Adaptive phase-field modeling of dynamic brittle fracture in composite materials
An adaptive phase-field modeling approach is developed for the dynamic brittle fracture of composite materials subjected to impact loading. This approach is capable of capturing the dynamic fracture patterns in composite materials including matrix cracking, delamination between adjacent plies, and i...
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sg-ntu-dr.10356-1647102023-02-10T07:55:30Z Adaptive phase-field modeling of dynamic brittle fracture in composite materials Li, Weidong Nguyen-Thanh, Nhon Du, Hejun Zhou, Kun School of Mechanical and Aerospace Engineering Engineering::Mechanical engineering Dynamic Brittle Fracture Phase-Field Modeling An adaptive phase-field modeling approach is developed for the dynamic brittle fracture of composite materials subjected to impact loading. This approach is capable of capturing the dynamic fracture patterns in composite materials including matrix cracking, delamination between adjacent plies, and interaction between the two failure modes via the exploitation of interface and crack phase fields. The driving force for the crack evolution is derived by introducing the contributions of the longitudinal and transverse damage considering the tension–compression asymmetry. Moreover, an anisotropic crack surface density function is introduced by considering the material anisotropy induced by fibers. The computational efficiency of the dynamic fracture modeling is improved via the adaptive mesh refinement strategy within the framework of the isogeometric-meshfree approach. The Newmark implicit integration scheme is used for the temporal discretization of the phase-field governing equations. Finally, simulations of both mode-I and mixed-mode fracture, such as the dynamic branching and the three-point bending tests, are implemented for homogeneous materials and composites, which demonstrates the reliability of the developed approach. Nanyang Technological University The authors would like to acknowledge the financial support from Nanyang Technological University. 2023-02-10T07:55:30Z 2023-02-10T07:55:30Z 2023 Journal Article Li, W., Nguyen-Thanh, N., Du, H. & Zhou, K. (2023). Adaptive phase-field modeling of dynamic brittle fracture in composite materials. Composite Structures, 306, 116589-. https://dx.doi.org/10.1016/j.compstruct.2022.116589 0263-8223 https://hdl.handle.net/10356/164710 10.1016/j.compstruct.2022.116589 2-s2.0-85144426039 306 116589 en Composite Structures © 2022 Elsevier Ltd. All rights reserved. |
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Engineering::Mechanical engineering Dynamic Brittle Fracture Phase-Field Modeling Li, Weidong Nguyen-Thanh, Nhon Du, Hejun Zhou, Kun Adaptive phase-field modeling of dynamic brittle fracture in composite materials |
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An adaptive phase-field modeling approach is developed for the dynamic brittle fracture of composite materials subjected to impact loading. This approach is capable of capturing the dynamic fracture patterns in composite materials including matrix cracking, delamination between adjacent plies, and interaction between the two failure modes via the exploitation of interface and crack phase fields. The driving force for the crack evolution is derived by introducing the contributions of the longitudinal and transverse damage considering the tension–compression asymmetry. Moreover, an anisotropic crack surface density function is introduced by considering the material anisotropy induced by fibers. The computational efficiency of the dynamic fracture modeling is improved via the adaptive mesh refinement strategy within the framework of the isogeometric-meshfree approach. The Newmark implicit integration scheme is used for the temporal discretization of the phase-field governing equations. Finally, simulations of both mode-I and mixed-mode fracture, such as the dynamic branching and the three-point bending tests, are implemented for homogeneous materials and composites, which demonstrates the reliability of the developed approach. |
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School of Mechanical and Aerospace Engineering |
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School of Mechanical and Aerospace Engineering Li, Weidong Nguyen-Thanh, Nhon Du, Hejun Zhou, Kun |
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Article |
author |
Li, Weidong Nguyen-Thanh, Nhon Du, Hejun Zhou, Kun |
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Li, Weidong |
title |
Adaptive phase-field modeling of dynamic brittle fracture in composite materials |
title_short |
Adaptive phase-field modeling of dynamic brittle fracture in composite materials |
title_full |
Adaptive phase-field modeling of dynamic brittle fracture in composite materials |
title_fullStr |
Adaptive phase-field modeling of dynamic brittle fracture in composite materials |
title_full_unstemmed |
Adaptive phase-field modeling of dynamic brittle fracture in composite materials |
title_sort |
adaptive phase-field modeling of dynamic brittle fracture in composite materials |
publishDate |
2023 |
url |
https://hdl.handle.net/10356/164710 |
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1759058767795716096 |