Jaehyeok Doh
Singapore University of Technology and Design
Deflection (engineering)Service lifeDurabilityComposite numberStatisticsBayesian probabilityMarkov chain Monte CarloUltimate tensile strengthCalibration (statistics)Mathematical optimizationEngineeringGasketFinite element methodPercolationProbability distributionDegradation (geology)Composite materialPower (physics)Automotive engineeringNanotechnologyNatural rubberMaterials scienceMonte Carlo methodPercolation thresholdLethargyControl armStiffnessPolyphenylene oxideReliability based designMaterial propertiesPolymer nanocompositeMathematicsComputer scienceConfidence intervalReliability (statistics)Probabilistic logicHeat transferCarbon nanotubePolymerViscoplasticityHighly accelerated life testStructural engineeringMulti-objective optimizationElectrical resistivity and conductivityStress (mechanics)
29Publications
5H-index
68Citations
Publications 29
Newest
Last. Nagarajan RaghavanH-Index: 22
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#1Jaehyeok Doh (Gyeongnam National University of Science and Technology)H-Index: 5
#2Sang-In Park (Incheon National University)H-Index: 9
Last. Nagarajan Raghavan (SUTD: Singapore University of Technology and Design)H-Index: 22
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Abstract This research focuses on the uncertainty quantification of electrical percolation behavior in wavy carbon nanotube (CNT)-filled polymer nanocomposites with a three-dimensional representative volume element accounting for both tunneling resistance (quantum carrier tunneling) and stochasticity in CNT waviness. The developed percolation model is validated with existing experimental data, and model parameters for electrical conductance converge to the optimal value with Markov Chain Monte C...
1 CitationsSource
#1Su Haeng Hur (Yonsei University)H-Index: 1
#2Jaehyeok Doh (SUTD: Singapore University of Technology and Design)H-Index: 5
Last. Jongsoo Lee (Yonsei University)H-Index: 17
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#1Jaehyeok Doh (SUTD: Singapore University of Technology and Design)H-Index: 5
#2Qing Yang (ZJU: Zhejiang University)H-Index: 32
Last. Nagarajan Raghavan (SUTD: Singapore University of Technology and Design)H-Index: 22
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Abstract In this study, reliability-based robust design optimization (RBRDO) for polymer nanocomposites (PNCs) design is conducted to secure the reliability of design conditions concerning the electrical percolation threshold and carbon nanotube (CNT) aspect ratio as well as the robustness for electrical conductivity. CNT diameter and length are known as following the lognormal and Weibull distributions respectively. To reflect the different probability distributions of CNT geometry parameters a...
3 CitationsSource
#1Jaehyeok Doh (SUTD: Singapore University of Technology and Design)H-Index: 5
#2Sang-In Park (Incheon National University)H-Index: 9
Last. Nagarajan Raghavan (SUTD: Singapore University of Technology and Design)H-Index: 22
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: In this study, the effect on the conductance of polymer nanocomposites considering quantum tunneling resistance is investigated with respect to the chirality of carbon nanotubes (CNTs) and uncertainties in the geometric parameters of CNTs by using Monte Carlo simulations. The random spatial placement for CNTs was accomplished with a one-dimensional line segment and the periodic boundary conditions were applied to CNTs in the two-dimensional representative volume element. Intersection points be...
5 CitationsSource
#1Jaehyeok Doh (SUTD: Singapore University of Technology and Design)H-Index: 5
#2Nagarajan Raghavan (SUTD: Singapore University of Technology and Design)H-Index: 22
Last. Jongsoo LeeH-Index: 17
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#1Jaehyeok DohH-Index: 5
#2Su Haeng HurH-Index: 1
Last. Jongsoo LeeH-Index: 17
view all 3 authors...
1 CitationsSource
#1Jaehyeok Doh (Yonsei University)H-Index: 5
#2Sang-Woo Kim (Hyundai Motor Group)H-Index: 1
Last. Jongsoo Lee (Yonsei University)H-Index: 17
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This study focuses on the design of polymer components considering their degradation under designed operating conditions in automobiles. We use stochastic and statistical methods to ensure that suc...
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