Reformulation in the frequency domain of a critical plane-based multiaxial fatigue criterion

The aim of this paper is to propose a modified multiaxial high-cycle fatigue criterion based on the critical plane approach. The proposed criterion contains three parameters, that is, shear stress amplitude, normal stress amplitude and mean normal stress. In order to take into account the mean shear stress effects, the critical plane is determined by the maximum shear stress. In the proposed multiaxial fatigue criterion, the influence of mean normal stress on fatigue damage is also considered. Based on the proposed criterion, the multiaxial fatigue life is predicted, and the results showed a good agreement with experimental data obtained from some literatures.

Download Full-text

General Procedure for Formulation of Multiaxial Fatigue Failure Criteria in Frequency Domain

MATEC Web of Conferences ◽

10.1051/matecconf/201930015007 ◽

2019 ◽

Vol 300 ◽

pp. 15007

Author(s):

Adam Niesłony ◽

Michał Böhm ◽

Robert Owsiński

Keyword(s):

Frequency Domain ◽

Fatigue Failure ◽

General Procedure ◽

Failure Criteria ◽

Multiaxial Fatigue ◽

Life Assessment ◽

Computational Techniques ◽

Critical Plane ◽

The Time Domain ◽

New Formulation

Fatigue life assessment under multiaxial loading conditions needs the use of multiaxial fatigue failure criteria. There are many formulations of such criteria which are usually divided in the groups of critical plane criteria and invariants based criteria. Other classifications refer to the parameter that determines fatigue, and these are stress, strain and energy criteria. Recently, the development of computational techniques for fatigue analysis in the frequency domain have been noticed. Analyzing the literature, it can be noted that these criteria are mainly created by the new formulation of them in the new domain. There is therefore a need to develop a general approach to the problem of formulating criteria in the frequency domain on the basis of existing proposals for the time domain. The paper presents the manner in which the values appearing in the criteria in the frequency domain can be determined. In particular, the process of formulating criteria of multiaxial random fatigue, using the critical plane approach proposed by Macha was presented. During the formation the linearity of such criteria was successfully used. Situations that indicate the correctness of transformations are also presented.

Download Full-text

Multiaxial Fatigue of 16MnR Steel

Volume 6: Materials and Fabrication ◽

10.1115/pvp2006-icpvt-11-93473 ◽

2006 ◽

Cited By ~ 1

Author(s):

Yanyao Jiang ◽

Tianwen Zhao ◽

Xiaogui Wang ◽

Zengliang Gao

Keyword(s):

Room Temperature ◽

Multiaxial Fatigue ◽

Pressure Vessel Steel ◽

Critical Plane ◽

Cracking Behavior ◽

Vessel Steel ◽

Axial Torsion ◽

Thin Walled ◽

Fatigue Criterion ◽

Tubular Specimens

Uniaxial, torsion, and axial-torsion fatigue experiments were conducted on a pressure vessel steel, 16MnR, at room temperature. The uniaxial experiments were conducted using solid cylindrical specimens. Axial-torsion experiments employed thin-walled tubular specimens subjected to proportional and nonproportional loading. A critical plane multiaxial fatigue criterion recently developed was found to correlate well with all the experiments conducted for the material. In addition, the fatigue criterion correctly predicted the cracking behavior of the material subjected to different loading paths.

Download Full-text

Energy Concepts and Critical Plane for Fatigue Assessment of Ti-6Al-4V Notched Specimens

Applied Sciences ◽

10.3390/app9102163 ◽

2019 ◽

Vol 9 (10) ◽

pp. 2163 ◽

Cited By ~ 2

Author(s):

Camilla Ronchei ◽

Andrea Carpinteri ◽

Sabrina Vantadori

Keyword(s):

Control Volume ◽

Fatigue Loading ◽

Multiaxial Fatigue ◽

Life Assessment ◽

Critical Plane ◽

Mode Iii ◽

Notched Specimens ◽

Fatigue Life Assessment ◽

Notch Tip ◽

Fatigue Criterion

In the present paper, the fatigue life assessment of notched structural components is performed by applying a critical plane-based multiaxial fatigue criterion. Such a criterion is formulated by using the control volume concept related to the strain energy density criterion. The verification point is assumed to be at a given distance from the notch tip. Such a distance is taken as a function of the control volume radii around the notch tip under both Mode I and Mode III loading. The accuracy of the present criterion is evaluated through experimental data available in the literature, concerning titanium alloy notched specimens under uniaxial and multiaxial fatigue loading.

Download Full-text

On the use of the Prismatic Hull method in a critical plane-based multiaxial fatigue criterion

International Journal of Fatigue ◽

10.1016/j.ijfatigue.2014.05.007 ◽

2014 ◽

Vol 68 ◽

pp. 159-167 ◽

Cited By ~ 39

Author(s):

Andrea Carpinteri ◽

Camilla Ronchei ◽

Andrea Spagnoli ◽

Sabrina Vantadori

Keyword(s):

Multiaxial Fatigue ◽

Critical Plane ◽

Fatigue Criterion

Download Full-text

Multiaxial Fatigue of 16MnR Steel

Journal of Pressure Vessel Technology ◽

10.1115/1.3008041 ◽

2008 ◽

Vol 131 (2) ◽

Cited By ~ 29

Author(s):

Zengliang Gao ◽

Tianwen Zhao ◽

Xiaogui Wang ◽

Yanyao Jiang

Keyword(s):

Pure Shear ◽

Ambient Air ◽

Shear Loading ◽

Multiaxial Fatigue ◽

Experimental Results ◽

Pressure Vessel Steel ◽

Critical Plane ◽

Cracking Behavior ◽

Vessel Steel ◽

Axial Torsion

Uniaxial, torsion, and axial-torsion fatigue experiments were conducted on a pressure vessel steel, 16MnR, in ambient air. The uniaxial experiments were conducted using solid cylindrical specimens. Axial-torsion experiments employed thin-walled tubular specimens subjected to proportional and nonproportional loading. The true fracture stress and strain were obtained by testing solid shafts under monotonic torsion. Experimental results reveal that the material under investigation does not display significant nonproportional hardening. The material was found to display shear cracking under pure shear loading but tensile cracking under tension-compression loading. Two critical plane multiaxial fatigue criteria, namely, the Fatemi–Socie criterion and the Jiang criterion, were evaluated based on the experimental results. The Fatemi–Socie criterion combines the maximum shear strain amplitude with a consideration of the normal stress on the critical plane. The Jiang criterion makes use of the plastic strain energy on a material plane as the major contributor to the fatigue damage. Both criteria were found to correlate well with the experiments in terms of fatigue life. The predicted cracking directions by the criteria were less satisfactory when comparing with the experimentally observed cracking behavior under different loading conditions.

Download Full-text