Stress effects on the reduced ore conveyor tube-bridle joint welds
Keywords:
worm conveyor, welded joint, bridle, residual stress, simulationAbstract
The objective of this work was to calculate and simulate the stress in order to determine if it is the cause of failures in the tube-bridle joint welds on the straight sections of the laterite ore conveyor at a metallurgical plant. The simulation was conducted through the finite element method. The metallographic analysis on the welded joint indicated the presence of ferrite-perlite and incomplete Widmanstaetten structures. This is due to the difference between the carbon content of the bridle and that of the tube. The results evidence that the stress is not a cause of failure: according to the Von Misses criterion, the joint is resistant to the load conditions as the maximum stresses resulted from the bead welds are distributed all along the conveyor without exceeding the extreme values.Downloads
References
ANEIROS, J. M. 1983: Problemas de diseño de elementos de máquinas. Pueblo y Educación. Ciudad de La Habana.
CISILINO, A.; CHAPETTI, M. & OTEGUI, J. 2002: Minimum thickness for circumferential sleeve repair fillet welds in corroded gas pipelines. International Journal of Pressure Vessel and Piping 79(7): 67-76.
DAZ, G.; KITTL, P. & ROSALES, M. 2003: Probabilistic design and quality control in probabilistic strength of materials. International journal of solids and structures 40(12): 5 001-5 015.
ELGUETA, M. & KILT, P. 2007: Probabilistic control of materials by a simulation method. Materials & Design 28(6): 1 919-1 922.
FAZZINI, P. G. & OTEGUI, J. L. 2006: Influence of old rectangular repair patches on the burst pressure of a gas pipeline. International Journal of Pressure Vessels and Piping 83(15): 27-34.
GARCÍA, Y.; BURGOS, J.; GIL, F. & RIVALTA, J. 2006: Obtención de tensiones residuales a lo largo de un cordón de soldadura mediante métodos analíticos y experimentales. Soldagem & Insp 11(2): 4-9.
JOHN, W.; PRICE, H.; ANNA, R.; ZIARA-PARADOWSKA, SURAJ, J.; FINLAYSON, T. 2008: Comparison of experimental and theorical residual stresses in welds: the issue of gauge volume. International Journal of Mechanical Science 50(11): 513-521.
PÁSTOR, M. 2002: Introducción a la Metalurgia de la Soldadura. Editorial ESPOCH, Ecuador, p. 56.
PRASAD, K. & DWIVEDI, D. 2008: Some investigation on microstructure and mechanical properties of submerged arc welded HSLA steel joints. International Journal of advance manufacturing technology 36(6): 475-483.
RODRÍGUEZ, I.; HERNALDO, T.; GUARDADO, R. & NGENDANZI, V. 2007: Modelación por Elementos Finitos de la ruptura del tubo en el transportador de mineral laterítico reducido. Minería y Geología 23(4): 1-13.
SEOK, J. 2008: Characterization of bainitic microstructures in low carbon HSLA steels. International Journal of Modern Physics B 22(31): 5 965-5 970.
SHIGLEY, J. 1985: Elementos de Máquinas. Pueblo y Educación, La Habana, 1 100 p.
Published
How to Cite
Issue
Section
- Authors retain copyright and guaranteeing the right magazine to be the first publication of the work as licensed under a Creative Commons Attribution-NonCommercial that allows others to share the work with an acknowledgment of the work's authorship and initial publication in this journal.
- Authors may establish separate supplemental agreements for the exclusive distribution version of the work published in the journal (eg, place it in an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.
- Authors are allowed and recommended to disseminate their work through the Internet (e.g., in institutional telematic archives or on their websites) before and during the submission process, which can produce interesting exchanges and increase citations of the published work. (See The effect of open access)
