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
#1Guanghan Wu (SJTU: Shanghai Jiao Tong University)H-Index: 4
#2Dayong Li (SJTU: Shanghai Jiao Tong University)H-Index: 18
Last. Xuming Su (Ford Motor Company)H-Index: 18
view all 7 authors...
Abstract Fatigue behaviors of hybrid joint, the combination of cold-formed mechanical fastening with adhesive bonding, are yet to be understood comprehensively even though they have been widely used in industries. The lack of understanding is mainly attributed to the complicated load transfer path and possible interactions between the two types of joining techniques, namely mechanical interlocking and adhesive bonding. In the present work, fatigue tests are performed on self-piercing riveted (SP...
2 CitationsSource
#1Haibin Tang (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 5
#2Zhangxing Chen (Ford Motor Company)H-Index: 5
Last. Xuming Su (Ford Motor Company)H-Index: 18
view all 8 authors...
Abstract This study focuses on the notch effect on the fatigue failure of chopped carbon fiber chip-reinforced sheet molding compound (SMC) composites by using both experimental and numerical methods. The S-N diagrams of notched specimens are first obtained experimentally, which exhibit large scatter and are shown to depend on the spatial distribution of local fiber orientations. After considering the effect of this spatial distribution by adopting a new fatigue damage parameter to normalize the...
8 CitationsSource
#1Guanghan Wu (SJTU: Shanghai Jiao Tong University)H-Index: 4
#2Dayong Li (SJTU: Shanghai Jiao Tong University)H-Index: 18
Last. Xuming Su (Ford Motor Company)H-Index: 18
view all 10 authors...
1 CitationsSource
#1Xianjun Sun (UM: University of Michigan)H-Index: 1
#1Xianjun Sun (UM: University of Michigan)H-Index: 5
Last. Hong Tae Kang (UM: University of Michigan)H-Index: 17
view all 6 authors...
The sink mark is one common defect of the injection-molded thermoplastics, which is harmful to the part appearance. A procedure for the sink mark prediction was proposed to build the finite element method (FEM) model in Abaqus. The temperature and pressure distributions were imported as boundary conditions at a different time from the injection molding simulation software Moldflow. The user subroutines UEXPAN and UMAT were coded and implemented in Abaqus to describe the pressure-volume-temperatu...
Source
#1Haibin Tang (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 5
#2Zhangxing Chen (Chongqing University)H-Index: 5
Last. Xuming Su (Ford Motor Company)H-Index: 18
view all 11 authors...
Abstract The material behavior of chopped carbon fiber chip-reinforced Sheet Molding Compound (SMC) composite is investigated under both quasi-static and cyclic fatigue loading conditions in the present study. Quasi-static tensile and compressive strength data is collected, followed by a series of fatigue tests under three different cyclic loading conditions, i.e., Tension-Tension (T-T), Compression-Compression (C-C), and Tension-Compression (T-C). The experimental results show a considerable am...
12 CitationsSource
#1Xianjun Sun (UM: University of Michigan)H-Index: 1
#1Xianjun Sun (UM: University of Michigan)H-Index: 5
Last. Hong Tae Kang (UM: University of Michigan)H-Index: 17
view all 5 authors...
Abstract Injection molded plastics are widely used for mass production in auto industry. However, it is challenge to produce parts that do not warp. It is helpful to have an accurate way to measure the warpage when investigating and solving warpage issues. In this paper, a new technology is introduced to measure the part warpage quickly and accurately with the help of digital image correlation (DIC) method. The polypropylene plaque were fabricated by injection molding based on An L9 (3ˆ4) Taguch...
3 CitationsSource
#1Qingping Sun (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 8
#2Guowei Zhou (OSU: Ohio State University)H-Index: 11
Last. Xuming Su (Ford Motor Company)H-Index: 18
view all 8 authors...
Abstract This study investigates the failure mechanisms of cross-ply laminates subjected to longitudinal compressive loading. A sequence of failure initiation and propagation process is observed based on optical microscopy images of failed specimens. Specifically, the failure process in the cross-ply laminates involves a combination of four failure mechanisms: fiber kinking, delamination, matrix cracking, and fiber/matrix splitting. We find that the kink-bands in the middle 0° plies of the cross...
17 CitationsSource
#1Haibin Tang (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 5
#2Guowei Zhou (OSU: Ohio State University)H-Index: 11
Last. Xuming Su (Ford Motor Company)H-Index: 18
view all 12 authors...
Abstract In present study, the fatigue damage behavior of chopped carbon fiber chip-reinforced composite has been experimentally and numerically investigated. A large scatter is exhibited in the S-N diagram due to the random distribution of carbon fiber chips, and therefore a new analysis procedure is proposed to link the local microstructure to the fatigue behavior of the bulk material. Interrupted fatigue tests are also performed so that microstructure characterization can be conducted on the ...
12 CitationsSource
#1Haolong Liu (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 5
#2A. Ojha (Ford Motor Company)H-Index: 10
Last. Haitao Cui (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 11
view all 9 authors...
Abstract Fatigue tests for unidirectional (UD) CFRP composite specimens of various sizes are conducted under different stress ratios. The results show that the specimen size has considerable influence on the transverse tension-tension fatigue performance of UD laminates. The underlying fatigue mechanisms are also investigated through SEM observations. Moreover, a fatigue life prediction method considering size effects is presented, and a good correlation is observed between the prediction and th...
5 CitationsSource
#1Qingping Sun (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 8
#2Guowei Zhou (OSU: Ohio State University)H-Index: 11
Last. Xuming Su (Ford Motor Company)H-Index: 18
view all 9 authors...
Abstract Failure prediction for carbon fiber reinforced polymer (CFRP) composites has been a longstanding challenge. In this study, we address this challenge by first applying a well-established computational micromechanics model based on representative volume element to predict the failure envelopes of unidirectional (UD) CFRP composites. Then, these failure envelopes are compared with the classical failure criteria. We have evaluated the performances of these failure criteria and identified th...
30 CitationsSource