Comments on A case study on engineering failure analysis of link chain

The article by Tae-Gu Kim et al. conducted elastic FE modeling, which was inappropriate for fracture of elastic-plastic chain material (11.3% of elongation). FE analysis results and the findings in the fractographic analysis did not tally but contradicted each other. The article identified “incorrec...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autor principal:	George Y.H. Yu
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Chain fracture Failure analysis FEM simulation Fractographicanalysis Industrial accident Public aspects of medicine RA1-1270
Acceso en línea:	https://doaj.org/article/cb19b296fa0f454db182b7acb4ab1f8d
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:cb19b296fa0f454db182b7acb4ab1f8d
record_format	dspace
spelling	oai:doaj.org-article:cb19b296fa0f454db182b7acb4ab1f8d2021-11-30T04:15:32ZComments on A case study on engineering failure analysis of link chain2093-791110.1016/j.shaw.2021.05.001https://doaj.org/article/cb19b296fa0f454db182b7acb4ab1f8d2021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2093791121000378https://doaj.org/toc/2093-7911The article by Tae-Gu Kim et al. conducted elastic FE modeling, which was inappropriate for fracture of elastic-plastic chain material (11.3% of elongation). FE analysis results and the findings in the fractographic analysis did not tally but contradicted each other. The article identified “incorrect installation”/ bending forces as the root cause while FE results of the chain under bending forces showed very low stresses at fracture locations but the highest stress in the middle of shank of the chain. The article's “step-like topographies indicating the fracture due to bending moment rather than uniaxial tension” lacked scientific support. The load value carried by each chain section under bending/incorrect installation was only half of that under tension, thus the article using same load value in FE simulation comparison for bending and tension was incorrect. The real cause of the chain fracture was likely improper checking the lifted load or/and using the wrong chain with much lower safety working load.George Y.H. YuElsevierarticleChain fractureFailure analysisFEM simulationFractographicanalysisIndustrial accidentPublic aspects of medicineRA1-1270ENSafety and Health at Work, Vol 12, Iss 4, Pp 544-545 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Chain fracture Failure analysis FEM simulation Fractographicanalysis Industrial accident Public aspects of medicine RA1-1270
spellingShingle	Chain fracture Failure analysis FEM simulation Fractographicanalysis Industrial accident Public aspects of medicine RA1-1270 George Y.H. Yu Comments on A case study on engineering failure analysis of link chain
description	The article by Tae-Gu Kim et al. conducted elastic FE modeling, which was inappropriate for fracture of elastic-plastic chain material (11.3% of elongation). FE analysis results and the findings in the fractographic analysis did not tally but contradicted each other. The article identified “incorrect installation”/ bending forces as the root cause while FE results of the chain under bending forces showed very low stresses at fracture locations but the highest stress in the middle of shank of the chain. The article's “step-like topographies indicating the fracture due to bending moment rather than uniaxial tension” lacked scientific support. The load value carried by each chain section under bending/incorrect installation was only half of that under tension, thus the article using same load value in FE simulation comparison for bending and tension was incorrect. The real cause of the chain fracture was likely improper checking the lifted load or/and using the wrong chain with much lower safety working load.
format	article
author	George Y.H. Yu
author_facet	George Y.H. Yu
author_sort	George Y.H. Yu
title	Comments on A case study on engineering failure analysis of link chain
title_short	Comments on A case study on engineering failure analysis of link chain
title_full	Comments on A case study on engineering failure analysis of link chain
title_fullStr	Comments on A case study on engineering failure analysis of link chain
title_full_unstemmed	Comments on A case study on engineering failure analysis of link chain
title_sort	comments on a case study on engineering failure analysis of link chain
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/cb19b296fa0f454db182b7acb4ab1f8d
work_keys_str_mv	AT georgeyhyu commentsonacasestudyonengineeringfailureanalysisoflinkchain
_version_	1718406830981382144

Comments on A case study on engineering failure analysis of link chain

Ejemplares similares