Technical Paper Archive


This site contains all papers presented at Rubber Division, ACS Technical Meetings from 2000-2018. Meetings prior to 2000 are incomplete and papers are added as they are digitized.


For older papers not listed here, please send your request, including Meeting Year, Title, Author, and Paper # to: cbrady@rubber.org


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FATIGUE CRACK INITIATION IN SILICA FILLED STYRENE BUTADIENE RUBBER

D11 padmanathan fatigue crack initiation in filled rubber composites

Event: 196th Technical Meeting - Fall 2019
Location: Cleveland, OH
Date: October 08, 2019
Author: H.R. Padmanathan
Paper Number: D11

Price: $20.00

  • The aim of this study was to investigate the fatigue crack initiation in silica-filled solution styrene butadiene rubber. Interrupted fatigue tests were performed on adapted hourglass shaped AE2 samples, while the material microstructure was examined for different fatigue steps using a scanning electron microscope (SEM) and a micro-computed x-ray tomograph (╬╝CT). The main findings indicate that fatiguing induced cracks by debonding between silica agglomerates and the rubber matrix as well as by internal fracture of silica agglomerates. Micro cracks were quantified by image analysis as a function of the number of fatigue cycles. It was demonstrated that the cracks grew with an increasing number of fatigue cycles. It was thus concluded that initiation of these cracks as well as their growth leads to a premature end of life of the material. These findings may help the design and development of rubber compounds with improved fatigue resistance.

    Papers from 196th Technical Meeting - Fall 2019

    Items from 196th Technical Meeting - Fall 2019