Effect of welding residual stresses on the fatigue life assessment of welded connections

L Wang, X Qian, L Feng - International Journal of Fatigue, 2024 - Elsevier
Welding residual stresses impose significant influences on the fatigue behavior and
structural integrity of welded connections in various engineering applications …

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 …

An adaptive learning approach to determine and update crack sizes from strain relaxation data for welded plate joints

L Feng, X Qian - Engineering Fracture Mechanics, 2022 - Elsevier
This paper proposes the framework to determine and update the crack-front profile at the toe
of welded plate joints based on the strain relaxation data. This study determines the crack …

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 …

Fracture mechanics investigation of crack coalescence in a steel tubular T-joint specimen

S Tanaka, TT Htut, K Maeda, K Yagi… - Engineering Failure …, 2022 - Elsevier
Fatigue test of steel tubular T-joint specimens was performed. A beach mark (BM) technique
was employed to measure the crack size. Some rare fracture patterns were found. One of the …

Notch energy-based low and high cycle fatigue assessment of load-carrying cruciform welded joints considering the strength mismatch

W Song, X Liu, G Zhou, S Wei, D Shi, M He… - International Journal of …, 2021 - Elsevier
This study examines the Low and High Cycle Fatigue failure (LCF and HCF) of Load-
carrying Cruciform Welded Joints (LCWJ) made of 10CrNi3MoV steel through a combined …

Traction stress-based fatigue failure mode identification of load-carrying welded cruciform joints

Z Wei, X Pei, X Qian, S Xing, L Feng, H Jin - International Journal of Fatigue, 2022 - Elsevier
This paper proposes an analytical solution of traction stress at the weld root of load-carrying
welded cruciform joints, incorporating the effects of weld geometry, especially the gap …

Low-cycle fatigue design of welded offshore pipe components: A modern view on ASME B31 code

M Xie, S Xing, J Zhao, Ö KARAKAŞ, Y Li… - International Journal of …, 2022 - Elsevier
The welded pipe components are prone to low-cycle fatigue (LCF) at welds, especially
under extreme loadings. ASME B31. 8 specifies the fatigue design rules of the welded …

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 …

A post‐processing procedure for predicting high‐ and low‐cycle fatigue life of welded structures based on the master EN curve

X Liu, L Lei, S Xing, T Gu, X Li… - Fatigue & Fracture of …, 2023 - Wiley Online Library
This work provides a post‐processing procedure to predict the high‐and low‐cycle fatigue
life of welded structures. The post‐processor calculates the equivalent structural strain …