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This research aims to quantify the uncertainty associated with bolt failure under varying loading rates to inform structural design.

January 25, 2026ce/papersOpen Access

Experimental Quantification of High‐Strength Bolt Fracture Uncertainty under Varying Loading Rates

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Experimental study quantifies bolt fracture uncertainty in high-strength connections, indicating impacts on structural performance.

This research aims to quantify the uncertainty associated with bolt failure under varying loading rates to inform structural design.
Conducted experimental study with 200 high-strength bolt assemblies of varying diameters and grades.
Subjected bolts to uniaxial tension at loading rates from 0.05 mm/sec to 80 mm/sec.
Measured bolt elongation at onset of necking and complete rupture to assess uncertainty.
Developed empirical trilinear model linking bolt parameters to failure behavior.
Quantified uncertainty in bolt elongation at both necking onset and complete rupture.
Established correlations between geometric/material parameters and critical response metrics.
Demonstrated implications of bolt fracture uncertainty on the ductility of steel connections.

Ding et al. (2025) studied this question.

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January 25, 2026ce/papersOpen Access

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Authors

Experimental study quantifies bolt fracture uncertainty in high-strength connections, indicating impacts on structural performance.

This research aims to quantify the uncertainty associated with bolt failure under varying loading rates to inform structural design.
Conducted experimental study with 200 high-strength bolt assemblies of varying diameters and grades.
Subjected bolts to uniaxial tension at loading rates from 0.05 mm/sec to 80 mm/sec.
Measured bolt elongation at onset of necking and complete rupture to assess uncertainty.
Developed empirical trilinear model linking bolt parameters to failure behavior.
Quantified uncertainty in bolt elongation at both necking onset and complete rupture.
Established correlations between geometric/material parameters and critical response metrics.
Demonstrated implications of bolt fracture uncertainty on the ductility of steel connections.

Ding et al. (2025) studied this question.

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