چکیده مقاله
Beam type structures are one of the most important elements which have been studied intensively Many researches have been devoted to the study of the effects of moving loads on the dynamic behavior of beams On the other hand, the effect of cracks on the dynamic behavior of beams has received muchattention because of its importance in both mechanical and civil engineering applications Stress intensity factor SIF is a parameter of the crack which denotes the intense of stress at the cracked zone The effect of the SIF is more intense when the beam is subjected to a moving load Moving loads cause larger displacements and higher stresses than static loads in structures The presence of cracks affects the mechanical properties and also the strength of beams especially in cases in which beams are subjected to a moving load One kind of the moving loads which is more important in the engineering applications is harmonic moving load In this work the effect of a harmonic moving load on the stress intensity factor SIF for the single edge crack in a simply supported undamped Euler Bernoulli beam is investigated Also the effects of the loading duration, frequency and the speed of the moving load and also the location and size of the crack on the SIF are studied
کلیدواژهها
نویسندگان
S Rabiee
Department of Civil Engineering, University of Guilan, Rasht, P O Box ۳۷۵۶, Iran
N Fallah
S Rabiee Department of Civil Engineering, University of Guilan, Rasht, P O Box ۳۷۵۶, IranM Moosavi
M Moosavi
S Rabiee Department of Civil Engineering, University of Guilan, Rasht, P O Box ۳۷۵۶, IranN Fallah
شیوه ارجاع
Rabiee, S and Fallah, N and Moosavi, M,1391,The Effect of harmonic moving load on the stress intensity factor of cracked beam,9th International Congress on Civil Engineering,Isfahan
ارائهشده در
مجموعه مقالات نهمین کنگره بین الملی مهندسی عمران19 اردیبهشت 1391 · اصفهان