Fatigue evaluation of rib-to-deck welded joint using averaged strain energy density method

2018 ◽  
Vol 177 ◽  
pp. 682-694 ◽  
Author(s):  
Pengjun Luo ◽  
Qinghua Zhang ◽  
Yi Bao ◽  
Aixin Zhou
Keyword(s):  
Energy Density ◽  
Strain Energy Density ◽  
Strain Energy ◽  
Welded Joint ◽  
Density Method ◽  
Fatigue Evaluation

scholarly journals Volume free strain energy density method for applications to blunt V-notches

2020 ◽  
Vol 28 ◽  
pp. 734-742
Author(s):  
Pietro Foti ◽  
Seyed Mohammad Javad Razavi ◽  
Liviu Marsavina ◽  
Filippo Berto
Keyword(s):  
Energy Density ◽  
Strain Energy Density ◽  
Strain Energy ◽  
Density Method ◽  
Free Strain

scholarly journals On the application of the volume free strain energy density method to blunt V-notches under mixed mode condition

2021 ◽  
Vol 230 ◽  
pp. 111716
Author(s):  
Pietro Foti ◽  
Seyed Mohammad Javad Razavi ◽  
Majid Reza Ayatollahi ◽  
Liviu Marsavina ◽  
Filippo Berto
Keyword(s):  
Energy Density ◽  
Strain Energy Density ◽  
Mixed Mode ◽  
Strain Energy ◽  
Density Method ◽  
Free Strain

scholarly journals A Fatigue Evaluation Method for Radial Tire Based on Strain Energy Density Gradient

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Chen Liang ◽  
Zhi Gao ◽  
Shengkang Hong ◽  
Guolin Wang ◽  
Bentil Mawunya Kwaku Asafo-Duho ◽  
...  
Keyword(s):  
Fatigue Life ◽  
Energy Density ◽  
Density Gradient ◽  
Strain Energy Density ◽  
Strain Energy ◽  
Evaluation Method ◽  
Optimization Method ◽  
Structure Parameters ◽  
Truck Tires ◽  
Fatigue Evaluation

Vehicle tires are major components that are subjected to fatigue loading and their durability is of economic interest as it is directly related to the safety of property and the life of producers and consumers. Tire durability is also a major issue of energy conservation and environmental protection. This research aims to establish a reasonable fatigue evaluation and optimization method that effectively improves tire fatigue life. In the study, 11.00R20 and 12.00R20 all-steel radial truck tires were the research objects, and the guiding hypothesis for the research was that “the maximum area of ​​the strain energy density gradient modulus corresponds to the initial failure area, its direction corresponds to the crack propagation direction, and also the maximum strain energy value is inversely proportional to the tire fatigue life.” Through finite element analysis and durability test, the strain energy density gradient was determined as tire fatigue evaluation index, and the hypothesis of tire fatigue life prediction was validated. At the same time, the sensitivities of strain energy gradient to the tire structure parameters were calculated. Besides, the relationship between the structure parameters and the fatigue life was as well established in this paper. This study has formulated a tire fatigue evaluation method and proposed an effective optimization method for enhancing tire fatigue life. The results obtained are of high application value in offering guidance for tire structural design and useful for refining the fatigue failure theory of truck radial tires and improving durability.

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