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March 13, 2026Journal of Pipeline Science and EngineeringOpen Access

Experimental and numerical investigation into the influence of galling on liner wrinkling behaviour in mechanically lined pipes

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Authors

MKMeysam KhodaeiARAhmed RedaASAdam Karl Schwartzkopff

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Overview

Experimental and numerical methods reveal galling triggers liner wrinkling in mechanically lined pipes, indicating improved design frameworks.

Key Points

  • This investigation explores how galling affects the wrinkling behavior of mechanically lined pipes (MLPs).
  • Conducted full-scale bending tests on MLPs with galling defects and a finite element model.
  • Validated the mechanical response of MLPs with natural galling through experimental and numerical approaches.
  • Performed a parametric study to assess the influence of galling height and position on stability.
  • Galling reduced the onset strain for wrinkling by 32% without affecting the overall bending stiffness.
  • Identified galling height and circumferential position as major instability drivers.
  • Proposed a new design framework that improves existing DNV predictions for wrinkling resistance.

Cite This Study

Khodaei et al. (2026) studied this question.

synapsesocial.com/papers/69b3ac0a02a1e69014ccd6d7https://doi.org/10.1016/j.jpse.2026.100475
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