Nonlinear Cumulative Fatigue Damage Model

Hua Zou; Qiang Li; Shou Guang Sun

doi:10.4028/www.scientific.net/AMR.328-330.1440

Paper Titles

Different Thickness of Honeycomb Paperboard Vibration Frequency of Testing and Simulation
p.1421

Design of the Inversion Power-Supply Control System Based on DSP
p.1425

Design of New Metal Detector
p.1431

Improved Rotative Mid-Point Mensuration and Newton-Raphson Method in 2-D Flat Rolling Simulation
p.1436

Nonlinear Cumulative Fatigue Damage Model
p.1440

The Effect of Cerium Substitution on Electromagnetic Properties of NiZn Ferrites
p.1445

Study on Milling Testing of WC-Co Cemented Carbides Diamond Coated PCB Milling Cutters
p.1449

Plastic Micro Features Produced by Microwelding Machine
p.1453

Bond Interface Evaluation by Ultrasonic Testing and SEM for Radial Friction Welding Joints of Copper and Steel
p.1457

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 328-330Nonlinear Cumulative Fatigue Damage Model

Nonlinear Cumulative Fatigue Damage Model

Abstract:

Cumulative fatigue damage is an important consideration in determining the fatigue life of structures. A cumulative linear damage rule cannot provide a reasonable explanation for cumulative fatigue damage, but a damage curve method based on nonlinear cumulative fatigue damage model can give a reasonable explanation. In this paper, a specific mathematical model is put forward, which is based on the damage curve method. In the model, miner formula is modified properly and an exponent formula is give out to fit the damage accumulate. According to a two-step fatigue test of aluminum–alloy welded joint, the comparison between the calculated results and the testing results is less than 5%. It shows that the model is reasonable and accuracy.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Advanced Materials Research (Volumes 328-330)

Pages:

1440-1444

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.328-330.1440

Citation:

Cite this paper

Online since:

September 2011

Authors:

Hua Zou, Qiang Li, Shou Guang Sun

Keywords:

Cumulative Damage, Nonlinear Fatigue, Weld Fatigue

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] Shang Deguang, Yao Weixing. A study on nonlinear continuous damage cumulative model for uniaxial fatigue(In Chinese). Acta Aeronautica et Astronautica Sinica, 1998, 19(6): p.654–655.

Google Scholar

[2] Zou Hua, Li Wei. Probabilistic Fatigue Property of Aluminum Alloy Welded Joint for High-Speed Train, Journal Advanced Materials Research. Vol. 118–120(2010), p.527–531.

DOI: 10.4028/www.scientific.net/amr.118-120.527

Google Scholar

[3] Feng Sheng, Cheng Yanping. Unlinear fatigue damage cumulative theory(In Chinese). Journal of Harbin Institute of Technology. Vol. 35, 12(2003). p.1507–1509.

Google Scholar

[4] Feng Sheng, Cheng Yanping. Linear fatigue damage accumulation theory(In Chinese). Journal of Harbin Institute of Technology. Vol. 35, 5(2003). p.608–610.

Google Scholar

[5] Miner M A. Cumulative damage in fatigue [J] (In Chinese). J Appl Mech, 1945, 12(3): A159–164.

Google Scholar

[6] Z.T. Gao: Fatigue reliability(In Chinese). (BeiHang University Publications, Beijing 2000).

Google Scholar

[7] Yao Weixing: Analysis on Structure fatigue life(In Chinese). (Publishing House of National Defensive Industry, Beijing 2004).

Google Scholar