Measurement and analysis of the nonlinear stiffness of cfrp components during vibration fatigue testing

Michele Peluzzo; Dario Di Maio; Andrea Cammarano; Paolo Castellini

doi:10.1007/978-3-030-47721-9_7

Measurement and analysis of the nonlinear stiffness of cfrp components during vibration fatigue testing

Michele Peluzzo
, Dario Di Maio^*
, Andrea Cammarano
, Paolo Castellini

^*Corresponding author for this work

Applied Mechanics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

Abstract

One of the typical fatigue failures of Carbon Fibre Reinforced Plastic (CFRP) components undergoing vibration loading is by delamination. Vibration fatigue tests are carried out at amplitude levels at which a sample undergoes to large deflections, and so high strains, to initiate the fatigue process. However, the higher the vibration amplitudes the higher the nonlinear vibration spectral contents will be. Furthermore, the occurrence of delamination generates additional nonlinear harmonics which are excitation cycles dependent, which means that the nonlinear stiffness changes with the component time to failure. This research work will attempt to create a multi-dimension stiffness map which is both function of the vibration amplitude and the number of cycles. The restoring surface map will be used to calculate the stiffness amplitude dependent as the fatigue process develops until the termination of the test. The ability to continuously monitor the nonlinear stiffness will allow to characterize the crack as it develops from a non-critical to a critical delamination size.

Original language	English
Title of host publication	Rotating Machinery, Optical Methods and Scanning LDV Methods, Volume 6 - Proceedings of the 38th IMAC, A Conference and Exposition on Structural Dynamics 2020
Editors	Dario Di Maio, Javad Baqersad
Publisher	Springer
Pages	61-71
Number of pages	11
ISBN (Electronic)	978-3-030-47721-9
ISBN (Print)	978-3-030-47720-2
DOIs	https://doi.org/10.1007/978-3-030-47721-9_7
Publication status	Published - 2020
Event	38th IMAC, A Conference and Exposition on Structural Dynamics, IMAC 2020 - Hyatt Regency, Houston, United States Duration: 10 Feb 2020 → 13 Feb 2020 Conference number: 38

Publication series

Name	Conference Proceedings of the Society for Experimental Mechanics Series
ISSN (Print)	2191-5644
ISSN (Electronic)	2191-5652

Conference

Conference	38th IMAC, A Conference and Exposition on Structural Dynamics, IMAC 2020
Abbreviated title	IMAC 2020
Country/Territory	United States
City	Houston
Period	10/02/20 → 13/02/20

Keywords

CFRP
Nonlinear
SLDV
Vibration fatigue

Access to Document

10.1007/978-3-030-47721-9_7

Cite this

Peluzzo, M., Di Maio, D., Cammarano, A., & Castellini, P. (2020). Measurement and analysis of the nonlinear stiffness of cfrp components during vibration fatigue testing. In D. Di Maio, & J. Baqersad (Eds.), Rotating Machinery, Optical Methods and Scanning LDV Methods, Volume 6 - Proceedings of the 38th IMAC, A Conference and Exposition on Structural Dynamics 2020 (pp. 61-71). (Conference Proceedings of the Society for Experimental Mechanics Series). Springer. https://doi.org/10.1007/978-3-030-47721-9_7

Peluzzo, Michele ; Di Maio, Dario ; Cammarano, Andrea et al. / Measurement and analysis of the nonlinear stiffness of cfrp components during vibration fatigue testing. Rotating Machinery, Optical Methods and Scanning LDV Methods, Volume 6 - Proceedings of the 38th IMAC, A Conference and Exposition on Structural Dynamics 2020. editor / Dario Di Maio ; Javad Baqersad. Springer, 2020. pp. 61-71 (Conference Proceedings of the Society for Experimental Mechanics Series).

@inproceedings{c0137fd3a78d4545b1a79e048a1fc6b3,

title = "Measurement and analysis of the nonlinear stiffness of cfrp components during vibration fatigue testing",

abstract = "One of the typical fatigue failures of Carbon Fibre Reinforced Plastic (CFRP) components undergoing vibration loading is by delamination. Vibration fatigue tests are carried out at amplitude levels at which a sample undergoes to large deflections, and so high strains, to initiate the fatigue process. However, the higher the vibration amplitudes the higher the nonlinear vibration spectral contents will be. Furthermore, the occurrence of delamination generates additional nonlinear harmonics which are excitation cycles dependent, which means that the nonlinear stiffness changes with the component time to failure. This research work will attempt to create a multi-dimension stiffness map which is both function of the vibration amplitude and the number of cycles. The restoring surface map will be used to calculate the stiffness amplitude dependent as the fatigue process develops until the termination of the test. The ability to continuously monitor the nonlinear stiffness will allow to characterize the crack as it develops from a non-critical to a critical delamination size.",

keywords = "CFRP, Nonlinear, SLDV, Vibration fatigue",

author = "Michele Peluzzo and \{Di Maio\}, Dario and Andrea Cammarano and Paolo Castellini",

year = "2020",

doi = "10.1007/978-3-030-47721-9\_7",

language = "English",

isbn = "978-3-030-47720-2",

series = "Conference Proceedings of the Society for Experimental Mechanics Series",

publisher = "Springer",

pages = "61--71",

editor = "\{Di Maio\}, Dario and Javad Baqersad",

booktitle = "Rotating Machinery, Optical Methods and Scanning LDV Methods, Volume 6 - Proceedings of the 38th IMAC, A Conference and Exposition on Structural Dynamics 2020",

address = "Germany",

note = "38th IMAC, A Conference and Exposition on Structural Dynamics, IMAC 2020, IMAC 2020 ; Conference date: 10-02-2020 Through 13-02-2020",

