TY - GEN
T1 - Peridynamic fatiue model for composites under constant and variable amplitude loads
AU - Madenci, Erdogan
AU - Barut, Atila
AU - Phan, Nam
N1 - Publisher Copyright:
© 2019 by DEStech Publications, Inc. and American Society for Composites. All rights reserved.
PY - 2019
Y1 - 2019
N2 - This study presents a fatigue model for constant and variable amplitude cyclic loading by combining kinetic theory of fracture (KTF) with peridynamics (PD). The KTF is applicable to constant and variable amplitude loading, and cumulative damage is inherent in the assumptions. Also, it is extremely suitable for implementation in the PD model of laminates. The standard stress versus cycles to failure data for unnotched laminates provides the determination of necessary parameters for the KTF. Using the test data generated by the Air Force Research Laboratory under the Tech Scout Project, the fidelity of this model is established by simulating the open-hole quasi-isotropic composite laminates under cyclic loads for stiffness reduction and failure progression. The PD predictions agree with the measured reduction in stiffness as a function of number of load cycles. Also, the progressive damage predictions capture the general characteristics of the experimentally observed damage patterns.
AB - This study presents a fatigue model for constant and variable amplitude cyclic loading by combining kinetic theory of fracture (KTF) with peridynamics (PD). The KTF is applicable to constant and variable amplitude loading, and cumulative damage is inherent in the assumptions. Also, it is extremely suitable for implementation in the PD model of laminates. The standard stress versus cycles to failure data for unnotched laminates provides the determination of necessary parameters for the KTF. Using the test data generated by the Air Force Research Laboratory under the Tech Scout Project, the fidelity of this model is established by simulating the open-hole quasi-isotropic composite laminates under cyclic loads for stiffness reduction and failure progression. The PD predictions agree with the measured reduction in stiffness as a function of number of load cycles. Also, the progressive damage predictions capture the general characteristics of the experimentally observed damage patterns.
UR - http://www.scopus.com/inward/record.url?scp=85084166568&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85084166568&partnerID=8YFLogxK
M3 - Conference contribution
T3 - Proceedings of the American Society for Composites - 34th Technical Conference, ASC 2019
BT - Proceedings of the American Society for Composites - 34th Technical Conference, ASC 2019
A2 - Kalaitzidou, Kyriaki
PB - DEStech Publications
T2 - 34th Technical Conference of the American Society for Composites, ASC 2019
Y2 - 23 September 2019 through 25 September 2019
ER -