THE EFFECT OF STRESS RELAXATION ON WHISKER GROWTH ESTIMATION
To describe the phenomenon of the stress generation and stress relaxation occurring simultaneously in the process of whisker growth,a UMAT subroutine in Abaqus is developed to solve the elasto-plastic creep constitutive model by means of the return-mapping algorithm.The finite element simulations sh...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Strength
2015-01-01
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| Series: | Jixie qiangdu |
| Subjects: | |
| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2015.05.003 |
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| author | QIANG Lei HUANG ZaiXing XIAO Ye GAO Jun |
| author_facet | QIANG Lei HUANG ZaiXing XIAO Ye GAO Jun |
| author_sort | QIANG Lei |
| collection | DOAJ |
| description | To describe the phenomenon of the stress generation and stress relaxation occurring simultaneously in the process of whisker growth,a UMAT subroutine in Abaqus is developed to solve the elasto-plastic creep constitutive model by means of the return-mapping algorithm.The finite element simulations show that,compared with the elasto-plastic model in Abaqus,the elasto-plastic creep constitutive model characterizes the stress relaxation of material better.Using this subroutine,we calculate the change of stress in a specimen of Pb-free solder.In terms of the change of stress,the whisker growth rate is evaluated.And the effect of the grain size on the whisker growth rate is discussed. |
| format | Article |
| id | doaj-art-1a0c28ea05b34d97a61015411b6c7a75 |
| institution | Kabale University |
| issn | 1001-9669 |
| language | zho |
| publishDate | 2015-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj-art-1a0c28ea05b34d97a61015411b6c7a752025-01-15T02:37:51ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692015-01-013793593930592754THE EFFECT OF STRESS RELAXATION ON WHISKER GROWTH ESTIMATIONQIANG LeiHUANG ZaiXingXIAO YeGAO JunTo describe the phenomenon of the stress generation and stress relaxation occurring simultaneously in the process of whisker growth,a UMAT subroutine in Abaqus is developed to solve the elasto-plastic creep constitutive model by means of the return-mapping algorithm.The finite element simulations show that,compared with the elasto-plastic model in Abaqus,the elasto-plastic creep constitutive model characterizes the stress relaxation of material better.Using this subroutine,we calculate the change of stress in a specimen of Pb-free solder.In terms of the change of stress,the whisker growth rate is evaluated.And the effect of the grain size on the whisker growth rate is discussed.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2015.05.003Sn whiskerStress relaxationReturn-mapping algorithmElasto-plastic creep constitutive model |
| spellingShingle | QIANG Lei HUANG ZaiXing XIAO Ye GAO Jun THE EFFECT OF STRESS RELAXATION ON WHISKER GROWTH ESTIMATION Jixie qiangdu Sn whisker Stress relaxation Return-mapping algorithm Elasto-plastic creep constitutive model |
| title | THE EFFECT OF STRESS RELAXATION ON WHISKER GROWTH ESTIMATION |
| title_full | THE EFFECT OF STRESS RELAXATION ON WHISKER GROWTH ESTIMATION |
| title_fullStr | THE EFFECT OF STRESS RELAXATION ON WHISKER GROWTH ESTIMATION |
| title_full_unstemmed | THE EFFECT OF STRESS RELAXATION ON WHISKER GROWTH ESTIMATION |
| title_short | THE EFFECT OF STRESS RELAXATION ON WHISKER GROWTH ESTIMATION |
| title_sort | effect of stress relaxation on whisker growth estimation |
| topic | Sn whisker Stress relaxation Return-mapping algorithm Elasto-plastic creep constitutive model |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2015.05.003 |
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