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Investigation of Automobile Fender Fatigue Cracking Based on the Miner Theory
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Xueyong Sui1, Aiguo Wang1, Kunmin Zhao1, 2
Automobile Technology & Material | 2024, (8) : 12 - 17
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Automobile Technology & Material | 2024, (8): 12-17
Investigation of Automobile Fender Fatigue Cracking Based on the Miner Theory
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Xueyong Sui1, Aiguo Wang1, Kunmin Zhao1, 2
Affiliations
  • 1 Hozon New Energy Automobile Co., Ltd., Jiaxing 318000
  • 2 Dalian University of Technology, Dalian 116024
Published: 2024-08-20 doi: 10.19710/J.cnki.1003-8817.20230354
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In order to solve the cracking problem of automobile wing during road test, this paper analyzes the residual stresses of the Fender produced during the stamping and assembly processes, and studies the influence of residual stress on fatigue failure. The process notch near the fender mounting point is optimized based on the Miner theory to reduce the stress concentration during the assembly process, which effectively improves the fatigue life of the Fender. The problem of fatigue cracking of the Fender is solved without the fatigue simulation based on the road spectrum. This paper provides ideas and theoretical basis for rapid analysis and solution of engineering problems.

Fender  /  Stamping forming  /  Stress concentration  /  Fatigue failure
Xueyong Sui, Aiguo Wang, Kunmin Zhao. Investigation of Automobile Fender Fatigue Cracking Based on the Miner Theory[J]. Automobile Technology & Material, 2024 , (8) : 12 -17 . DOI: 10.19710/J.cnki.1003-8817.20230354
Year 2024 volume Issue 8
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doi: 10.19710/J.cnki.1003-8817.20230354
  • Online Date:2025-12-19
  • Published:2024-08-20
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    1 Hozon New Energy Automobile Co., Ltd., Jiaxing 318000
    2 Dalian University of Technology, Dalian 116024
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表12种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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