Hong Tae Kang
University of Michigan
DurabilitySpot weldingUltimate tensile strengthEngineeringFatigue limitFinite element methodComposite materialMetallurgyMaterials scienceWeldingJoint (geology)Magnesium alloyCarbon fiber reinforced polymerStructural stressAluminiumFiberMagnesiumVibration fatigueStructural engineeringAdhesiveStress (mechanics)
83Publications
17H-index
894Citations
Publications 80
Newest
#1Hong Tae Kang (UM: University of Michigan)H-Index: 17
#2G. Reyes-Villanueva (UM: University of Michigan)H-Index: 3
Lightweight thermoplastic-based fiber-metal laminates were developed based on a self-reinforced polypropylene and a glass fiber-reinforced polypropylene composite material with two sheets of aluminum alloy 2024-T3. The laminates were manufactured using a fast one step cold press manufacturing procedure. The mechanical behavior of the laminates was then investigated under tensile and fatigue loading conditions. The tensile properties of the plain aluminum, the composite materials, and the thermop...
2 CitationsSource
#1Hong Tae Kang (UM: University of Michigan)H-Index: 17
The author proposes a fatigue prediction method for spot welded joints in automotive body structures using an equivalent structural stress at the edge of spot welds. The proposed fatigue prediction method is developed by substituting the stress components in von Mises equation to the local structural stresses at the vicinity of spot weld. The structural stresses at the edges of the weld nugget in each sheet are calculated using the forces and moments that are determined by finite element analysi...
27 CitationsSource
#1Jungme ParkH-Index: 11
#2Hong Tae Kang (UM: University of Michigan)H-Index: 17
In this research, the authors developed back-propagation neural networks (BNNs) to predict the fatigue life of spot welds subjected to various geometric factors and loading conditions. This paper described the developing procedures of the BNNs in detail for the spot weld fatigue. Then, the BNNs developed in this study were employed to predict the fatigue life of the spot welds subjected to combined tension and shear loading and tensile-shear loading. The BNNs showed reasonable accuracy for the c...
24 CitationsSource
#1Pranava K. Sistla (UM: University of Michigan)H-Index: 1
#2Hong Tae Kang (UM: University of Michigan)H-Index: 17
Last. Jirachai Buddhakulsomsiri (UM: University of Michigan)H-Index: 10
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Source
#1John Joseph Francis Bonnen (Ford Motor Company)H-Index: 9
#2Hari Agrawal (Ford Motor Company)H-Index: 6
Last. Benda Yan (Mittal Steel Company)H-Index: 2
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26 CitationsSource
#1Nikhil Bhat (UM: University of Michigan)H-Index: 2
#2Hong Tae Kang (UM: University of Michigan)H-Index: 17
Last. Vivek D. Bhise (UM: University of Michigan)H-Index: 7
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1 CitationsSource
In this paper, the author proposes a fatigue damage parameter of spot welded joints under proportional loading. The proposed fatigue damage parameter is developed based on von Mises’ equivalent stress and local structural stress at the edge of spot weld nugget. The structural stress at the edges of the weld nugget in each sheet is calculated using the forces and moments that are determined by finite element analysis. A structural equivalent stress is then calculated by von Mises’ equivalent stre...
15 Citations
#1Mark E. Barkey (UA: University of Alabama)H-Index: 20
#2Hong Tae Kang (UA: University of Alabama)H-Index: 17
Last. Yung-Li Lee (UA: University of Alabama)H-Index: 1
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Combined loading fatigue tests were conducted on spot welded coupons of a galvanized sheet steel for proportional, constant amplitude loading conditions. The factors that influence the failure modes of the coupons are described and photographs of typical failure modes are presented in addition to the fatigue life results of the tests. The fatigue crack initiation sites for all of the tests were at the edge of the spot weld nugget at the sheet interface. The applied load amplitude and nugget diam...
25 CitationsSource
#1Hong Tae Kang (UA: University of Alabama)H-Index: 17
#2Mark E. Barkey (UA: University of Alabama)H-Index: 20
Last. Yung-Li Lee (Daimler AG)H-Index: 13
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Abstract The authors have conducted set of experiments to study the effects of combined tension and shear loads on the fatigue life of spot welded joints. The fatigue life of the specimens depended on the applied load amplitude, the ratio of shear to normal loading, and spot weld nugget diameter. The lower load amplitudes had longer fatigue lives, as did the cases which contained a higher amount of shear loading and specimens with a larger nugget diameter. Based on the test results, Swellam and ...
62 CitationsSource
#1Hong Tae Kang (UA: University of Alabama)H-Index: 17
#2Mark E. Barkey (UA: University of Alabama)H-Index: 20
A numerical interpolation/extrapolation technique is presented that can utilize the fatigue life and strength databases of spot welded joints that have been developed by previous researchers. These databases typically included multiple independent variables, such as specimen dimension and type, material property, R-ratio, and welding condition, such as are often encountered in a typical design of experiments approach to testing. In this study, Rule's interpolation technique is modified and a new...
17 CitationsSource