Practical failure analysis of resistance spot welded advanced high-strength steel sheets

2017 ◽  
Vol 94 ◽  
pp. 122-147 ◽  
Author(s):  
Kwansoo Chung ◽  
Wooram Noh ◽  
Xin Yang ◽  
Heung Nam Han ◽  
Myoung-Gyu Lee
Keyword(s):  
Failure Analysis ◽  
High Strength Steel ◽  
High Strength ◽  
Advanced High Strength Steel ◽  
Resistance Spot ◽  
Steel Sheets ◽  
Spot Welded

Failure Performance Analysis of Resistance Spot Welded Advanced High Strength Steel Sheets

2015 ◽  
Vol 651-653 ◽  
pp. 895-900 ◽  
Author(s):  
Woo Ram Noh ◽  
Young Woo Koh ◽  
Jong Hwa Hong ◽  
Xin Yang ◽  
Kwan Soo Chung
Keyword(s):  
High Strength Steel ◽  
High Strength ◽  
Tension Test ◽  
Weld Nugget ◽  
Advanced High Strength Steel ◽  
Resistance Spot ◽  
Steel Sheets ◽  
Lap Shear ◽  
Simple Tension ◽  
Spot Welded

A numerical method to predict failure performance was developed for resistance spot welded AHSS (advanced high strength steel) sheets in this work and applied for a TRIP (transformation induced steel sheets) 980 sheet. For the numerical analysis, utilizing the numerical inverse calibration method, hardening data and fracture criteria were characterized for the base and the weld nugget based on the standard simple tension test and a newly designed miniature tension test, respectively. The characterized properties of the base and the weld nugget were then applied to analyze failure performance in the coupon tests of the lap-shear and U-shape tension tests carried out for welded sheets. The analysis was performed under the quasi-static condition in this early effort and showed reasonably good agreement with experiments both in failure modes and strength.

The effect of martensitic transformation on residual stress in resistance spot welded high-strength steel sheets

2013 ◽  
Vol 577 ◽  
pp. S684-S689 ◽  
Author(s):  
Muneyoshi Iyota ◽  
Yoshiki Mikami ◽  
Tadafumi Hashimoto ◽  
Koichi Taniguchi ◽  
Rinsei Ikeda ◽  
...  
Keyword(s):  
Residual Stress ◽  
Martensitic Transformation ◽  
High Strength Steel ◽  
High Strength ◽  
Resistance Spot ◽  
Steel Sheets ◽  
Spot Welded

Effects of Tempering Treatment on Fatigue Strength of Resistance Spot Welded High-strength Steel Sheets

2018 ◽  
Vol 2018 (0) ◽  
pp. GS0105
Author(s):  
Momoko ADACHI ◽  
Akira SATO ◽  
Shoh MATSUI ◽  
Seiji FURUSAKO ◽  
Izuru NISHIKAWA ◽  
...  
Keyword(s):  
Fatigue Strength ◽  
High Strength Steel ◽  
High Strength ◽  
Resistance Spot ◽  
Steel Sheets ◽  
Tempering Treatment ◽  
Spot Welded
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