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    <title>Transport Research International Documentation (TRID)</title>
    <link>https://trid.trb.org/</link>
    <atom:link href="https://trid.trb.org/Record/RSS?s=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" rel="self" type="application/rss+xml" />
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    <copyright>Copyright © 2026. National Academy of Sciences. All rights reserved.</copyright>
    <docs>http://blogs.law.harvard.edu/tech/rss</docs>
    <managingEditor>tris-trb@nas.edu (Bill McLeod)</managingEditor>
    <webMaster>tris-trb@nas.edu (Bill McLeod)</webMaster>
    <image>
      <title>Transport Research International Documentation (TRID)</title>
      <url>https://trid.trb.org/Images/PageHeader-wTitle.jpg</url>
      <link>https://trid.trb.org/</link>
    </image>
    <item>
      <title>VARIABLE STRESS CYCLE FATIGUE OF LARGE BUTT-WELDED SPECIMENS</title>
      <link>https://trid.trb.org/View/98119</link>
      <description><![CDATA[AN EXPERIMENTAL INVESTIGATION WAS CONDUCTED TO SHOW ON LARGER-THAN-LABORATORY SIZE SPECIMENS WHETHER OR NOT IT IS POSSIBLE TO INFLUENCE THE ENDURANCE LIMIT OF A WELDED STRUCTURAL JOINT BY IMPOSING VARIOUS STRESS CYCLES PRIOR TO OR DURING ZERO-TENSION FATIGUE TESTING. THESE INCLUDED PRESTRESSING AND COAXING AS WELL AS IMPOSING TO SPECIMENS A GIVEN VARIABLE STRESS CYCLIC FATIGUE PROGRAM. SUCH VARIABLES ARE THOUGHT BY SOME TO REDUCE STRESS CONCENTRATIONS AND RESIDUAL STRESSES DUE TO WELDING WHILE OTHERS BELIEVE THEM TO BE DETRIMENTAL. FATIGUE TESTS ON THREE TYPES OF A373 STEEL SPECIMENS WERE CONDUCTED TO ESTABLISH S-N CURVES UNDER ZERO-TENSION CYCLIC STRESS AMPLITUDES BASED ON RESULTS OF RUPTURES IN 100,000 AND TWO MILLION CYCLES. THE THREE TYPES OF SAMPLES TESTED WERE' PLAIN PLATES, TRASVERSELY-WELDED PLATES WITH THE WELD REINFORCEMENT GROUND OFF, AND AS-WELDED PLATES. PRESTRESSING TESTS WERE PERFORMED ON AS-WELDED SPECIMENS AND ON WELDED SPECIMENS WITH REINFORCEMENTS REMOVED. IT WAS FOUND THAT PRESTRESSING GENERALLY IMPROVED THE FATIGUE LIFE OF THE SPECIMEN. THE STEPWISE INCREASE OF STRESSES, OR COAXING FROM BELOW ENDURANCE LIMIT, WAS CARRIED OUT TO INCLUDE A STUDY OF THE FATIGUE STRESS HISTORY AND CUMULATIVE DAMAGE. SOME PATTERNS OF STRESS HISTORIES RESULTED IN NOTED IMPROVEMENTS IN FATIGUE LIFE.]]></description>
      <pubDate>Thu, 15 Sep 1994 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/98119</guid>
    </item>
    <item>
      <title>DISCUSSION ON THE EFFECTS OF FLAME CAMBERING ON THE BENDING STRENGTH OF I-BEAMS</title>
      <link>https://trid.trb.org/View/98105</link>
      <description><![CDATA[THE DISCUSSION CONCERNS THE AUTHORS CONCLUSIONS THAT FLAME CAMBERING OF BEAMS REDUCES BEAM STRENGTH BY 20 OR 30 PERCENT, DEPENDING UPON THE PROCEDURE FOLLOWED, AND THAT STRUCTURES USING FLAME CAMBERED MEMBERS CANNOT BE DESIGNED ON THE BASIS OF VIRGIN MATERIAL PROPERTIES. REFERENCES: THE EFFECTS OF FLAME CAMBERING ON THE BENDING STRENGTH OF I-BEAMS, T. W. CROOKER AND H. L. HARRISON, WELDING JOURNAL, PP 445-S TO 548-S, DECEMBER 1965.]]></description>
