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    <copyright>Copyright © 2026. National Academy of Sciences. All rights reserved.</copyright>
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    <managingEditor>tris-trb@nas.edu (Bill McLeod)</managingEditor>
    <webMaster>tris-trb@nas.edu (Bill McLeod)</webMaster>
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      <title>Wooden Ship Hulls as Box Girders with Multiple Interlayer Slip</title>
      <link>https://trid.trb.org/View/813184</link>
      <description><![CDATA[The difficulties of modeling the vertical flexure of mechanically fastened wooden ship hulls as that of box beams, a mainstay of naval architecture when applied to iron and steel ships, can largely be overcome by factoring the incomplete composite action of timber components in terms of a reduced shear modulus, an increased shear lag, and a reduced sectional area in tension (owing to butt joints). Sample computations on a large wooden hull indicate that its deflection can be limited to about twice that of a completely composite hull if stiff fasteners (drift pins) are used at a much greater density than is typical of traditional construction. The lengths of timber pieces become severely limiting only if they are below 1/5th of hull length. The methodology has broad application to the preliminary design of many-piece timber box beam structures in general.]]></description>
      <pubDate>Wed, 18 Jul 2007 15:36:29 GMT</pubDate>
      <guid>https://trid.trb.org/View/813184</guid>
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      <title>A Survey on the Features of the Existing Motorized Wood Dhow and the Proposed Replacement for these Vessels</title>
      <link>https://trid.trb.org/View/757032</link>
      <description><![CDATA[There has been lengthy discussion at the national level for many years in connection with a replacement for the motorized dhow called “lanj” by another type of vessel.  In order to formulate an answer to the question of whether to preserve the said dhows with the existing conditions, or to replace them, a comprehensive feasibility study will need to be carried out in which all the determining parameters in the present dhows and their replacement are fully considered from all aspects.  For the realization of this replacement, this paper carried out a survey from economic, social, and technical aspects of dhow building in the Hormozgan region, and this paper is the summary of the preliminary feasibility study in regard to the potential and prospects in this maritime industry.  In the first section, the gathered statistical data for the existing motorized dhow, their types, maintenance, repair work shop, and the information in connection with the useful working life plus the finished costs of the wooden vessels and national regulations regarding insurance and bank facilities have been explained.  In addition to that the cultural, economical, and social conditions of lanj keepers and boatmen have also been review.  The technical specification of the lanj (powered wooden dhow) including dimensions, weight, form of the hull, deck, and engine room layouts plus hydrostatic and hyrodynamic features as well as shaft, propeller and all other equipment have been examined.  In the third section the features of the proposed substitute vessel are presented.]]></description>
      <pubDate>Thu, 23 Jun 2005 18:20:01 GMT</pubDate>
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      <title>A Short Overview of the Traditional Ship’s Type Constructed by the Wooden Shipbuilding “School” from Korcula, Croatia</title>
      <link>https://trid.trb.org/View/757031</link>
      <description><![CDATA[This paper deals with a short history of shipbuilding on the island of Korcula (the cradle of the Croatian shipbuilding industry); the main wooden ships types built in the past in the Korcual’s wooden shipbuilding school were presented.]]></description>
      <pubDate>Thu, 23 Jun 2005 18:03:03 GMT</pubDate>
      <guid>https://trid.trb.org/View/757031</guid>
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      <title>WOODEN SHIPBUILDING IN MARYLAND PRIOR TO THE MID-NINETEENTH CENTURY.</title>
      <link>https://trid.trb.org/View/606521</link>
      <description><![CDATA[No abstract provided.]]></description>
      <pubDate>Wed, 04 Feb 2004 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/606521</guid>
    </item>
    <item>
      <title>TAKING CARE OF WOODEN SHIPS</title>
      <link>https://trid.trb.org/View/83095</link>
      <description><![CDATA[Two papers and discussions are presented on the care of old and relatively new wooden ships. The first was taken with some editing from the proceedings of the Bath Marine Museum's Symposium on American Maritime History, held on May 6-8, 1977, and mainly concerns the maintenance of the U.S.S. Constitution. The second paper is a manual for the maintenance of the Hudson River Sloop Clearwater prepared in 1976 by Maynard Bray. Special care of wooden ships is a skill now limited to a few and efforts are being made to perpetuate these skills.]]></description>
      <pubDate>Thu, 11 Jul 2002 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/83095</guid>
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      <title>IMPROVED INSPECTION OF WOODEN VESSEL FASTENERS.</title>
      <link>https://trid.trb.org/View/579090</link>
      <description><![CDATA[No abstract provided.]]></description>
      <pubDate>Mon, 27 Jul 1998 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/579090</guid>
    </item>
    <item>
      <title>FRUITFUL VINE</title>
      <link>https://trid.trb.org/View/436920</link>
