WELDED, BOLTED AND RIVETED CONNECTIONS IN HIGH STRENGTH LOW ALLOY STEEL IN STRUCTURES SUBJECTED TO HIGH DYNAMIC LOADING.

Projektinformationen

ID Finanzhilfevereinbarung: 7210-KD-607

Startdatum 1 Januar 1985

Enddatum 30 Juni 1989

Finanziert unter

• Medium-term orientation (ECSC) "steel research in relation to the General Objectives for Steel", 1981-1985

Gesamtkosten € 0,00

EU-Beitrag Keine Daten

Koordiniert durch

STICHTING STAALCENTRUM NEDERLAND
Netherlands

Ziel

THE APPLICATION OF HSLA STEELS TO STRUCTURES SUBJECTED TO HIGH DYNAMIC LOADING CAN ONLY YIELD BENEFITS WHEN THE FATIGUE RESISTANCE OF JOINTS IS UPGRADED. UP TO NOW MOST EFFORTS IN THIS DIRECTION CENTRE ON WELDED JOINTS IN (COLD-ROLLED) SHEET OF THICKNESSES BELOW 3 MM, AS USED IN THE CAR INDUSTRY.
HOT-ROLLED, THERMOMECHANICALLY TREATED, LOW CARBON HSLA STEELS, WITH PLATE THICKNESSES RANGING FROM 3 TO 9 MM, HAVE, IN THIS RESPECT, RECEIVED MUCH LESS ATTENTION UP TO NOW, ALTHOUGH THE APPLICATION POSSIBILITIES FOR TRUCKS, RAILWAY VEHICLES, EARTH-MOVING EQUIPMENT, ETC. ARE QUITE OBVIOUS AND IMPORTANT.

UNDER A PREVIOUS RESEARCH PROJECT WELDED, BOLTED AND RIVETED JOINTS WERE EVALUATED FOR THEIR FATIGUE STRENGTH.
FATIGUE TESTS HAVE BEEN CARRIED OUT WITH SINUSOIDAL AND TWO TYPES OF RANDOM LOADING.

THE RESULTS, ALTHOUGH NOT YET CONSOLIDATED, ARE VERY SATISFACTORY INDEED. IT IS REGARDED AS IMPORTANT BY THE PARTICIPANTS THAT THIS RESEARCH PROGRAMME GETS A DIRECT FOLLOW-UP IN ORDER TO:
- FURTHER IMPROVE JOINT EFFICIENCY
- ASSESS THE RELIABILITY OF MORE COMPLEX JOINTS
WITH REGARD TO BOTH CONSTANT- AND RANDOM-AMPLITUDE FATIGUE.

THE PROPOSED FOLLOW-UP RESEARCH PROGRAMME COVERS:
- EVALUATION OF DIFFERENT WELDING TECHNIQUES
- APPLICATION POSSIBILITIES OF HIGHER STRENGTH BOLTS FOR FRICTION-GRIP JOINTS
- FURTHER OPTIMIZATION OF JOINTS WITH H.T. RIVETS
- ASSESSMENT OF THE RELIABILITY OF BASICALLY IMPROVED JOINING TECHNIQUES WHEN APPLIED IN COMPLEX AND VERY COMPLEX STRUCTURAL CONFIGURATIONS (I.E. A COMPLETE TRUCK CHASSIS),
ALL WITH REGARD TO FATIGUE/RESISTANCE IN THE CASE OF CONSTANT AMPLITUDE AND SERVICE-TYPE RANDOM LOADING.

Programm/Programme

• ECSC-STEELRES 6C - Medium-term orientation (ECSC) "steel research in relation to the General Objectives for Steel", 1981-1985

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Aufforderung zur Vorschlagseinreichung

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Finanzierungsplan

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Koordinator

STICHTING STAALCENTRUM NEDERLAND

• EU-Beitrag: Keine Daten
• Adresse: GROOTHANDELSGEBOUW A4 STATIONPLEIN 45 POSTBUS 29076 ; ROTTERDAM ; Niederlande
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