Publication: Failure analysis of various fiberglass cross-arm designs under multi-axial loading
Date
2020
Authors
Mohamad D.
Beddu S.
Syamsir A.
Zahari N.M.
Razali M.F.
Abu Seman S.A.H.
Abas A.
Ng F.C.
Journal Title
Journal ISSN
Volume Title
Publisher
IOP Publishing Ltd
Abstract
This study investigated the type of failure modes of different cross-arm designs under multi-axial static loading. The failure modes were numerically predicted from real-scale finite-element models of cross-arm integrated with a Hashin damage subroutine. Three finite-element models of cross-arm were considered; a model with standard cross-arm design, a standard design engaged with braces, and a standard design engaged with sleeves. The failure analysis of the composite cross-arm was focused on the location and type of failure of the structure upon its application. This investigation revealed that under the applied load, the cross-arm with installed sleeves exhibited the lowest total deflection of 0.21 m. Every cross-arm design exhibited fiber failure due to the tension and compression mode, regardless of the support system installed. Additionally, the installation of sleeves and braces on the cross-arm structure successfully reduced the number of areas associated to failure. � Published under licence by IOP Publishing Ltd.