Limit Load Solutions of Pipe Bends with Various Bend Angles Under Internal Pressure and In-Plane Bending

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The aim is to develop limit load prediction formulas for pipe bends with varying bending angles and thickness under internal pressure and in-plane bending.
Utilized finite element analysis with RIKS option to calculate limit loads for various bend angles and thicknesses.
Evaluated limits for different geometrical conditions, including up to 180-degree bends and various curvature radii.
The proposed prediction formulas showed improved accuracy compared to existing methods, including ASME BPVC limit load calculations.
Limit load predictions were validated across various bending angles and pipe thicknesses, demonstrating enhanced structural integrity assessments.

Finds improved limit load predictions for pipe bends with various geometries, suggesting enhanced safety in design.

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Kim et al. (2026) studied this question.

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