Experimental investigation of interfacial crack arrest in sandwich beams subjected to fatigue loading using a novel crack arresting device

Research output: Contribution to journalJournal article – Annual report year: 2017Researchpeer-review

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Experimental investigation of interfacial crack arrest in sandwich beams subjected to fatigue loading using a novel crack arresting device. / Martakos, G.; Andreasen, J.H.; Berggreen, C.; Thomsen, O.T.

In: Journal of Sandwich Structures and Materials, Vol. 2, No. 2, 2019, p. 401–421.

Research output: Contribution to journalJournal article – Annual report year: 2017Researchpeer-review

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@article{299951534dc24d879560a64de2cfce1a,
title = "Experimental investigation of interfacial crack arrest in sandwich beams subjected to fatigue loading using a novel crack arresting device",
abstract = "A recently proposed face-sheet–core interface crack arresting device is implemented in sandwich beams and tested using the Sandwich Tear Test configuration. Fatigue loading conditions are applied to propagate the crack and determine the effect of the crack stopper on the fatigue growth rate and arrest of the crack. Digital image correlation is used through the duration of the fatigue experiment to track the strain evolution as the crack tip advances. The measured strains are related to crack tip propagation, arrest, and re-initiation of the crack. A finite element model is used to calculate the energy release rate, mode mixity and to simulate crack propagation and arrest of the crack. Finally, the effectiveness of the crack arresting device is demonstrated on composite sandwich beams subjected to fatigue loading conditions.",
keywords = "Sandwich structures, Finite Element Analysis, Composites, Fracture Mechanics, Fatigue",
author = "G. Martakos and J.H. Andreasen and C. Berggreen and O.T. Thomsen",
year = "2019",
doi = "10.1177/1099636217695057",
language = "English",
volume = "2",
pages = "401–421",
journal = "Journal of Sandwich Structures & Materials",
issn = "1099-6362",
publisher = "SAGE Publications",
number = "2",

}

RIS

TY - JOUR

T1 - Experimental investigation of interfacial crack arrest in sandwich beams subjected to fatigue loading using a novel crack arresting device

AU - Martakos, G.

AU - Andreasen, J.H.

AU - Berggreen, C.

AU - Thomsen, O.T.

PY - 2019

Y1 - 2019

N2 - A recently proposed face-sheet–core interface crack arresting device is implemented in sandwich beams and tested using the Sandwich Tear Test configuration. Fatigue loading conditions are applied to propagate the crack and determine the effect of the crack stopper on the fatigue growth rate and arrest of the crack. Digital image correlation is used through the duration of the fatigue experiment to track the strain evolution as the crack tip advances. The measured strains are related to crack tip propagation, arrest, and re-initiation of the crack. A finite element model is used to calculate the energy release rate, mode mixity and to simulate crack propagation and arrest of the crack. Finally, the effectiveness of the crack arresting device is demonstrated on composite sandwich beams subjected to fatigue loading conditions.

AB - A recently proposed face-sheet–core interface crack arresting device is implemented in sandwich beams and tested using the Sandwich Tear Test configuration. Fatigue loading conditions are applied to propagate the crack and determine the effect of the crack stopper on the fatigue growth rate and arrest of the crack. Digital image correlation is used through the duration of the fatigue experiment to track the strain evolution as the crack tip advances. The measured strains are related to crack tip propagation, arrest, and re-initiation of the crack. A finite element model is used to calculate the energy release rate, mode mixity and to simulate crack propagation and arrest of the crack. Finally, the effectiveness of the crack arresting device is demonstrated on composite sandwich beams subjected to fatigue loading conditions.

KW - Sandwich structures

KW - Finite Element Analysis

KW - Composites

KW - Fracture Mechanics

KW - Fatigue

U2 - 10.1177/1099636217695057

DO - 10.1177/1099636217695057

M3 - Journal article

VL - 2

SP - 401

EP - 421

JO - Journal of Sandwich Structures & Materials

JF - Journal of Sandwich Structures & Materials

SN - 1099-6362

IS - 2

ER -