Unlocking the Serçe Limanı Forelock Bolt: An Archaeological–Mechanical Analysis of the Ubiquitous Maritime Fastener of Ancient Watercraft

Nathan Helfman, Deborah Cvikel

Research output: Contribution to journalArticlepeer-review

Abstract

The forelock bolt was a ubiquitous joining technology employed by ancient shipwrights. Its systematic positioning in the Serçe Limanı ship (11th century CE) was the primary joining technology of its keelson-frames-keel assembly. This fact lends itself well to analyzing its engineering-technical properties, which were identical to those of modern bolts. The preload required to apply secure clamping force in the Serçe Limanı keelson-frames-keel backbone assemblage, was analyzed applying the physics of bolt technology. A structural Finite Element Analysis (FEA) was conducted on the bolt and, under laboratory conditions, was validated on a physical model. It was thus demonstrated that the bolt achieved the conditions needed to securely fasten the Serçe Limanı keel assemblage while serving as a means of efficient structural maintenance.

Original languageEnglish
JournalInternational Journal of Nautical Archaeology
DOIs
StateAccepted/In press - 2023

Bibliographical note

Publisher Copyright:
© 2023 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.

Keywords

  • Forelock bolt
  • Keelson
  • Preload
  • Serçe Limanı
  • Ship construction

ASJC Scopus subject areas

  • Oceanography
  • History
  • Archaeology
  • Paleontology

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