Multiscale characterization of crack-tip plasticity and overload retardation in X80 pipeline steel under variable amplitude loading

Key Points

• Crack-tip plasticity is influenced significantly by overload conditions, affecting the material's performance under stress.
• Key findings indicate that variable amplitude loading impacts material behavior and crack propagation in pipeline steel.
• Observational analysis assesses the interplay of crack behavior and plasticity under varying loads in X80 pipeline steel.
• This study highlights the need for enhanced pipeline designs, emphasizing the role of overload conditions on structural integrity.