آنالیز عددی رفتار دینامیکی پادشهودی تیرهای کشسانی - خمیر پین دار تحت بار ضربه‌یی با ملاحظه ی اثرات سخت‌شوندگی خطی

Abstract

R}r=v; '|}x@Q[ |Q=PoQ=@ '|O=aQ}e MU=B '|OwyWO=B Q=DiQ %|O}rm u=oS=w "|Q}tN |v=UWm |m}t=v}OxtOkt "1 Ov=xDUv=wD =yv; R= |NQ@ \ki =t= [1] xOt; CUO x@ OwOLt p[=iD VwQ w OwOLt |}=Hx@=H Qov=Wv xm |}=Hx@=H |ivt |=yxOwOLt QO |}=yv |v=UWm C=W=aDQ= C=W=aDQ= =yv; |k@=t w Ovvm |v}@V}B = Q CU= |r=ta= Q=@ CyH hqN QO |}=yv "Ov=xOQm |v}@V}B = Q C@Ft |xOwOLt QO |}=yv |v=UWm p[=iD VwQ w s}kDUt |Q}op}Uv= Qi}O OQm}wQ R= |Q}oxQy@ =@ [2] w}r w |r Q=m x@ T=UL Q=}U@ |xrUt u}= |xar=]t |= Q@ = Q QDt=Q=B C}U=UL VwQ '|RmQt QDt=Q=B C}a]k sOa Q_v x]kv R= = Q =yQ}D |OwyWO=B MU=B [3] u}vJty =yv; "OvOQ@ |O= R; xHQO xU pOt l} R= [4] u= Q=mty w |r 'u}= Q@ xwqa "OvO=O Q= Qk |UQQ@ OQwt |=yQDt= Q=B x@ |OwyWO=B |x}L=v |oDU@=w lQO |= Q@ '|rv=W |Q}tN |v=UWm "OvOQ@ xQy@ sDU}U h}YwD w |OwyWO=B Q=DiQ |v}@V}B QO |OOa |=yOm R= |Q=}U@ xm =Hu; R= |= Q@ R}v OwOLt CkO =@ |@} QkD |=ypOt R= |NQ@ [1] 'OvDUy u=wD=v u; |=y|oS}w R= TB Q}D Q=DiQ R}r=v; |= Q@ "CU= xOW x=Q= Q=DiQ u}= R= |}xS} w |=yx@vH |UQQ@ XYNDt \UwD ?r=H C}ak=w l} '=m}Qt= |xOLDt Cq=}= QwWm QO 1985 p=U QO "OW hWm [1] w} VQ=mty w Rvwt}=U '=yQ}D |Q}tN |v=UWm l}t=v}O QwyWt xm |Dkw 'u}at \}=QW CLD xm O=O|t u=Wv =yv; \UwD xDiQo CQwY C=@U=Lt Qw]x@ w[a u}= Qo = 'OwW|t OQ=w |Q}tN |v=UWm Q}D Q@ |[Qa |}x@ Q[ Q=@ l} pmW Q}}eD O=H}= |= Q@ |i=m COW |= Q=O R}v xOQ=w Q=@ w OW=@ xOW O}kt |QwLt x@ 'Q}D |t=O R}N u; QO xm OQ=O OwHw |Q=PoQ=@ R= |mJwm |x}L=v 'OW=@ |Q}tN R= "OwW|t`k=w u; CyH hqN QO 'OQ}o Q= Qk |}x@ Q[ Q=@ CyH QO xm u}= |=H =yv; 'Ow@ C=W}=tR; QO Q=_Dv= p@=k w 1 |OwyW Q=DiQ hqNQ@ Q=DiQ u}= xm =Hu; |=yMU=B xJQo = "OvO}t=v Q}D 3 |O=aQ}e Q=DiQ =} 2 |OwyWO=B Q=DiQ = Q xO}OB u}= |= RH= VwQ |OOa Om xO |xr}Uw x@ 'w} w Rvwt}=U \UwD xOW h} QaD |xS}w |xrUt