Phase-field digital image correlation for integrated displacement and damage measurements
Abstract
This work presents a novel digital image correlation (DIC) framework for full-field measurements of displacement, strain, and damage, based on a phase field (PF) approach. The idea is to take advantage of the ability of the PF method to track complex crack morphologies and to provide a natural way in DIC to perform damage and crack measurements from experimental speckle images, in addition to displacement and strain fields. Moreover, incorporating the damage variable into DIC can improve the displacement accuracy near the crack tip, and can avoid the need of user-defined masks when dealing with cracked samples, which is advantageous when cracks become complex and the manual application of masks becomes challenging. The theoretical formulation of the proposed framework, namely PF-DIC, was presented in detail in the paper, along with a finite element implementation. Numerical examples have demonstrated the capability of the proposed PF-DIC in terms of capturing different types of cracks while providing similar measurement accuracy to that of masked DIC. Additionally, it is shown that the PF-DIC can be easily adapted to selectively identify critical cracks under specific loading conditions or mechanisms for damage assessment and diagnostic purposes. The proposed DIC framework can be used to characterize material defects, support structural health monitoring, and enable a potential unification of PF simulations and experimental fracture measurements
Related
- Agentic Wireless Digital Twin Construction and Calibration Using Real-World Measurements
- On the stability of displacement energy in toric manifolds
- Drift and joint minimal displacement for groups acting on hyperbolic spaces
- BiLipschitz and bounded displacement equivalence of Delone sets
- Long-time and large-population limits of displacement monotone linear-quadratic Nash systems
BibTeX
@misc{zhu2026phasefield,
title = {{Phase-field digital image correlation for integrated displacement and damage measurements}},
author = {Dingxiang Zhu and Ye Lu},
howpublished = {arXiv},
year = {2026},
month = aug,
doi = {10.48550/arxiv.2606.16850},
eprint = {2606.16850},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2606.16850},
}
RIS
TY - UNPB
TI - Phase-field digital image correlation for integrated displacement and damage measurements
AU - Dingxiang Zhu
AU - Ye Lu
PY - 2026
DA - 2026/08/30
PB - arXiv
DO - 10.48550/arxiv.2606.16850
UR - https://arxiv.org/abs/2606.16850
AB - This work presents a novel digital image correlation (DIC) framework for full-field measurements of displacement, strain, and damage, based on a phase field (PF) approach. The idea is to take advantage of the ability of the PF method to track complex crack morphologies and to provide a natural way in DIC to perform damage and crack measurements from experimental speckle images, in addition to displacement and strain fields. Moreover, incorporating the damage variable into DIC can improve the displacement accuracy near the crack tip, and can avoid the need of user-defined masks when dealing with cracked samples, which is advantageous when cracks become complex and the manual application of masks becomes challenging. The theoretical formulation of the proposed framework, namely PF-DIC, was presented in detail in the paper, along with a finite element implementation. Numerical examples have demonstrated the capability of the proposed PF-DIC in terms of capturing different types of cracks while providing similar measurement accuracy to that of masked DIC. Additionally, it is shown that the PF-DIC can be easily adapted to selectively identify critical cracks under specific loading conditions or mechanisms for damage assessment and diagnostic purposes. The proposed DIC framework can be used to characterize material defects, support structural health monitoring, and enable a potential unification of PF simulations and experimental fracture measurements
ER -