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A discrete variational framework for crack propagation via potential energy minimization in the DBEM
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DOI：10.1016/j.enganabound.2026.106841.png)
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Abstract
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• A variational framework for crack growth based on potential energy minimization. • Integration of the PEMA strategy within the Dual Boundary Element Method. • Energy functional evaluation is performed strictly using boundary quantities. • Stable trajectory tracking for interacting cracks and stress concentrators. • High-fidelity results validated against MTS criterion and experimental data.
Keywords:
Crack propagation
Energy-based formulation
Potential energy minimization
Shape sensitivity
Dual Boundary Element Method
Linear elastic fracture mechanics
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