TY - GEN
T1 - (Low-Cycle-) fatigue design according To DIN EN 1999-1-3 state of the art and current research
AU - Radlbeck, C.
AU - Rengstl, M.
AU - Pessel, S.
AU - Mensinger, M.
N1 - Publisher Copyright:
© 2016 Trans Tech Publications, Switzerland.
PY - 2016
Y1 - 2016
N2 - DIN EN 1999-1-3 presents a comprehensive framework for fatigue design of aluminum structures. Various structural details and joints are included. For safety checks against High-Cycle Fatigue, three design concepts are available: Safe-Life-Design, Damage-Tolerant-Design and Design assisted by Testing. Respective safe-life-design lines are based on a databank including results from stress controlled Wöhler fatigue tests. The phenomenon of Low-Cycle-Fatigue (<105 cycles) is treated in Annex F, giving design regulations for selected structural details. Thereby, the influence of different alloys and thus different yield strength values is not considered. Also plasticizing effects under high stress ranges are neglected. Engineers face the following questions: Which cycle numbers require (Low-Cycle-) fatigue design and thus where is the limit for static design? Furthermore, how to define the maximum allowable stress range? Respective answers are investigated in a current research project carried out by the Chair of Metal Structures, TU Munich. In this contribution, the state of the art of fatigue design according to DIN EN 1999-1-3 is presented. European design concepts are discussed in view of available data and new developments in research, quality control, fabrication of specimen as well as testing techniques. The focus is then laid on Low-Cycle Fatigue. A new concept, including the influence of alloy type and the effects of plasticizing, is worked on. To this purpose an extensive testing program has started, including a large number of strain-controlled-tests.
AB - DIN EN 1999-1-3 presents a comprehensive framework for fatigue design of aluminum structures. Various structural details and joints are included. For safety checks against High-Cycle Fatigue, three design concepts are available: Safe-Life-Design, Damage-Tolerant-Design and Design assisted by Testing. Respective safe-life-design lines are based on a databank including results from stress controlled Wöhler fatigue tests. The phenomenon of Low-Cycle-Fatigue (<105 cycles) is treated in Annex F, giving design regulations for selected structural details. Thereby, the influence of different alloys and thus different yield strength values is not considered. Also plasticizing effects under high stress ranges are neglected. Engineers face the following questions: Which cycle numbers require (Low-Cycle-) fatigue design and thus where is the limit for static design? Furthermore, how to define the maximum allowable stress range? Respective answers are investigated in a current research project carried out by the Chair of Metal Structures, TU Munich. In this contribution, the state of the art of fatigue design according to DIN EN 1999-1-3 is presented. European design concepts are discussed in view of available data and new developments in research, quality control, fabrication of specimen as well as testing techniques. The focus is then laid on Low-Cycle Fatigue. A new concept, including the influence of alloy type and the effects of plasticizing, is worked on. To this purpose an extensive testing program has started, including a large number of strain-controlled-tests.
KW - Aluminium
KW - Fatigue
KW - Low-cycle-fatigue (LCF)
KW - Strain-controlled material testing
UR - http://www.scopus.com/inward/record.url?scp=84989815014&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/KEM.710.439
DO - 10.4028/www.scientific.net/KEM.710.439
M3 - Conference contribution
AN - SCOPUS:84989815014
SN - 9783038356219
T3 - Key Engineering Materials
SP - 439
EP - 444
BT - Aluminium Constructions
A2 - Mazzolani, Federico M.
A2 - Bellucci, Francesco
A2 - Faggiano, Beatrice
A2 - Squillace, Antonino
PB - Trans Tech Publications Ltd
T2 - 13th International Aluminium Conference, INALCO 2016
Y2 - 21 September 2016 through 23 September 2016
ER -