      <pubDate>Thu, 21 Jul 1994 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/98105</guid>
    </item>
    <item>
      <title>CORROSION TESTS ON METALLIZED COATED STEEL-10 YEAR REPORT</title>
      <link>https://trid.trb.org/View/106551</link>
      <description><![CDATA[THE RESULTS OF A 10 YEAR INSPECTION OF METALLIZED COATED STEEL PANELS INDICATE SIGNIFICANTLY THE CORROSION PROTECTION LIFE OF SOME TYPES AND THICKNESSES OF METALLIZED COATINGS UNDER NUMEROUS ENVIRONMENTAL CONDITIONS. ALL ALUMINUM COATINGS, SEALED OR UNSEALED, IN ALL ENVIRONMENTS ARE STILL PROVIDING THE STEEL WITH ADEQUATE PROTECTION AGAINST CORROSION. THE MAJORITY OF 0.003 IN. THICK ZINC COATINGS EXPOSED TO THE ATMOSPHERE HAVE FAILED AS HAVE 0.003, 0.006 AND 0.009 IN. THICK ZINC COATINGS WHICH WERE EXPOSED TO SEA WATER IMMERSION ENVIRONMENTS. /AUTHOR/]]></description>
      <pubDate>Wed, 15 Jun 1994 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/106551</guid>
    </item>
    <item>
      <title>ARC WELDING OF WEATHERING STEELS</title>
      <link>https://trid.trb.org/View/98382</link>
      <description><![CDATA[BECAUSE OF THE INCREASED USE OF WEATHERING STEELS IN THE UNPAINTED CONDITION IN WELDED STRUCTURES, THERE HAS BEEN CONSIDERABLE INTEREST IN THE WEATHERING APPEARANCE OF THE WELD AND BASE METAL. ATMOSPHERIC EXPOSURE SPECIMENS WERE PREPARED USING A NUMBER OF COMMERCIAL ELECTRODES. THE RESULTS AFTER TWO YEARS OF EXPOSURE ARE PRESENTED. CLOSE MATCHING OF WELD DEPOSIT AND BASE METAL COMPOSITIONS RESULT IN UNIFORMITY OF COLOR THROUGHOUT THE EXPOSURE PERIOD. AN EVALUATION TO DEVELOP A SUBMERGED-ARC WELDING PROCEDURE THAT PROVIDES A WELD DEPOSIT OF A SIMILAR COMPOSITION TO THAT OF THE BASE PLATE IS DESCRIBED. FINALLY, A WELDABILITY STUDY ON A NEW HIGHER STRENGTH VANADIUM-MODIFIED WEATHERING STEEL WAS CONDUCTED TO DETERMINE PROPER WELDING RECOMMENDATIONS FOR THIS GRADE. /AUTHOR/]]></description>
      <pubDate>Thu, 19 May 1994 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/98382</guid>
    </item>
    <item>
      <title>LASER BEAM WELDING ELECTRONIC-COMPONENT LEADS</title>
      <link>https://trid.trb.org/View/106536</link>
      <description><![CDATA[THE FEASIBILITY OF USING THE LIGHT BEAM FROM A LASER FOR MAKING FUSION WELDS WAS STUDIED. THESE WELDS WERE TO BE APPLICABLE TO JOINING ELECTRONIC-COMPONENT LEADS. CROSS-WIRE , CROSS-RIBBON, PARALLEL WIRE JOINTS, AND OTHER JOINT DESIGNS, ALL USING NICKEL WIRE AND RIBBON WERE TESTED. WELDS WERE EVALUATED BY VISUAL AND METALLOGRAPHIC EXAMINATION AND THE JOINT STRENGTH OF PARALLEL WIRE WELDS WAS DETERMINED. THE DIFFERENCES BETWEEN LASER WELDING AND RESISTANCE CROSS- WIRE WELDING WERE DISCUSSED. THE EFFECT OF THESE DIFFERENCES ON THE DESIGN OF WELDING ELECTRONIC CIRCUITY IS POINTED OUT . IT IS SUGGESTED THAT OTHER DESIGNS MORE SUITABLE FOR LASER WELDING BE DEVELOPED.]]></description>
      <pubDate>Sun, 20 Feb 1994 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/106536</guid>
    </item>
    <item>
      <title>FABRICATING STEEL THAT PAINTS ITSELF</title>
      <link>https://trid.trb.org/View/106531</link>
