Order Publications

Reference: ISH2015_104

Type:
ISH Collection
Title:

The importance of the fibre-matrix interface on the mechanical stability of composite insulators

 

Abstracts

An important aspect of the design of transmission line insulators is the mechanic answer to different loadings including highly dynamic cases like load transfer or ice drop. In the latter cases an assessment using force balances as per IEC 61109 is only limited in predicting the failure behaviour. The main reason is that this design method is not able to take into account the detailed damage state and accumulation of a given Glass Fibre Reinforced Plastic (GFRP) rod and especially the sharp stress increase at crack tips. Within this contribution typical examples of damage accumulation as well as mechanical fatigue are presented. Based on this description the basics of fracture mechanics are shortly explained. From its foundations in 1919 this method has been established as the preferred design methodology to assess brittle materials. In addition the method can be extended to enable a material's based lifetime assessment for dynamic (vibration) and static fatigue (corrosion) for both monolithic ceramics and fibre reinforced brittle materials.
 

File Size: 524,2 KB

Year: 2015

 
 
 
Download
Member
FREE free
Non member
FREE free
 

Your AccountYour Account

Password forgotten

Members

may download free of charge all publications including most recent ones


Non Members

may download free of charge publications over three years old and purchase all publications

ContactContact

For any questions in connection with the on-line library, contact:


Publications and Editions Manager

publications@cigre.org