Creep test rig for cantilever beam: Fundamentals, prospects and present views

M. R. M. Asyraf; Mohamad Ridzwan Ishak; S. M. Sapuan; N. Yidris; R. M. Shahroze; A. N. Johari; M. Rafidah; R. A. Ilyas

doi:10.15282/jmes.14.2.2020.26.0538

Authors

M. R. M. Asyraf Department of Aerospace Engineering, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia. Phone: +60397694396; Fax: +60397697125
Mohamad Ridzwan Ishak Department of Aerospace Engineering, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia. Phone: +60397694396; Fax: +60397697125
S. M. Sapuan Advanced Engineering Materials and Composites Research Centre (AEMC), Department of Mechanical and Manufacturing Engineering, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
N. Yidris Department of Aerospace Engineering, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia. Phone: +60397694396; Fax: +60397697125
R. M. Shahroze Department of Aerospace Engineering, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia. Phone: +60397694396; Fax: +60397697125
A. N. Johari Department of Aerospace Engineering, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia. Phone: +60397694396; Fax: +60397697125
M. Rafidah Department of Civil Engineering, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
R. A. Ilyas Advanced Engineering Materials and Composites Research Centre (AEMC), Department of Mechanical and Manufacturing Engineering, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia

DOI:

https://doi.org/10.15282/jmes.14.2.2020.26.0538

Keywords:

Creep, structural joining mechanisms, material characterization, anisotropic material, cantilever beam, long term durability, test rig

Abstract

Cross arms in transmission tower are made up of Chengal wood, which degrade and collapse after a long period of service. This is due to creep deformation, and the rate of degradation is expedited due to exposure to extreme tropical climate. Hence, it is crucial to comprehend the early creep stage, which leads to structural failure. Apart from that, there are several research and industrial application gaps of these cross arms. For instance, creep life analysis of actual cross arms is still unexplored. In this study, the state-of-the-art is related to creep experiments and creep test rig designs, espacially on the creep test of a cantilever beam setup. The experimental methodologies implemented two vital approaches, conventional and accelerated techniques. The specific creep experiments on cantilever beam structure are emphasized and suggested in the manuscript as the building blocks for future design of cantilever creep test rig. This helps to guide future development design of cantilever beam creep test rig by fulfilling the specific criteria related to creep fundamentals, numerical modelling analysis, test operation for data evaluation, and development process. At the end, the challenges and improvements on the criteria existing design of test rigs are elaborated.

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EN ISO 14125-1998, “Fibre-reinforced plastic composites — Determination of flexural properties,” 1988