Results 71 to 80 of about 321 (170)

Crack initiation characteristics and fatigue property of a high-strength steel in VHCF regime under different stress ratios [PDF]

Fracture and Structural Integrity, 2016
Crack initiation characteristics and fatigue property of a high-strength steel in very-high-cycle fatigue (VHCF) regime under different stress ratios were investigated in this paper.
Xiaolong Liu, Chengqi Sun, Youshi Hong
doaj   +1 more source

Impact of bridge‐specific manufacturing conditions on fatigue of welded joints

Steel Construction, Volume 18, Issue 2, Page 89-98, May 2025.
Abstract Box girders with steel cantilevers are often used in the design of composite steel bridges. The welded joints between the main girder and the transverse system are exposed to fatigue loading. Manual welds are common for which the manufacturing conditions can vary in terms of welding position and environmental settings. It is therefore intended
Raphael Erlemann, Karsten Geißler
wiley   +1 more source

Comparability of Fatigue Strength and Life Estimation of a CF‐PEKK Composite Under Low and Ultrasonic Frequencies Using Time‐Temperature‐Based Approaches

Fatigue &Fracture of Engineering Materials &Structures, Volume 48, Issue 5, Page 2363-2380, May 2025.
ABSTRACT Predicting very high cycle fatigue (VHCF) life in composites is challenging due to the lengthy testing times required by traditional methods. Ensuring compatibility between VHCF and high cycle fatigue (HCF) data presents an additional challenge.
Aravind Premanand, Hanna Schimmelpfeng, Frank Balle   +2 more
wiley   +1 more source

VHCF Behavior of Welded Joints with HFMI Treatment under Moisture Conditions

Welding Journal, 2022
Fatigue tests of cruciform welded joints made of Q355B steel at very-high-cycle fatigue (VHCF) regimes were carried out on as-welded specimens using high-frequency mechanical impact (HFMI) treatment in dry air and water-spray environments, respectively. The influence of the environment on fatigue life was more obvious in the VHCF regime.
ZHIWEI GAO, DONGPO WANG, BAOMING GONG, CAIYAN DENG, SHAOJIE WU, HAI ZHANG   +5 more
openaire   +1 more source

Assessing the Very High Cycle Fatigue Behavior and Frequency Effect of Structural Steel Welds

Fatigue &Fracture of Engineering Materials &Structures, Volume 48, Issue 4, Page 1529-1541, April 2025.
ABSTRACT The very high cycle fatigue behavior of S275J2+N flux‐core arc welded joints was investigated using the ultrasonic fatigue testing method at a loading frequency of 20 kHz. A bespoke specimen design featuring the weld toe was employed to more suitably represent in‐service welded joints than typical ultrasonic fatigue testing specimens.
Andrew England, Yevgen Gorash, Athanasios Toumpis   +2 more
wiley   +1 more source

Comparative Fatigue Analysis of Structural Steels Considering Welding and Surface Effects

Strain, Volume 61, Issue 2, April 2025.
ABSTRACT There are limited data on the very high‐cycle fatigue for structural steel welds for over 10 million cycles. The purpose of this research is a fatigue performance comparison of the welds made of steels S355JR+AR and S275JR+AR. The goal of reaching the gigacycle fatigue domain is achieved using the ultrasonic fatigue testing at 20 kHz.
Yevgen Gorash, Tugrul Comlekci, Carl Walker, Athanasios Toumpis, James Kelly, Andrew England, Lewis Milne   +6 more
wiley   +1 more source

Fatigue Design Curves for Industrial Applications: A Review

Fatigue &Fracture of Engineering Materials &Structures, Volume 48, Issue 3, Page 1001-1021, March 2025.
ABSTRACT In the present paper, a review on the design curves for safe–life fatigue design is provided. The methodologies available in the literature for the assessment of the strain–life and stress–life design curves have been analyzed, focusing also on the industrial practice for the design of critical components.
Andrea Tridello, Carlo Boursier Niutta, Massimo Rossetto, Filippo Berto, Davide S. Paolino   +4 more
wiley   +1 more source

Recent Advances and Perspectives on Coupled Water Electrolysis for Energy‐Saving Hydrogen Production

Advanced Science, Volume 12, Issue 7, February 17, 2025.
Replacing oxygen evolution reaction (OER) with thermodynamically favorable small molecules oxidation reactions to construct coupled water electrolysis systems has been extensively investigated in the last decade. This review focuses on the fundamental principle and development of coupled system, the electrocatalysts design, and proposed mechanism for ...
Jiachen Li, Yuqiang Ma, Xiaogang Mu, Xuanjun Wang, Yang Li, Haixia Ma, Zhengxiao Guo   +6 more
wiley   +1 more source

A Review on Fatigue Characteristics of Nickel‐Aluminum Bronze (NAB): Conventionally Fabricated and Additively Manufactured

Fatigue &Fracture of Engineering Materials &Structures, Volume 48, Issue 2, Page 535-565, February 2025.
ABSTRACT Nickel‐aluminum bronze (NAB) is extensively utilized across various industries, particularly marine applications due to its exceptional corrosion resistance. The mechanical properties of NAB are highly dynamic, and influenced by factors such as manufacturing processes, operating environments, and microstructure.
Mojtaba Roshan, MohammadBagher Mahtabi, Sara Ranjbar Eslamloo, Alireza Behvar, Meysam Haghshenas   +4 more
wiley   +1 more source

Very High Cycle Fatigue Life of Free-Spanning Subsea Pipeline Subjected to Vortex-Induced Vibrations

Journal of Marine Science and Engineering
Free-spanning subsea pipelines subjected to vortex-induced vibrations (VIVs) are particularly prone to fatigue failure. Existing flume observations indicated that the VIVs of a near-bed cylinder may be triggered effectively in moderate shear flows.
Qingyuan Song, Jun Liu, Fuping Gao
doaj   +1 more source