}

Peluzzo, M, Di Maio, D, Cammarano, A & Castellini, P 2020, Measurement and analysis of the nonlinear stiffness of cfrp components during vibration fatigue testing. in D Di Maio & J Baqersad (eds), Rotating Machinery, Optical Methods and Scanning LDV Methods, Volume 6 - Proceedings of the 38th IMAC, A Conference and Exposition on Structural Dynamics 2020. Conference Proceedings of the Society for Experimental Mechanics Series, Springer, pp. 61-71, 38th IMAC, A Conference and Exposition on Structural Dynamics, IMAC 2020, Houston, Texas, United States, 10/02/20. https://doi.org/10.1007/978-3-030-47721-9_7

Measurement and analysis of the nonlinear stiffness of cfrp components during vibration fatigue testing. / Peluzzo, Michele; Di Maio, Dario; Cammarano, Andrea et al.
Rotating Machinery, Optical Methods and Scanning LDV Methods, Volume 6 - Proceedings of the 38th IMAC, A Conference and Exposition on Structural Dynamics 2020. ed. / Dario Di Maio; Javad Baqersad. Springer, 2020. p. 61-71 (Conference Proceedings of the Society for Experimental Mechanics Series).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

TY - GEN

T1 - Measurement and analysis of the nonlinear stiffness of cfrp components during vibration fatigue testing

AU - Peluzzo, Michele

AU - Di Maio, Dario

AU - Cammarano, Andrea

AU - Castellini, Paolo

N1 - Conference code: 38

PY - 2020

Y1 - 2020

N2 - One of the typical fatigue failures of Carbon Fibre Reinforced Plastic (CFRP) components undergoing vibration loading is by delamination. Vibration fatigue tests are carried out at amplitude levels at which a sample undergoes to large deflections, and so high strains, to initiate the fatigue process. However, the higher the vibration amplitudes the higher the nonlinear vibration spectral contents will be. Furthermore, the occurrence of delamination generates additional nonlinear harmonics which are excitation cycles dependent, which means that the nonlinear stiffness changes with the component time to failure. This research work will attempt to create a multi-dimension stiffness map which is both function of the vibration amplitude and the number of cycles. The restoring surface map will be used to calculate the stiffness amplitude dependent as the fatigue process develops until the termination of the test. The ability to continuously monitor the nonlinear stiffness will allow to characterize the crack as it develops from a non-critical to a critical delamination size.

AB - One of the typical fatigue failures of Carbon Fibre Reinforced Plastic (CFRP) components undergoing vibration loading is by delamination. Vibration fatigue tests are carried out at amplitude levels at which a sample undergoes to large deflections, and so high strains, to initiate the fatigue process. However, the higher the vibration amplitudes the higher the nonlinear vibration spectral contents will be. Furthermore, the occurrence of delamination generates additional nonlinear harmonics which are excitation cycles dependent, which means that the nonlinear stiffness changes with the component time to failure. This research work will attempt to create a multi-dimension stiffness map which is both function of the vibration amplitude and the number of cycles. The restoring surface map will be used to calculate the stiffness amplitude dependent as the fatigue process develops until the termination of the test. The ability to continuously monitor the nonlinear stiffness will allow to characterize the crack as it develops from a non-critical to a critical delamination size.

KW - CFRP

KW - Nonlinear

KW - SLDV

KW - Vibration fatigue

UR - https://www.scopus.com/pages/publications/85092261939

U2 - 10.1007/978-3-030-47721-9_7

DO - 10.1007/978-3-030-47721-9_7

M3 - Conference contribution

AN - SCOPUS:85092261939

SN - 978-3-030-47720-2

T3 - Conference Proceedings of the Society for Experimental Mechanics Series

SP - 61

EP - 71

BT - Rotating Machinery, Optical Methods and Scanning LDV Methods, Volume 6 - Proceedings of the 38th IMAC, A Conference and Exposition on Structural Dynamics 2020

A2 - Di Maio, Dario

A2 - Baqersad, Javad

PB - Springer

T2 - 38th IMAC, A Conference and Exposition on Structural Dynamics, IMAC 2020

Y2 - 10 February 2020 through 13 February 2020

ER -

Peluzzo M, Di Maio D, Cammarano A, Castellini P. Measurement and analysis of the nonlinear stiffness of cfrp components during vibration fatigue testing. In Di Maio D, Baqersad J, editors, Rotating Machinery, Optical Methods and Scanning LDV Methods, Volume 6 - Proceedings of the 38th IMAC, A Conference and Exposition on Structural Dynamics 2020. Springer. 2020. p. 61-71. (Conference Proceedings of the Society for Experimental Mechanics Series). doi: 10.1007/978-3-030-47721-9_7

Measurement and analysis of the nonlinear stiffness of cfrp components during vibration fatigue testing

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