What question did this study set out to answer?

The aim is to enhance the modeling of rock crack propagation using a refined peridynamics approach.

March 15, 2026Scientific ReportsOpen Access

Non-ordinary state-based peridynamics model for rock crack propagation: a combined stress-energy fracture method

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Demonstrates improved accuracy in crack path prediction in rock using an advanced peridynamics model, suggesting better fracture analysis techniques.

The aim is to enhance the modeling of rock crack propagation using a refined peridynamics approach.
Employs bond-level deformation gradients to improve local deformation compatibility.
Incorporates a triple shear energy criterion for better identification of shear-related states.
Conducts benchmark numerical examples to validate the model's performance.
Achieves accurate simulation of crack initiation, propagation, and coalescence under varying loads.
Demonstrates numerical stability with minimal parameter adjustments.
Offers a more mathematically structured approach compared to existing models.

Gong et al. (2026) studied this question.

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Demonstrates improved accuracy in crack path prediction in rock using an advanced peridynamics model, suggesting better fracture analysis techniques.