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2020 | OriginalPaper | Chapter

Crack Growth and Plastic, Fracture Process and Damage Zones Behavior Under Mixed Mode Loading

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Abstract

Fatigue crack paths for inclined cracks are studied through experiments and computations under different mixed-mode loading. The experimental study of fatigue crack growth in the aluminum and titanium alloys and two types of the steels is performed on compact tension shear specimens. The cyclic fracture process and damage zone concepts are introduced and used for numerical analysis of the crack tip fields. The elastic K1, K2 and plastic KP stress intensity factors are calculated by finite element method to characterize the fracture resistance along the curvilinear trajectories in compact tension shear specimens. The influence of mode-mixity and elastic-plastic material properties on the behavior of three crack tip regions as a function of cyclic loading is demonstrated.

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Literature
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go back to reference Shlyannikov, V.N.: Creep–fatigue crack growth rate prediction based on fracture damage zone models. Eng. Fract. Mech. 214, 449–463 (2019)CrossRef Shlyannikov, V.N.: Creep–fatigue crack growth rate prediction based on fracture damage zone models. Eng. Fract. Mech. 214, 449–463 (2019)CrossRef
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go back to reference Citarella, R., Cricri, G.: Comparison of DBEM and FEM crack path predictions in a notched shaft under torsion. Eng. Fract. Mech. 77, 1730–1749 (2010)CrossRef Citarella, R., Cricri, G.: Comparison of DBEM and FEM crack path predictions in a notched shaft under torsion. Eng. Fract. Mech. 77, 1730–1749 (2010)CrossRef
3.
go back to reference Shlyannikov, V.N.: Mixed-mode static and fatigue crack growth in central notched and compact tension shear specimens. ASTM STP 1359, 279–294 (1999) Shlyannikov, V.N.: Mixed-mode static and fatigue crack growth in central notched and compact tension shear specimens. ASTM STP 1359, 279–294 (1999)
4.
go back to reference Duyi, Y., Zhenlin, W.: A new approach to low-cycle fatigue damage based on exhaustion of static toughness and dissipation of cyclic plastic strain energy during fatigue. Int. J. Fatigue 23, 679–687 (2001)CrossRef Duyi, Y., Zhenlin, W.: A new approach to low-cycle fatigue damage based on exhaustion of static toughness and dissipation of cyclic plastic strain energy during fatigue. Int. J. Fatigue 23, 679–687 (2001)CrossRef
Metadata
Title
Crack Growth and Plastic, Fracture Process and Damage Zones Behavior Under Mixed Mode Loading
Authors
Valery Shlyannikov
Daria Fedotova
Copyright Year
2020
DOI
https://doi.org/10.1007/978-3-030-47883-4_21

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