      <description><![CDATA[AN EXPOSED STEEL THAT PAINTS ITSELF WAS FIRST EMPLOYED TO FRAME A HUGE SKYROOF BETWEEN TWO PARALLEL SIX-STORY BUILDINGS AT THE BELL TELEPHONE LABORATORIES DEVELOPMENT CENTER IN HOLMDEL, N. J. THE SPECIALITY STEEL, MAYARI R WEATHERING STEEL, WAS SPECIFIED FOR THE 457 BY 98 FT SKYLIGHT BY THE LATE ARCHITECT EERO SAARINEN. MAYARI R INCORPORATES THE HIGH-STRENGTH QUALITIES OF ASTM A242 STEEL. WHILE A242 HAS A MINIMUM OF TWICE THE CORROSION RESISTANCE OF CARBON STEEL, MAYARI R PROVIDES 4-6 TIMES THE RESISTANCE. AS IT WEATHERS, MAYARI R DEVELOPS A PROTECTIVE COATING MUCH LIKE PAINT THAT IS BOTH PERMANENT AND DECORATIVE. THIS MAINTENANCE-FREE PROTECTIVE COATING TAKES ON A DEEP BROWN HUE WITH ADVANCED AGING.]]></description>
      <pubDate>Tue, 15 Feb 1994 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/106531</guid>
    </item>
    <item>
      <title>FATIGUE CRACK PROPAGATION IN BUTT WELDS CONTAINING JOINT PENETRATION DEFECTS</title>
      <link>https://trid.trb.org/View/109619</link>
      <description><![CDATA[FATIGUE TESTS HAVE BEEN CONDUCTED ON LOW CARBON STEEL BUTT WELDS CONTAINING JOINT PENETRATION DEFECTS (LESS THAN COMPLETE JOINT PENETRATION). THE GROWTH OF FATIGUE CRACKS FROM SIMULATED PENETRATION DEFECTS WAS MONITORED BY RADIOGRAPHY. THESE MEASUREMENTS ALLOWED THE TOTAL FATIGUE LIFE TO BE SEPARATED INTO PERIODS OF CRACK INITIATION AND CRACK PROPAGATION. THE INITIATION PERIOD WAS FOUND TO OCCUPY APPROXIMATELY ONE-HALF OF THE TOTAL FATIGUE LIFE AND CONSISTS OF THE CYCLES NECESSARY TO SHAKE DOWN THE RESIDUAL STRESSES IN THE WELD AND TO FORM THE PENETRATION DEFECT INTO AN ACTIVE FATIGUE CRACK. /AUTHOR/]]></description>
      <pubDate>Sun, 08 Jul 1973 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/109619</guid>
    </item>
    <item>
      <title>FATIGUE PROPAGATION IN A514 BASE PLATE AND WELDED JOINTS</title>
      <link>https://trid.trb.org/View/109601</link>
      <description><![CDATA[FATIGUE STUDIES OF A514 BASE TYPE PLATE MATERIAL AND ASSOCIATED WELDMENTS REVEALED THAT THE FATIGUE CRACK GROWTH RATE WAS PRIMARILY A FUNCTION OF THE APPLIED STRESS INTENSITY RANGE. CRACK GROWTH RATES WERE NOT FOUND TO BE SENSITIVE TO SPECIMEN CONFIGURATION OR MATERIAL THICKNESS. CRACK PROPAGATION STUDIES IN TRANSVERSE WELDMENTS AND THE ASSOCIATED HEAT AFFECTED ZONE REVEALED POSSIBLE RESIDUAL STRESS EFFECTS IN CERTAIN PLATES WHERE FATIGUE CRACK PROPAGATION RATES WERE FOUND TO BE CONSIDERABLY SLOWER THAN ANTICIPATED. /DOT/]]></description>
      <pubDate>Tue, 13 Mar 1973 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/109601</guid>
    </item>
    <item>
      <title>FATIGUE OF STEEL WELDMENTS</title>
      <link>https://trid.trb.org/View/109602</link>
      <description><![CDATA[THE LITERATURE DEALING WITH THE FATIGUE OF STEEL WELDMENTS HAS BEEN REVIEWED AND THE EFFECT ON FATIGUE STRENGTH OF TESTING CONDITIONS, WELD GEOMETRY, WELD METAL SOUNDNESS, RESIDUAL STRESS, AND THE MICROSTRUCTURE OF THE WELD METAL AND HEAT-AFFECTED ZONE HAS BEEN EXAMINED. IT HAS BEEN CLEARLY SHOWN THAT WELD GEOMETRY IS THE MOST IMPORTANT FACTOR IN DETERMINING THE FATIGUE PROPERTIES OF A WELD. FOR A GIVEN WELD GEOMETRY, THE FATIGUE STRENGTH IS DETERMINED BY THE SEVERITY OF THE STRESS CONCENTRATION AT THE WELD TOE OR, WITH THE WELD REINFORCEMENT REMOVED, BY THE STRESS CONCENTRATION AT WELD METAL DEFECTS. DIFFERENT WELDING PROCESSES INFLUENCE FATIGUE STRENGTH BY PRODUCING WELDS WITH DIFFERENT DEGREES OF SURFACE ROUGHNESS AND WELD METAL SOUNDNESS. /DOT/]]></description>
