TY - GEN
T1 - Site testing of dragline tubular structures
AU - Mashiri, F. R.
AU - Pang, D.
AU - Dayawansa, P.
AU - Zhao, X. L.
AU - Chitty, G.
AU - Jiao, H.
AU - Price, J.
N1 - Funding Information:
This paper is a brief report of work which is currently in progress. Supporters for the work have included the Australian Research Council, under Linkage Project No. LP0349125 , the manufacturers of draglines, Bucyrus Erie (BE) International and operators of draglines, BHP-Billiton Mitsubishi Alliance (“BMA”).The authors also wish to thank all the MTI staff for their hard work during site testing in particular Henry Bartosciewicz, Priyath Amaratunga, Garry Cassidy and Adrian Smith.
Funding Information:
This paper is a brief report of work which is currently in progress. Supporters for the work have included the Australian Research Council, under Linkage Project No. LP0349125, the manufacturers of draglines, Bucyrus Erie (BE) International and operators of draglines, BHP-Billiton Mitsubishi Alliance (“BMA”).The authors also wish to thank all the MTI staff for their hard work during site testing in particular Henry Bartosciewicz, Priyath Amaratunga, Garry Cassidy and Adrian Smith.
Publisher Copyright:
© 2005 EUCENTRE. All rights reserved.
PY - 2005
Y1 - 2005
N2 - Draglines with tubular booms are susceptible to fatigue cracking due to the large number of cycles they are subjected to during operation. Circular hollow section (CHS) tubes are used as both lacing and chord members. In this paper a study was carried out to better understand the stresses in a 4-lacing cluster during operation. Strain gauges were installed onto a dragline cluster to measure strains during operation. Static tests, dynamic (swing) tests and dynamic (digging) tests were carried out and strains obtained during the different tests were analysed. Both nominal stresses as well as hot spot stresses were determined from the strain measurements. Hot spot stresses at weld toes in the lacing members were found to be significantly larger than those at weld toes in the chord members. Nominal bending and axial stresses were also determined and a relationship between the two shown in the form of graphs. Bending stresses were found to form a relatively larger portion of the nominal stresses at the weld toes in the lacing members compared to chord members.
AB - Draglines with tubular booms are susceptible to fatigue cracking due to the large number of cycles they are subjected to during operation. Circular hollow section (CHS) tubes are used as both lacing and chord members. In this paper a study was carried out to better understand the stresses in a 4-lacing cluster during operation. Strain gauges were installed onto a dragline cluster to measure strains during operation. Static tests, dynamic (swing) tests and dynamic (digging) tests were carried out and strains obtained during the different tests were analysed. Both nominal stresses as well as hot spot stresses were determined from the strain measurements. Hot spot stresses at weld toes in the lacing members were found to be significantly larger than those at weld toes in the chord members. Nominal bending and axial stresses were also determined and a relationship between the two shown in the form of graphs. Bending stresses were found to form a relatively larger portion of the nominal stresses at the weld toes in the lacing members compared to chord members.
UR - http://www.scopus.com/inward/record.url?scp=72149111435&partnerID=8YFLogxK
M3 - Conference article published in proceeding or book
AN - SCOPUS:72149111435
T3 - International Conference on Advances in Experimental Structural Engineering
SP - 619
EP - 626
BT - AESE 2005 - Proceedings of the 1st International Conference on Advances in Experimental Stuctural Engineering
PB - EUCENTRE
T2 - 1st International Conference on Advances in Experimental Stuctural Engineering, AESE 2005
Y2 - 19 July 2005 through 21 July 2005
ER -