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Fatigue life estimation of bolt clamped and interference fitted-bolt clamped double shear lap joints using multiaxial fatigue criteria

Abazadeh, B ; Sharif University of Technology | 2013

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  1. Type of Document: Article
  2. DOI: 10.1016/j.matdes.2012.06.050
  3. Publisher: 2013
  4. Abstract:
  5. In this paper seven different multiaxial fatigue criteria based on stress, strain and energy were employed to estimate the fatigue lives of double shear lap joint specimens of aluminum 2024-T3 with bolt clamped and interference fitted-bolt clamped fastener holes. Detailed finite element (FE) simulations were conducted to obtain the stress and strain distributions in the joint to be used to as basic data in estimating the fatigue lives using multiaxial fatigue criteria. The estimated lives were compared with available experimental fatigue test results to investigate the capability of the criteria in predicting the fatigue lives. The results showed that the accuracy of life estimation for any criterion varies for different batches of specimens and applied load ranges. However, including the fatigue crack growth life can improve the fatigue estimation life and reduce the absolute error of multiaxial fatigue criteria
  6. Keywords:
  7. Bolt clamped joint ; Double shear lap joint ; Interference fitted-bolt clamped joint ; Absolute error ; Aluminum 2024-T3 ; Applied loads ; Double-shear ; Fastener holes ; Fatigue cracks ; Fatigue estimation ; Fatigue life estimation ; Finite element simulations ; Lap joint ; Life estimation ; Multiaxial fatigue criteria ; Pre-stress ; Stress and strain distribution ; Aluminum ; Estimation ; Fatigue of materials ; Fatigue testing ; Strain ; Bolts
  8. Source: Materials and Design ; Volume 43 , 2013 , Pages 327-336 ; 02641275 (ISSN)
  9. URL: http://www.sciencedirect.com/science/article/pii/S0261306912004372