      <pubDate>Tue, 13 Mar 1973 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/109602</guid>
    </item>
    <item>
      <title>STUD WELDING THROUGH HEAVILY GALVANIZED DECKING</title>
      <link>https://trid.trb.org/View/109411</link>
      <description><![CDATA[SHEAR CONNECTORS WELDED THROUGH HEAVILY GALVANIZED DECKING WITH PROCEDURES NORMALLY USED FOR BARE METAL SURFACES DEVELOP EXCESSIVE POROSITY, POOR FUSION AND LOSS OF FILLET BECAUSE OF VIOLENT SPATTER. THE ZINC CAN BE DRIVEN OUT OF THE WELD AREA BY PROLONGING THE WELD CYCLE AND VENTING THE ARC SHIELD MORE FREELY. INCREASING THE INNER VOLUME OF THE ARC SHIELD MINIMIZES SPATTER AND PERMITS THE FORMATION OF AN ACCEPTABLE WELD FILLET CONTOUR. AN ARCH SHIELD AND WELDING PROCEDURES HAVE BEEN DEVELOPED TO PRODUCE SATISFACTORY STUD WELDS THROUGH GAGE DECKING WITH A 1.25 OZ. ZINC COATING FOR .75 IN. STUD DIAMETERS. THE ARC SHIELD, STUD BASE COMBINATION WAS SUCCESSFULLY QUALIFIED UNDER AWS CODES D1.0-66 AND D2.0-66. /WJ/]]></description>
      <pubDate>Wed, 13 Dec 1972 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/109411</guid>
    </item>
    <item>
      <title>COARSE GRID SANDWICH CONSTRUCTION FOR WELDED STEEL STRUCTURES</title>
      <link>https://trid.trb.org/View/109574</link>
      <description><![CDATA[BECAUSE OF THE MANY INNOVATIONS BEING MADE IN THE DEVELOPMENT OF MATERIALS AND IN FABRICATION AND CONNECTION TECHNIQUES, SANDWICH CONSTRUCTION FOR WELDED STEEL STRUCTURES MAY SOON BE FEASIBLE. METHODS OF ANALYSIS ARE DISCUSSED ALONG WITH A FABRICATION METHOD THAT MAY LEAD TO ECONOMICAL SOLUTIONS. THE COARSE GRID SANDWICH AS DEFINED HERE CONSISTS OF A RELATIVELY COARSE PATTERN OF STEEL BARS FRAMED AND SANDWICHED BETWEEN TWO SHEETS OF STEEL. THIS GENERAL TYPE OF SANDWICH IS PARTICULARLY WELL SUITED FOR WELDED STRUCTURES NOT ONLY BECAUSE OF THE LIKELIHOOD OF THE EXISTENCE OF HIGH SHEAR AND BENDING CONDITIONS BUT ALSO BECAUSE QUALITY OF CORE MATERIAL CAN BE CLOSELY CONTROLLED; SHEAR STRENGTH OF THE CORE CAN BE DESIGNED FOR ANY DESIRED VALUE; AND THE CORE CAN BE LOCALLY REINFORCED AND ITS ARRANGEMENT AND ORIENTATION ALTERED TO SUIT A GIVEN DESIGN. IN GENERAL, SANDWICH MATERIALS CAN BE USED EFFECTIVELY WHERE EITHER LOCAL OR GENERAL INSTABILITY DOES NOT ALLOW THE FULL UTILIZATION OF THE STRENGTH OF CONVENTIONAL MATERIALS. A FEW OF THE POSSIBLE APPLICATIONS IN CIVIL ENGINEERING STRUCTURES WOULD INCLUDE GIRDER WEBS, FLOORING SYSTEMS, BOX GIRDERS, BUILT UP COLUMNS, LOAD CARRYING WALLS, BRIDGE DECKS AND FOLDED PLATES. /AUTHOR/]]></description>
      <pubDate>Mon, 05 Jun 1972 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/109574</guid>
    </item>
    <item>
      <title>PARAMETER STUDY OF ELECTRON-BEAM WELDING</title>
      <link>https://trid.trb.org/View/106996</link>
