Overview of the geometrical influence on the fatigue strength of steel butt welds by a nonlocal approach

2019 ◽  
Vol 43 (3) ◽  
pp. 502-514
Author(s):  
Paolo Livieri ◽  
Roberto Tovo
Keyword(s):  
Fatigue Strength ◽  
Butt Welds ◽  
Nonlocal Approach

scholarly journals Fatigue Strength Enhancement of Butt Welds by Means of Shot Peening and Clean Blasting

Metals ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 744 ◽  
Author(s):  
Jonas Hensel ◽  
Hamdollah Eslami ◽  
Thomas Nitschke-Pagel ◽  
Klaus Dilger
Keyword(s):  
Aluminum Alloy ◽  
Fatigue Strength ◽  
Surface Treatment ◽  
Shot Peening ◽  
Surface Preparation ◽  
High Strength ◽  
Butt Welds ◽  
Strength Enhancement ◽  
Lack Of Control ◽  
Mechanical Surface

Shot peening is a mechanical surface treatment to improve the fatigue strength of metallic components. Similarities exist between regular shot peening and conventional industrial clean blasting. However, the main difference between these two processes is the peening media used and the lack of control and documentation of peening parameters. The clean blasting process is not yet qualified to optimize fatigue enhancement, although it holds a similar potential to regular shot peening. Clean blasting is frequently applied to welded components, with the purpose of surface preparation for application of corrosion protection. This article presents the results of regular shot peened double V-groove (DV) butt welds made from construction steels S355N and S960QL, as well as the high strength aluminum alloy Al-6082. The peening parameters are varied widely. Furthermore, the effect of coverage and intensity is investigated to test the robustness of the peening processes. The data is completed with industrially clean blasted welds, representing typical workshop conditions. The overall objective of this work is to derive minimum peening parameters that still allow significant fatigue strength benefits. The presented data show a high robustness of the fatigue results to peening parameters.

Influence of misalignment on the fatigue strength of butt welds

1991 ◽  
Vol 13 (5) ◽  
pp. 405-409 ◽  
Author(s):  
J FERREIRA ◽  
C BRANCO
Keyword(s):  
Fatigue Strength ◽  
Butt Welds

scholarly journals On the Fatigue Strength of Longitudinal Butt Welds of High Tensile Strength Structural Steel Plates

1958 ◽  
Vol 7 (53) ◽  
pp. 82-86
Author(s):  
Ichiro KONISHI ◽  
Otomaro TAKAGI ◽  
Kijuro SHIMADA
Keyword(s):  
Tensile Strength ◽  
Fatigue Strength ◽  
Structural Steel ◽  
Steel Plates ◽  
High Tensile Strength ◽  
Butt Welds

Fatigue Strength of butt Welds

1985 ◽  
Vol 17 (3) ◽  
pp. 67
Author(s):  
V. M. Radhakrishnan
Keyword(s):  
Fatigue Strength ◽  
Butt Welds

STOCHASTIC CALCULATION OF LIFETIME PREDICTION FOR COMPONENTS IN METAL STRUCTURES DUE TO THE GROWTH OF MICRODEFECTS

2020 ◽  
Vol 4 (97) ◽  
pp. 69-76
Author(s):  
IGOR N. SILVERSTOV
Keyword(s):  
Fatigue Strength ◽  
Fracture Mechanics ◽  
Stochastic Approach ◽  
Fatigue Curve ◽  
Probability Of Failure ◽  
Lifetime Prediction ◽  
Statistical Distributions ◽  
Metal Structures

A stochastic approach has been developed to evaluate fatigue strength using elements of the fracture mechanics. The article presents a method for determining the initial parameters of statistical distributions. It also considers the method for constructing a fatigue curve for a component of any size and configuration with any given probability of failure.

Fatigue. Effects of Short Fiber Reinforcement and Mean Stress on Tensile Fatigue Strength Characteristics of Polyetheretherketon.

1997 ◽  
Vol 46 (10) ◽  
pp. 1197-1203 ◽  
Author(s):  
Harumi FURUE ◽  
Katsunobu NONAKA ◽  
Yasuhiko HASHIMURA
Keyword(s):  
Fatigue Strength ◽  
Fiber Reinforcement ◽  
Short Fiber ◽  
Strength Characteristics ◽  
Mean Stress ◽  
Tensile Fatigue
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