Multiaxial fatigue assessment of complex steel connections: A case study of a vertical-lift gussetless truss bridge

2021 ◽  
Vol 235 ◽  
pp. 111996
Author(s):  
Sofia Puerto Tchemodanova ◽  
Maryam Mashayekhi ◽  
Masoud Sanayei ◽  
Erin Santini Bell
Keyword(s):  
Multiaxial Fatigue ◽  
Fatigue Assessment ◽  
Steel Connections ◽  
Vertical Lift ◽  
Truss Bridge

scholarly journals Fatigue assessment of existing riveted truss bridges: case study

2015 ◽  
Vol 63 (1) ◽  
pp. 125-133 ◽  
Author(s):  
T. Siwowski
Keyword(s):  
Steel Structures ◽  
Heavy Vehicles ◽  
Fatigue Assessment ◽  
The Road ◽  
Truss Bridges ◽  
Working Lives ◽  
Special Procedure ◽  
Existing Bridges ◽  
Truss Bridge

Abstract Many steel riveted bridges have been built in Poland since 1950 and they have not reached their design working lives yet. Nevertheless, a number of fatigue damages are found, especially with structural joints. Moreover, in the past 25 years the traffic on the Polish road network has increased significantly leading to the increasing number of heavy vehicles in the traffic flows. This may affect the safety, serviceability and durability of existing bridges. The road administration is therefore interested in reliable and agreed methods to assess the safety and durability of existing bridges. The special procedure has been prepared to provide technical insight on the way in which existing steel structures could be assessed and the remaining fatigue life could be estimated. This approach follows the principles and application rules in the Eurocodes and provides a scheme with various levels of analysis: a basic level with general methods and further levels, more complex and sophisticated and requiring specific experience and knowledge. This procedure has been used for the fatigue assessment of the 60-year-old riveted truss bridge. The applied procedure as well as the main results of the assessment have been presented in the paper.

Multiaxial fatigue assessment of jacket-supported offshore wind turbines considering multiple random correlated loads

2021 ◽  
Vol 169 ◽  
pp. 1252-1264
Author(s):  
Chaoshuai Han ◽  
Kun Liu ◽  
Yongliang Ma ◽  
Peijiang Qin ◽  
Tao Zou
Keyword(s):  
Wind Turbines ◽  
Multiaxial Fatigue ◽  
Offshore Wind ◽  
Fatigue Assessment ◽  
Offshore Wind Turbines

scholarly journals Multiaxial fatigue criteria for prestressed strengthening of steel connections

2021 ◽  
pp. 106470
Author(s):  
Hossein Heydarinouri ◽  
Alain Nussbaumer ◽  
Masoud Motavalli ◽  
Elyas Ghafoori
Keyword(s):  
Multiaxial Fatigue ◽  
Steel Connections

scholarly journals Multiaxial fatigue assessment of friction stir welded tubular joints of Al 6082-T6

2017 ◽  
Vol 101 ◽  
pp. 282-296 ◽  
Author(s):  
L. Susmel ◽  
D.G. Hattingh ◽  
M.N. James ◽  
R. Tovo
Keyword(s):  
Multiaxial Fatigue ◽  
Fatigue Assessment ◽  
Friction Stir ◽  
Tubular Joints

scholarly journals The elasto-plastic Point Method to estimate fatigue lifetime of notched metallic materials under variable amplitude multiaxial fatigue loading

2019 ◽  
Vol 300 ◽  
pp. 13004
Author(s):  
Namiq Zuhair Faruq ◽  
Luca Susmel
Keyword(s):  
Biaxial Loading ◽  
Fatigue Loading ◽  
Medium Carbon Steel ◽  
Multiaxial Fatigue ◽  
Point Method ◽  
Assessment Procedure ◽  
Fatigue Lifetime ◽  
Fatigue Assessment ◽  
Variable Amplitude ◽  
Strain Components

The present paper deals with the formulation and implementation of a novel fatigue lifetime estimation technique suitable for designing notched components against multiaxial fatigue. This fatigue assessment procedure was devised by combining the Modified Manson-Coffin Curve Method and the Shear Strain-Maximum Variance Method with the elasto-plastic Point Method. The accuracy of the approach being proposed was checked against a large number of experimental results that were generated by testing notched cylindrical samples of medium-carbon steel En8. These tests were run under proportional/non-proportional constant/variable amplitude biaxial loading, with the effect of non-zero mean stresses and different frequencies between the axial and torsional stress/strain components being also investigated. The results from this validation exercise demonstrate that the novel multiaxial fatigue assessment methodology being proposed is highly accurate, with its systematic usage resulting in predictions falling within an error factor of 2. This remarkable level of accuracy is very promising especially in light of the fact that this approach can be applied by directly post-processing the results from elasto-plastic Finite Element (FE) models solved using commercial codes.

Multiaxial fatigue assessment of welded steel details according to the peak stress method: Industrial case studies

2019 ◽  
Vol 125 ◽  
pp. 362-380 ◽  
Author(s):  
Giovanni Meneghetti ◽  
Alberto Campagnolo ◽  
Vittorio Babini ◽  
Matteo Riboli ◽  
Andrea Spagnoli
Keyword(s):  
Case Studies ◽  
Peak Stress ◽  
Multiaxial Fatigue ◽  
Welded Steel ◽  
Fatigue Assessment
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