Effects of overloads and underloads on biaxial fatigue crack propagation in Al 7075-T651 alloy

Siddhant Datta; Aditi Chattopadhyay; Nagaraja Iyyer; Nam Phan

Effects of overloads and underloads on biaxial fatigue crack propagation in Al 7075-T651 alloy

Siddhant Datta, Aditi Chattopadhyay, Nagaraja Iyyer, Nam Phan

Engineering, Ira A. Fulton Schools of (IAFSE)

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The fatigue crack growth behavior of Al 7075-T651 was investigated under in-plane biaxial loading conditions with overload and underload cycles introduced at different crack lengths. Quantitative fractography was performed on the fatigued specimens to correlate the microscale fracture features with the damage modes associated with the applied load spectrum. Overloads resulted in significant crack retardation and, in the case of higher overload amplitudes at longer crack lengths, even caused total crack arrest. The underloads led to increased crack growth; however this increase was not significant.

Original language	English (US)
Title of host publication	ICF 2017 - 14th International Conference on Fracture
Editors	Emmanuel E. Gdoutos
Publisher	International Conference on Fracture
Pages	718-719
Number of pages	2
ISBN (Electronic)	9780000000002
State	Published - 2017
Event	14th International Conference on Fracture, ICF 2017 - Rhodes, Greece Duration: Jun 18 2017 → Jun 20 2017

Publication series

Name	ICF 2017 - 14th International Conference on Fracture
Volume	1

Conference

Conference	14th International Conference on Fracture, ICF 2017
Country/Territory	Greece
City	Rhodes
Period	6/18/17 → 6/20/17

ASJC Scopus subject areas

Civil and Structural Engineering
Building and Construction

Cite this

Effects of overloads and underloads on biaxial fatigue crack propagation in Al 7075-T651 alloy. / Datta, Siddhant; Chattopadhyay, Aditi; Iyyer, Nagaraja et al.
ICF 2017 - 14th International Conference on Fracture. ed. / Emmanuel E. Gdoutos. International Conference on Fracture, 2017. p. 718-719 (ICF 2017 - 14th International Conference on Fracture; Vol. 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Datta, S, Chattopadhyay, A, Iyyer, N & Phan, N 2017, Effects of overloads and underloads on biaxial fatigue crack propagation in Al 7075-T651 alloy. in EE Gdoutos (ed.), ICF 2017 - 14th International Conference on Fracture. ICF 2017 - 14th International Conference on Fracture, vol. 1, International Conference on Fracture, pp. 718-719, 14th International Conference on Fracture, ICF 2017, Rhodes, Greece, 6/18/17.

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AB - The fatigue crack growth behavior of Al 7075-T651 was investigated under in-plane biaxial loading conditions with overload and underload cycles introduced at different crack lengths. Quantitative fractography was performed on the fatigued specimens to correlate the microscale fracture features with the damage modes associated with the applied load spectrum. Overloads resulted in significant crack retardation and, in the case of higher overload amplitudes at longer crack lengths, even caused total crack arrest. The underloads led to increased crack growth; however this increase was not significant.

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Effects of overloads and underloads on biaxial fatigue crack propagation in Al 7075-T651 alloy

Abstract

Publication series

Conference

ASJC Scopus subject areas

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