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Zinc Creep

All articles tagged with #zinc creep

science-and-technology1 year ago•2 min saved

Report Reveals Arecibo Telescope's Collapse Linked to Its Own Radar

A report by the National Academies of Sciences, Engineering, and Medicine has identified "zinc creep" as the cause of the Arecibo Observatory's radio telescope collapse in Puerto Rico. The zinc-filled sockets supporting the steel cables failed, leading to the platform's fall. The report suggests low-current electroplasticity may have accelerated the zinc's deformation. Recommendations include further study of the remaining components and better monitoring of aging facilities. The telescope, once a key research tool, will not be rebuilt, but a $5 million education center is planned for the site.

via NBC News|

#arecibo-observatory #national-science-foundation #radio-telescope

science1 year ago•3 min saved

Arecibo Observatory Collapse Linked to Cable and Socket Failures

The collapse of the Arecibo Observatory in 2020 was primarily caused by long-term zinc creep-induced failure of the telescope's cable spelter sockets, as detailed in a report by the National Science Foundation and the University of Central Florida. The structural failure began after Hurricane Maria in 2017, which subjected the telescope to unprecedented stress. Despite inspections and delayed repairs, the hidden degradation of cable mechanisms was not identified, leading to the eventual collapse. The site will be transformed into an educational center, Arecibo C3, to inspire future astronomers.

via Space.com|

#arecibo-observatory #hurricane-maria #radio-telescope

science-and-technology1 year ago•3 min saved

Investigating the Structural Failures Behind Arecibo's Collapse

The collapse of the Arecibo Observatory's telescope in 2020 is attributed to zinc creep in cable sockets, potentially accelerated by electroplasticity due to electromagnetic radiation, according to a National Academies report. The report suggests that the unique electromagnetic environment of the telescope may have hastened the failure, despite a safety factor above two. The NSF plans to replace the telescope with a science education center and is considering the report's recommendations for future projects.

via The Register|

#arecibo #electroplasticity #nsf

science-and-technology1 year ago•2 min saved

Unveiling the Causes Behind Arecibo Observatory's Collapse

A new report on the collapse of the Arecibo Telescope suggests that the failure of zinc spelter sockets, which anchored the support cables, was accelerated by a phenomenon called electroplasticity. This effect, potentially caused by electrical currents from the telescope's powerful transmitters, may have increased the plasticity of the zinc, leading to its deformation over time. The report also notes that the collapse might have been initiated by Hurricane Maria, which struck Puerto Rico 39 months prior. The findings highlight a unique failure mechanism possibly specific to Arecibo, warranting further investigation.

via Hackaday|

#arecibo-telescope #electroplasticity #hurricane-maria

science1 year ago•2 min saved

Unveiling the Overlooked Warnings Behind Arecibo's Collapse

The Arecibo Observatory's collapse in December 2020 was caused by decayed zinc in cable sockets and damage from Hurricane Maria, according to a report by the National Academies of Sciences. The report highlights "unprecedented and accelerated long-term zinc creep" as the root cause, with the failure sequence beginning 39 months prior. The observatory, a key site for radio astronomy, will be transformed into a STEM education center, though it will no longer collect radio data.

via Gizmodo|

#arecibo-observatory #hurricane-maria #radio-astronomy