A local digital twin approach for identifying, locating and sizing cracks in CHS X-joints subjected to brace axial loading

EWW Cheok, X Qian, C Chen, ST Quek, MBI Si - Engineering Structures, 2024 - Elsevier
This paper aims to introduce a strain-interfaced local digital twin solution for a welded
circular hollow section (CHS) X-joint subjected to brace axial loading. The solution …

Experimental and Data-Driven analysis on compressive strength of steel fibre reinforced high strength concrete and mortar at elevated temperature

S Li, JYR Liew - Construction and Building Materials, 2022 - Elsevier
The compressive strength of concrete and mortar under thermal exposure can be
determined using the method of elevated-temperature strength test or residual strength test …

Resistance and strain during tearing for tubular joints under reversed axial actions

T Liu, X Qian, W Wang, Y Chen - Journal of Constructional Steel Research, 2024 - Elsevier
This article aims to predict the load versus crack growth (P− Δ a) and strain versus crack
extension (ε− Δ a) relations in the ductile tearing process of welded joints made from circular …

Enhanced real-time crack monitoring and updating in welded structural components with limited measurement data

L Feng, X Qian - Mechanical Systems and Signal Processing, 2023 - Elsevier
This paper presents an enhanced neural network-bootstrap particle filtering algorithm to
construct the complex relationship between the normalized strain relaxation indicators and …

Research on vibration fatigue and failure mechanism of the wire bracket for high-speed train

Z Dong, W Wang, S Dai, G Li - Engineering Failure Analysis, 2023 - Elsevier
A wire bracket is a cantilever structure connected to the axle box of a high-speed train. Its
force is complex and it is prone to vibration fatigue failure. Combined with fracture analysis …

Online monitoring of crack depth in fiber reinforced composite beams using optimization Grey model GM (1, N)

TS Kumar, KV Rao, M Balaji, P Murthy… - Engineering Fracture …, 2022 - Elsevier
The existing analytical and numerical simulation models are not able to estimate the crack
depth when poor information available about the crack. The present study is aimed to …

Fatigue assessment of U-rib full penetration welded joints based on local methods

K Wang, Z Jie, S Liang, P Zhuge - Journal of Constructional Steel Research, 2023 - Elsevier
Experimental and numerical methods were used to carry out fatigue assessment of double-
sided full penetration U-rib welded joints with different deck thicknesses in Orthotropic …

A ductile tearing assessment diagram for cracked circular-hollow-section joints under reversed loadings

T Liu, X Qian, W Wang, Y Chen - Marine Structures, 2023 - Elsevier
This paper proposes a ductile tearing assessment diagram (TAD) to predict the load
resistance to the crack extension relationship during the stable tearing process of the …

Optimization‐improved thermal–mechanical simulation of welding residual stresses in welded connections

L Wang, X Qian - Computer‐Aided Civil and Infrastructure …, 2024 - Wiley Online Library
This paper presents a novel computer‐aided computational framework to determine the
optimum shape parameters in a welding heat source model using a coupled supervised …

Fatigue crack growth and life assessment of full penetration U-rib welded joints considering residual stresses

H Zheng, Z Jie, L Zhang, W Lu - Thin-Walled Structures, 2024 - Elsevier
The combination of cyclic stresses and welding residual stresses (WRS) can significantly
contribute to fatigue cracking in steel bridge decks. This study aims to investigate the effect …