      <description><![CDATA[The hull of  the FRUITFUL VINE is of larch on oak construction with steel beams throughout, a transom stern and aluminium shelterdeck and wheelhouse. Principal particulars are: propulsion     Cummins ITA 19M length overall 22.07 m length regulation   20.03 m breadth moulded     6.68 m depth     3.44 m tonnage   73.64 m]]></description>
      <pubDate>Mon, 14 Aug 1995 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/436920</guid>
    </item>
    <item>
      <title>THE ANCIENT GREEK TRIREME - AN EARLY PRE-STRESSED SHELL</title>
      <link>https://trid.trb.org/View/439910</link>
      <description><![CDATA[The Greek trireme oared warship was the fastest of all past types of oared ships and its design was extreme, within the materials and techniques available at the time.  It was powered by the largest practicable number of single-manned oars, accommodated in a long slender and heavily-stressed timber hull of shell construction.  To keep hull bending stresses within acceptable limits, triremes were fitted with large tensioned ropes having the same purpose as steel tendons in pre-stressed concrete beams today.]]></description>
      <pubDate>Mon, 14 Aug 1995 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/439910</guid>
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    <item>
      <title>USING TODAY'S TECHNOLOGY TO HELP PRESERVE USS CONSTITUTION</title>
      <link>https://trid.trb.org/View/441237</link>
      <description><![CDATA[The USS CONSTITUTION was launched on 21 October 1797 and is the oldest commissioned ship afloat in the world today.  In order to retain as much of the ships remaining original material as possible, and at the same time preserve the hull form and structural integrity for the future, the U.S. Navy has conducted numerous inspections and engineering studies over the past decade.  While much of this work has involved visual inspections, test borings, mechanical testing, classical naval architecture calculations, and research into past shipbuilding practices, a commeasurate amount of effort has also been directed at using today's technology to maximum advantage.  This paper discusses: 1)  inspecting the ship's fasteners using ultrasonic testing, 2) inspecting the ship's wooden structure using three nondestructive test methods, 3) analysing ship deflections and general stress levels using finite element modelling on a computer, and 4) investigating the use of fiber reinforced composites to strengthen the ship.]]></description>
      <pubDate>Mon, 14 Aug 1995 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/441237</guid>
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    <item>
      <title>LONGITUDINAL STRENGTH OF LARGE-SCALED WOODEN SHIPS</title>
      <link>https://trid.trb.org/View/402189</link>
      <description><![CDATA[Wooden ships up to about 55m in length have been designed and built with hulls of double skin planking. This design calls for a layer of longitudinal planking to be crossed at an angle of 45 degrees by a layer of diagonal planking. Based on the successful operation of these ships, large-scaled wooden ships of about 70m in length are under consideration for construction with triple skin planking. This would consist of an outer layer of longitudinal planking and an inner skin of double layers of diagonal planking at angles of plus or minus 45 degrees, respectively, to the longitudinal planks. The experiments and theoretical investigations carried out to establish design formulas for the longitudinal bending and shear strength of wooden hulls with the triple skin planking are described.]]></description>
      <pubDate>Thu, 21 Jul 1994 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/402189</guid>
    </item>
    <item>
      <title>SHELL STRENGTH TESTS AND STRUCTURAL ANALYSIS OF LARGE WOODEN SHIPS</title>
      <link>https://trid.trb.org/View/407119</link>
      <description><![CDATA[Wood is a material for which strength and elasticity vary greatly in relation to grain direction. To build wooden structures such as ships, which suffer from severe simultaneous bending and shear stresses, combining plankings of several directions has been found effective in providing inplane stiffness. These patterns are called diagonal systems of planking and were the subject of intense research during the 1950s.  Diagonal planking systems made it possible to build much lighter and stronger wooden ships than those that had been built of only longitudinal plankings. A project carried out to investigate several problems that remained unresolved by the earlier research projects is described. In it, strength tests of shell structures were conducted by full-scale partial models to investigate static behavior; shell stiffness was investigated by a detailed FEM analysis; and breaking tests of the shell were conducted to investigate breaking strength. The failure mechanism is also discussed.]]></description>
      <pubDate>Thu, 21 Jul 1994 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/407119</guid>
    </item>
    <item>
      <title>MODERN WOODEN SHIPS. DESIGN AND CONSTRUCTION</title>
      <link>https://trid.trb.org/View/55464</link>
      <description><![CDATA[Today one finds very few yards engaged in wooden ship construction, primarily a few small yards devoted to pleasure craft and fishing vessels.  The skills and crafts required are found in isolated areas of the country.  And an even fewer number of larger yards are able to construct some of the specialized vessels such as the Navy's modern wooden minesweepers.  This paper is not intended as a comprehensive treatise on wooden ships.  It is meant to form a brief introduction to some of the terms and methods which are unique to wooden ship construction, and to which the designer and builder of steel and aluminum ships are not generally exposed.]]></description>
      <pubDate>Sat, 29 Oct 1977 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/55464</guid>
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