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The aim is to develop a practical fatigue crack growth assessment method for fillet weld roots that overcomes limitations of existing approaches.

A Novel Fatigue Assessment Method for Fillet Weld Roots Based on Fatigue Crack Growth

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Proposes a fatigue crack growth framework for assessing weld roots, suggesting improved design applications.

The aim is to develop a practical fatigue crack growth assessment method for fillet weld roots that overcomes limitations of existing approaches.
Developed a fatigue crack growth framework using a virtual initial flaw concept.
Validated the framework with T-type specimens and excavator welds.
Derived predictive equations for virtual flaw size based on plate thickness and weld leg length.
Showed excellent agreement with the effective notch stress method, with less than 10% deviation in fatigue life.
Optimized weld leg length from 9.5 mm to 8.0 mm while preserving structural integrity.

Kim et al. (2026) studied this question.

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View Full Paper

Ask AI

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Authors

Proposes a fatigue crack growth framework for assessing weld roots, suggesting improved design applications.

The aim is to develop a practical fatigue crack growth assessment method for fillet weld roots that overcomes limitations of existing approaches.
Developed a fatigue crack growth framework using a virtual initial flaw concept.
Validated the framework with T-type specimens and excavator welds.
Derived predictive equations for virtual flaw size based on plate thickness and weld leg length.
Showed excellent agreement with the effective notch stress method, with less than 10% deviation in fatigue life.
Optimized weld leg length from 9.5 mm to 8.0 mm while preserving structural integrity.

Kim et al. (2026) studied this question.

View Full Paper

Ask AI

Bookmark