      <description><![CDATA[BEAD ON PLATE WELDMENTS WERE MADE ON A 2-IN THICK HY-130 STEEL PLATE TO DETERMINE THE EFFECTS OF WORK DISTANCE, BEAM FOCUS, ACCELERATING VOLTAGE, BEAM CURRENT, TRAVEL SPEED, TRAVEL DIRECTION, AND PREHEAT TEMPERATURE ON PENETRATION, WELD GEOMETRY, AND SOUNDNESS. THE RESULTS SHOWED THAT SOUND WELDS OF ANY PENETRATION UP TO 2 IN. COULD BE PRODUCED BY SELECTING THE PROPER COMBINATIONS OF PROCESS PARAMETERS. THE IMPORTANCE OF THE FOCAL POINT OF THE BEAM RELATIVE TO THE PLATE SURFACE WAS SHOWN, AND A METHOD OF FOCUSING THE BEAM AT HIGH BEAM POWER WAS DEVELOPED. /AUTHOR/]]></description>
      <pubDate>Tue, 07 Mar 1972 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/106996</guid>
    </item>
    <item>
      <title>A CRITICAL REVIEW OF WELD METAL EMBRITTLEMENT</title>
      <link>https://trid.trb.org/View/106982</link>
      <description><![CDATA[SEVERAL TYPES OF EMBRITTLEMENT IN FERROUS ALLOY WELDS HAVE BEEN POSTULATED, INCLUDING POSTWELD HEAT TREATMENT (STRESS RELIEF) EMBRITTLEMENT, TEMPER EMBRITTLEMENT, AND CREEP EMBRITTLEMENT. THE EFFECTS OF THESE FORMS OF EMBRITTLEMENT ON WELD METAL ITSELF ARE CONSIDERED. INITIALLY, THE EFFECTS OF WELDING PROCESS ON THE NOTCH TOUGHNESS OF AS-DEPOSITED WELDS ARE DISCUSSED. THE PHENOMENOLOGICAL ASPECTS OF EACH TYPE OF EMBRITTLEMENT ARE THEN DESCRIBED, FOLLOWED BY AN EXAMINATION OF VARIOUS PROPOSED MECHANISMS OF EMBRITTLEMENT. FEW STUDIES HAVE BEEN CONDUCTED IN WHICH THE SEVERAL FORMS OF EMBRITTLEMENT HAVE BEEN SIMULTANEOUSLY EVALUATED IN ONE MATERIAL. THEREFORE, QUALITATIVE COMPARISONS ARE MADE BASED UPON AVAILABLE INFORMATION. THE MAJOR FACTORS AFFECTING THE THREE FORMS OF EMBRITTLEMENT ARE ALLOY COMPOSITION, PURITY AND MICROSTRUCTURE. THE WELDING PROCESS IS IMPORTANT THROUGH ITS EFFECT ON PURITY AND MICROSTRUCTURE. /AUTHOR/]]></description>
      <pubDate>Mon, 27 Sep 1971 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/106982</guid>
    </item>
    <item>
      <title>EFFECT OF WELDING CONDITIONS ON COOLING RATE AND HARDNESS IN THE HEAT AFFECTED ZONE</title>
      <link>https://trid.trb.org/View/106888</link>
      <description><![CDATA[RELATIONSHIPS HAVE BEEN ESTABLISHED BETWEEN THE ARC WELDING PARAMETERS AND THE WELD SIZE AND COOLING RATE FOR THE CONTINUOUS-ELECTRODE PROCESSES OVER A WIDE RANGE OF TRAVEL SPEEDS. THE CROSS-SECTIONAL AREA OF THE FUSED METAL IS RELATED TO THE PRODUCT OF THE EFFECTIVE HEAT AND THE CUBE ROOT OF THE TRAVEL SPEED; THE COOLING RATE IS INVERSELY PROPORTIONAL TO THE HEAT INPUT, AS PREDICTED BY CLASSICAL HEAT FLOW THEORY. THE EFFECT OF TRAVEL SPEED AND INDENTATION LOAD ON THE MEASURED HARDNESS IN THE HEAT-AFFECTED ZONE OF A LOW-ALLOY STEEL HAS ALSO BEEN INVESTIGATED. THE HARDNESS RANGE WAS FOUND TO BE APPROXIMATELY THE SAME FOR A FIXED HEAT INPUT, REGARDLESS OF THE TRAVEL SPEED USED. THE USE OF LOW INDENTATION LOADS PRODUCED A WIDE RANGE OF HARDNESS VALUES, DUE TO THE HETEROGENEOUS CHARACTER OF THE HEAT-AFFECTED ZONE MICROSTRUCTURE. HEAVIER LOADS PRODUCED AVERAGE HARDNESS VALUES, WHICH WOULD BE EXPECTED TO CORRELATE MORE CLOSELY WITH CRACK SENSITIVITY. /AUTHOR/]]></description>
      <pubDate>Mon, 13 Apr 1970 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/106888</guid>
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