Fatigue Life Prediction Method for Natural Rubber Material Based on Extreme Learning Machine South China University of Technology

Format:

Book

Conference/Event

Author/Creator:

Lai, Wei, author.

Contributor:

Shangguan, Wen-Bin

Wang, Yonggang

Zhen, Ran

Conference Name:

WCX SAE World Congress Experience (2022-04-05 : Detroit & Online, Michigan, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2022

Summary:

Uniaxial fatigue tests of rubber dumbbell specimens under different mean and amplitude of strain are carried out. An Extreme Learning Machine (ELM) model optimized by Dragonfly Algorithm (DA) is proposed to predict the fatigue life of rubber based on measured rubber fatigue life data. Mean and amplitude of strain and measured rubber fatigue life are taken as input variables and output variables respectively in DA-ELM model. For comparison, genetic algorithm (GA) and particle swarm optimization (PSO) are used to optimize ELM parameters, and GA-ELM and PSO-ELM models are established. The comparison results show that DA-ELM model performs better in predicting the fatigue life of rubber with least dispersion. The coefficients of determination for the training set and test set are 99.47% and 99.12%, respectively. In addition, a life prediction model equivalent strain amplitude as damage parameter is introduced to further highlight the superiority of DA-ELM model. The life distribution diagrams shows that DA-ELM model prediction results are within 2 times dispersion line, and equivalent strain amplitude life model prediction results are mostly within 4 times dispersion line. The former has higher prediction accuracy

Notes:

Vendor supplied data

Publisher Number:

2022-01-0258

Access Restriction:

Restricted for use by site license