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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>INVESTIGATIONS OF STRESS CONCENTRATION IN THIN-WALLED ELEMENTS OF CHASSIS FRAMES</title>
      <link>https://trid.trb.org/View/210783</link>
      <description><![CDATA[Experimental analysis of the stress concentration effects in thin-walled channel beams is shown.  A mathematical model of the stress concentration factor is presented. Stress measurements were carried out by photoelastic method on channel beam models made of birefringent material, which enabled the places in which stress concentrations occurred to be identified and their maximum values to be estimated. The differences between calculated and measured values are presented in a tabulated form.  For the covering abstract of the conference see TRIS 391971.  (TRRL)]]></description>
      <pubDate>Mon, 29 Apr 1985 00:00:00 GMT</pubDate>
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      <title>FOLDED PLATES WITH DEFORMABLE END CROSS-SECTIONS</title>
      <link>https://trid.trb.org/View/196883</link>
      <description><![CDATA[A solution is presented for the analysis of prismatic folded plates with arbitrary boundary conditions at the ends.  The effect of deformability of end diaphragms is determined. The proposed method employing the series-type solution of folded plates is combined with classic thin-walled beam theory.  The method yields adequate results for both deformations and stresses, with a considerable saving in computer time over other theoretical analyses.  The use of the proposed technique is illustrated by a numerical example.  (Author/TRRL)]]></description>
      <pubDate>Wed, 29 Feb 1984 00:00:00 GMT</pubDate>
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      <title>COLLAPSE BEHAVIOUR OF THIN-WALLED BEAMS UNDER TORSIONAL MOMENTS</title>
      <link>https://trid.trb.org/View/186538</link>
      <description><![CDATA[The results are discussed of analytical methods designed to predict the crashworthiness of automobile structures. Collapse tests were carried out under torsional moments on square and rectangular section tubes (closed section), a hat section beam closed by spot welding (semi-closed section) and channel beams (open section).  Yield and maximum moments in the collapsing process are detailed in respect of cross-section geometry and material properties of the beams. In the case of channels, the effect of constraints against warning deformation of yielding moments was considered using thin-walled beam theory.  (Author/TRRL)]]></description>
      <pubDate>Mon, 31 Jan 1983 00:00:00 GMT</pubDate>
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      <title>BUCKLING OF THIN-WALLED CYLINDRICAL SHELLS IN SOIL</title>
      <link>https://trid.trb.org/View/48146</link>
      <description><![CDATA[The report covers work carried out in the Cambridge University Engineering Department under a Transport and Road Research Laboratory sponsored Research Contract to study the behaviour of buried pipes.  The work consists of a theoretical derivation of the buckling equations of a thin-walled cylindrical shell supported by an elastic medium.  A buckling pressure is predicted that is a function of the one-third power of shell stiffness parameter and a two-third power of soil-stiffness.  Consideration is given to how a proper elastic modulus for the soil should be chosen and the influence of that choice upon theoretical predictions.  Comparison with experimental evidence shows that the proposed theory predicts the trend of the data but is inaccurate in magnitude.  However, such errors can be explained by the lack of detailed information reported in the literature on the actual state of stress in the soil in relation to the test results.  Without this information the choice of parameters is uncertain and may to some extent account for the difference between theory and experimental results.  A design formulate is suggested which is obtained by empirically relating an oedometer test secant modulus to an apparent minimum tangent modulus for sand.  Future work must be directed toward a proper evaluation of stress state in soil surrounding a shell and the appropriate constitutive law for soil characterization.]]></description>
      <pubDate>Tue, 31 May 1977 00:00:00 GMT</pubDate>
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    <item>
      <title>TORSIONAL PROPERTIES OF COMPOSITE GIRDERS</title>
      <link>https://trid.trb.org/View/99767</link>
      <description><![CDATA[THE APPLICATION OF THIN WALLED BEAM THEORY HAS RESULTED IN A SERIES OF EQUATIONS WHICH PERMIT THE EVALUATION OF THE TORSIONAL PROPERTIES OF COMPOSITE GIRDERS. THE EVALUATION OF THE PROPERTIES OF TYPICAL SINGLE SPAN AND CONTINUOUS COMPOSITE GIRDERS, AND THEIR TRENDS, HAS RESULTED IN SEVERAL EMPIRICAL EQUATIONS RELATING THE WARPING STRESSES TO THE BENDING STRESSES. THEREFORE, THE TOTAL NORMAL STRESS CAN READILY BE COMPUTED. /AUTHOR/]]></description>
      <pubDate>Tue, 12 Jun 1973 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/99767</guid>
    </item>
    <item>
      <title>BEHAVIOR OF COMPOSITE BEAMS SUBJECTED TO TORSION</title>
      <link>https://trid.trb.org/View/102782</link>
      <description><![CDATA[THE DESIGN AND ANALYSIS OF CUR0ED HIGHWAY BRIDGES REQUIRE THE EVALUATION OF THE TORSIONAL PROPERTIES OF THE BRIDGE GIRDER MEMBERS. THE "THIN WALLED THEORY" CAN BE APPLIED WITH CERTAIN MODIFICATION. THESE MODIFICATIONS REQUIRE CONSIDERATION OF THE MATERIAL PROPERTY VARIATIONS AND THE COMPOSITE ACTION OF DECK SLAB AND GIRDERS. INCLUSION OF THESE MODIFICATIONS INTO THE GENERAL THEORY RESULTED IN A SERIES OF EQUATIONS WHICH WERE USED TO EVALUATE THE TORSIONAL PROPERTIES OF TYPICAL COMPOSITE HIGHWAY GIRDERS. THE EXPERIMENTAL TESTING OF FOUR COMPOSITE GIRDERS WAS CONDUCTED TO DETERMINE THE TORSIONAL RIGIDITY, WARPING PHENOMENA, AND FAILURE MODE. RESULTS SHOWED THAT: (1) THE CONCRETE SLAB PREDOMINATES IN TORSIONAL RIGIDITY DETERMINATION. (2) THE CONCRETE SLAB WARPING IS NEGLIGIBLE. (3) THE STEEL BEAM WARPING IS SIGNIFICANT. (4) THE COMPOSITE GIRDER FAILS BY CONCRETE CRACKING IN DIAGONAL TENSION. CORRELATION BETWEEN THEORY AND EXPERIMENTAL DATA INDICATED THAT THE APPLICATION ON THIN WALLED THEORY IS JUSTIFIED. /AUTHOR/]]></description>
      <pubDate>Sun, 08 Aug 1971 00:00:00 GMT</pubDate>
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