Pressure vessel steel is widely used in various industries and is subjected to complex loading conditions during operation.Understanding the mechanical behavior of pressure vessel steel under different loading conditions is crucial to ensure its safe and reliable performance.This article introduces some methods and results of biaxial tensile testing,analyzes the correlation between biaxial and uniaxial tensile performance,and focuses on comparing the mechanical properties of pressure vessel steel under biaxial tensile conditions.By better understanding the mechanical performance of pressure vessel steel under complex loading conditions,engineers and researchers can design appropriate structures and select materials that meet specific performance requirements to ensure the safe and reliable operation of pressure vessels.
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