Study on the Low Cycle Fatigue Damage of Nodular Cast Iron Based on Elastic Modulus

2006 ◽  
pp. 851-854
Author(s):  
Jin Hai Liu ◽  
Xiao Yan Hao ◽  
Guo Lu Li ◽  
Xue Bo Zhao ◽  
Gen Sheng Liu
Keyword(s):  
Cast Iron ◽  
Elastic Modulus ◽  
Fatigue Damage ◽  
Low Cycle Fatigue ◽  
Nodular Cast Iron ◽  
Cycle Fatigue ◽  
Iron Based

Study on the Low Cycle Fatigue Damage of Nodular Cast Iron Based on Elastic Modulus

2006 ◽  
Vol 324-325 ◽  
pp. 851-854
Author(s):  
Jin Hai Liu ◽  
Xiao Yan Hao ◽  
Guo Lu Li ◽  
Xue Bo Zhao ◽  
Gen Sheng Liu
Keyword(s):  
Cast Iron ◽  
Elastic Modulus ◽  
Fatigue Damage ◽  
Low Cycle Fatigue ◽  
Nodular Cast Iron ◽  
Damage Variable ◽  
Cycle Fatigue ◽  
Sensitive Parameter ◽  
Nodular Iron ◽  
Iron Based

The influence of fatigue ratio on the low cycle fatigue damage of nodular cast iron was investigated by measuring the elastic modulus. The results indicated that the elastic modulus of nodular cast iron is a sensitive parameter to the fatigue damage at low cycle. The fatigue damage variable of nodular cast iron increases with cycle ratio. At the beginning and end period of cycling, the damage of nodular iron increases sharply, and in the range of 0.2- 0.8 cycle ratio, the fatigue damage grows gradually.

Low cycle fatigue of nodular cast iron used for railway brake discs

2011 ◽  
Vol 18 (6) ◽  
pp. 1424-1434 ◽  
Author(s):  
Blaž Šamec ◽  
Iztok Potrč ◽  
Matjaž Šraml
Keyword(s):  
Cast Iron ◽  
Low Cycle Fatigue ◽  
Nodular Cast Iron ◽  
Cycle Fatigue ◽  
Brake Discs

A Multi-Level Low Cycle Fatigue Damage Model for Forging Die Material

2006 ◽  
Vol 514-516 ◽  
pp. 804-809
Author(s):  
S. Gao ◽  
Ewald Werner
Keyword(s):  
Fatigue Life ◽  
Fatigue Damage ◽  
Low Cycle Fatigue ◽  
Damage Model ◽  
Fatigue Loading ◽  
Cycle Fatigue ◽  
Die Material ◽  
Multi Level ◽  
Loading Sequence ◽  
Forging Die

The forging die material, a high strength steel designated W513 is considered in this paper. A fatigue damage model, based on thermodynamics and continuum damage mechanics, is constructed in which both the previous damage and the loading sequence are considered. The unknown material parameters in the model are identified from low cycle fatigue tests. Damage evolution under multi-level fatigue loading is investigated. The results show that the fatigue life is closely related to the loading sequence. The fatigue life of the materials with low fatigue loading first followed by high fatigue loading is longer than that for the reversed loading sequence.

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