Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Progressive Fatigue Failure Analysis of a Filament Wound Ring Specimen with a Hole

Version 1 : Received: 16 August 2021 / Approved: 17 August 2021 / Online: 17 August 2021 (08:39:12 CEST)

A peer-reviewed article of this Preprint also exists.

Hugaas, E.; Vedvik, N.P.; Echtermeyer, A.T. Progressive Fatigue Failure Analysis of a Filament Wound Ring Specimen with a Hole. J. Compos. Sci. 2021, 5, 251. Hugaas, E.; Vedvik, N.P.; Echtermeyer, A.T. Progressive Fatigue Failure Analysis of a Filament Wound Ring Specimen with a Hole. J. Compos. Sci. 2021, 5, 251.

Journal reference: J. Compos. Sci. 2021, 5, 251
DOI: 10.3390/jcs5090251

Abstract

A progressive FEA fatigue degradation model for composites was developed and implemented using a UMAT user material subroutine in Abaqus. Numerical results were compared to experimental strain field data from high frequency Digital Image Correlation (DIC) of split disk fatigue testing of pressure vessel cut outs with holes. The model correctly predicted the onset and evolution of damage in the matrix as well as the onset of fiber failure. The model use progressive failure analysis based on the maximum strain failure criterion, the cycle jump method and Miner sum damage accumulation rule. A parameter study on matrix properties was needed to capture the scatter in strain fields observed experimentally by DIC. S-N curve for the matrix material had to be lowered by 0% to 60% to capture the experimental scatter. The onset of local fiber failure had to be described by local S-N curves measured by DIC having 2.5 times greater strain than that of S-N curves found from standard coupon testing.

Keywords

Finte element analysis; Material models; Fatigue; Filament winding; Digital image correlation

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