Product Overview:
n this tutorial, we examine the simulation of dynamic bolt failure in a joint consisting of steel plates and bolts using Abaqus. The upper and lower steel plates are modeled as three-dimensional solid parts, while the bolts are also modeled as three-dimensional solid parts.

Ductile metal fractures can be attributed to two primary mechanisms:

1. Ductile Fracture – Resulting from the nucleation, growth, and coalescence of voids.
2. Shear Fracture – Resulting from shear band localization.

Based on these mechanisms, different criteria are utilized to predict the onset of damage. The ductile criterion serves as a phenomenological model for predicting damage due to void behavior, whereas the shear criterion predicts damage associated with shear band effects. To effectively observe failure and damage within the simulation, both criteria are implemented.

A dynamic explicit step utilizing a mass-scaling technique is employed to model the dynamic failure of the bolts. Surface-to-surface interactions with specified properties, including friction, are defined among the components. Fixed boundary conditions are applied to both sides of the bedplate, while displacement with smooth amplitude is used to apply a uniform load to the upper steel plate. It is crucial to ensure a fine mesh, which can be accomplished through the use of several partitions for improved accuracy.

After running the simulation, a comprehensive set of results—including stress, strain, damage, failure, and displacement—becomes available.