TS SPECIMEN LIFE PREDICTION OF HIGH-STRENGTH STEEL RESISTANCE SPOT WELDS
The plastic zone in crack tip influences life prediction result when using crack propagation method to predict fatigue life of spot welds. Most of the methods used to predict fatigue life don’t take plasticity into consideration. In this paper,TS specimen fatigue life of several high strength steels...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Strength
2016-01-01
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| Series: | Jixie qiangdu |
| Subjects: | |
| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2016.05.011 |
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| author | ZHANG Yu LI DaYong TANG WeiQin |
| author_facet | ZHANG Yu LI DaYong TANG WeiQin |
| author_sort | ZHANG Yu |
| collection | DOAJ |
| description | The plastic zone in crack tip influences life prediction result when using crack propagation method to predict fatigue life of spot welds. Most of the methods used to predict fatigue life don’t take plasticity into consideration. In this paper,TS specimen fatigue life of several high strength steels are tested and crack propagation method is used to predict theoretical fatigue life of TS specimen. Plasticity in crack tip is taken into consideration to modify the life prediction result. Predicted life in high cycle fatigue area barely change while life in low cycle fatigue area decrease after plastic modification. The modified life prediction result is in good agreement with experiment data. In high cycle fatigue area,plastic zone radium is small and has little influence on fatigue life because of low load. In low cycle fatigue area,plastic zone radium is big and influence life prediction result because of high load. |
| format | Article |
| id | doaj-art-03c0606f63eb4bd29625dffbb3070d7f |
| institution | Kabale University |
| issn | 1001-9669 |
| language | zho |
| publishDate | 2016-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj-art-03c0606f63eb4bd29625dffbb3070d7f2025-01-15T02:35:39ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692016-01-013896296630596270TS SPECIMEN LIFE PREDICTION OF HIGH-STRENGTH STEEL RESISTANCE SPOT WELDSZHANG YuLI DaYongTANG WeiQinThe plastic zone in crack tip influences life prediction result when using crack propagation method to predict fatigue life of spot welds. Most of the methods used to predict fatigue life don’t take plasticity into consideration. In this paper,TS specimen fatigue life of several high strength steels are tested and crack propagation method is used to predict theoretical fatigue life of TS specimen. Plasticity in crack tip is taken into consideration to modify the life prediction result. Predicted life in high cycle fatigue area barely change while life in low cycle fatigue area decrease after plastic modification. The modified life prediction result is in good agreement with experiment data. In high cycle fatigue area,plastic zone radium is small and has little influence on fatigue life because of low load. In low cycle fatigue area,plastic zone radium is big and influence life prediction result because of high load.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2016.05.011Crack propagationTS specimenFatigue life predictionPlasticity |
| spellingShingle | ZHANG Yu LI DaYong TANG WeiQin TS SPECIMEN LIFE PREDICTION OF HIGH-STRENGTH STEEL RESISTANCE SPOT WELDS Jixie qiangdu Crack propagation TS specimen Fatigue life prediction Plasticity |
| title | TS SPECIMEN LIFE PREDICTION OF HIGH-STRENGTH STEEL RESISTANCE SPOT WELDS |
| title_full | TS SPECIMEN LIFE PREDICTION OF HIGH-STRENGTH STEEL RESISTANCE SPOT WELDS |
| title_fullStr | TS SPECIMEN LIFE PREDICTION OF HIGH-STRENGTH STEEL RESISTANCE SPOT WELDS |
| title_full_unstemmed | TS SPECIMEN LIFE PREDICTION OF HIGH-STRENGTH STEEL RESISTANCE SPOT WELDS |
| title_short | TS SPECIMEN LIFE PREDICTION OF HIGH-STRENGTH STEEL RESISTANCE SPOT WELDS |
| title_sort | ts specimen life prediction of high strength steel resistance spot welds |
| topic | Crack propagation TS specimen Fatigue life prediction Plasticity |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2016.05.011 |
| work_keys_str_mv | AT zhangyu tsspecimenlifepredictionofhighstrengthsteelresistancespotwelds AT lidayong tsspecimenlifepredictionofhighstrengthsteelresistancespotwelds AT tangweiqin tsspecimenlifepredictionofhighstrengthsteelresistancespotwelds |