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    <title>Transport Research International Documentation (TRID)</title>
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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>Transport Research International Documentation (TRID)</title>
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      <title>STEELS FOR CRYOGENIC SERVICE</title>
      <link>https://trid.trb.org/View/54239</link>
      <description><![CDATA[The United States and the Soviet Union have undertaken a series of cooperative research efforts including an analysis of testing methods for evaluation of the properties of welded joints for Liquid Natural Gas (LNG) service.  Armco Steel Corporation conducted an evaluation of three steels using conventional qualification tests and a variety of fracture toughness tests.  Qualification testing included a comparison of the composition, strength and Charpy V-notch toughness of two ferritic nickel steels developed in the U.S. to those of an Fe-Cr-Mn austenitic stainless steel developed in the USSR.  Fracture toughness testing included a variety of static and dynamic testing methods to evaluate the notch toughness of base plate and weldments at cryogenic temperatures.]]></description>
      <pubDate>Thu, 04 Aug 1977 00:00:00 GMT</pubDate>
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      <title>FRACTURE TOUGHNESS OF MATERIALS FOR LNG SERVICE</title>
      <link>https://trid.trb.org/View/54240</link>
      <description><![CDATA[The static and dynamic fracture toughness of six ferrous and nonferrous materials for LNG service has been explored over the 76 K to 111 K range.  The ferrous materials study included both ferritic iron-based alloys containing nickel and an austenitic iron-based alloy containing manganese and chromium.  The nonferrous materials are aluminum magnesium alloys with varying magnesium content. Both base plates and weldments were included in the study.  Evaluation of the materials was undertaken using a variety of toughness tests including J-integral analysis.  The relative toughness of the materials varies depending on the toughness criterion selected.  However, the results show that acceptable levels of toughness in the LNG range may be achieved in all the alloys tested even though they have quite different composition and microstructure.]]></description>
      <pubDate>Thu, 04 Aug 1977 00:00:00 GMT</pubDate>
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      <title>INTERNAL INSULATION FOR LNG</title>
      <link>https://trid.trb.org/View/45813</link>
      <description><![CDATA[The paper presents the characteristics of polyphenylene oxide foam (PPO) as a candidate material for insulating both liquid hydrogen and LNG tanks.  Internal insulation systems appear to offer a number of advantages over conventional external systems, particularly for self- supporting, spherical tanks typical of the Moss-Rosenberg containment system.  It was concluded that an open-cell internal-gas-layer-insulation system for large, shipborne LNG tanks offers a number of advantages over insulation systems of conventional design, including improved thermal efficiency, reliability, safety, and manufacturing flexibility--along with reduced system costs and weight.]]></description>
      <pubDate>Tue, 13 Jul 1976 00:00:00 GMT</pubDate>
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      <title>HIGH-SPEED TRANSPORTATION LEVITATED BY SUPERCONDUCTING MAGNET</title>
      <link>https://trid.trb.org/View/39989</link>
      <description><![CDATA[Results of preliminary studies on superconducting magnet levitation in Japan are presented.  The review presented gives a summary of the experimental studies performed to date by the Japanese National Railways.  Additional experimental and theoretical work is being carried out simultaneoulsy in both industry and universities.  Plans have now been formulated to perform a field test of a levitated superconducting magnet vehicle at the speed of 500 km/hr on a 7-km track in 1975.  Studies for designing the test vehicle are presently under way and it is expected that this test will open the way to final development and design of the actual train which has to be completed by around 1977.]]></description>
      <pubDate>Wed, 13 Aug 1975 00:00:00 GMT</pubDate>
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