.3Сʱ
- ³æºÅ: 1836091
- ×¢²á: 2012-05-27
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8Â¥2012-05-28 12:16:05
zmy0714
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9Â¥2012-05-30 17:18:22
zmy0714
ÖÁ×ðľ³æ (Ö°Òµ×÷¼Ò)
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- ºì»¨: 8
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- ÔÚÏß: 659Сʱ
- ³æºÅ: 1166841
- ×¢²á: 2010-12-10
- ÐÔ±ð: GG
- רҵ: ¸ß·Ö×Ó²ÄÁϵļӹ¤Óë³ÉÐÍ

10Â¥2012-05-30 17:20:18













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