Shock-induced stochastic dynamic analysis of cylinders made of saturated porous materials using MLPG method: considering uncertainty in mechanical properties

مدل‌سازی میرایی رایلی و توابع شکل شعاعی مختلف در ساختارهای متخلخل با استفاده از روش بدون شبکه تحت بارهای دینامیکی

“…xtOkt "1 "CU= xO=O x=Q= |OOa hrDNt |=yVwQ u}@ xU}=kt w pNrNDt O=wt |=yx]@= Q uwO@ VwQ 'CU= xOW xHwD u; x@ Q}N= |xyO QO xm u} wv |OOa |=yVwQ R= |m} QO = Q xm@W uwO@ VwQ |=yOQ@Q=m [7] '2013 u= Q=mty w 3 lOqU= "CU= xm@W [9w8] 'u= Q=mty w lOqU= "Ov=xO=O x=Q= swra Q}=U w |UOvyt hrDNt p=Ut pL =@W= pNrNDt O=wt |QwLt uQ=kD |= Q=O p=Ut 'xm@W uwO@ VwQ R= xO=iDU= =@ |=yMU=B QO O=wt |Q}PBPwiv w |DNU C= Q}}eD Q=F; u}vJty w uoty=v w xDUw}B |t_=m "Ov=xOQm |UQQ@ = Q pNrNDt O=wt QO |Pivt Q=Wi w =yVvD '|}=Hx@=H |Dq=tDL= p}rLD x@ xm@W uwO@ VwQ R= xO=iDU= =@ R}v [10] '2017 u= Q=mty w "Ov=xDN=OQB |m}t=v}O Q=@ CLD pNrNDt O=wt R= xOW xDN=U |=yxR=U xm CU= pmW`@=wD R= xO=iDU= 'xm@W uwO@ VwQ syt |=y|oS}w R= |m} @=wD O}rwD |= Q@ "CU= xOW xm@W uwO@ VwQ QO hrDNt |=yOQm}wQ O=H}= x@ QHvt [12] ' 5 |rLt nv}o} Qm [11] ' 4 lQLDt C=a@Qt |xv}tm xrtH R= |}=yVwQ 'pmW xOQm x=Q= = Q`=@W= pNrNDt O=wt s}mLD |x}Q_v [1] '|o= RQD 'Q=@ u}DUNv |= Q@ 'Oa@ =yp=U "CU= xOw@ pNrNDt O=wt Q=DiQ XwYNQO C=ar=]t |=v@t xm CU= pNrNDt O=wt |=yx]@= Q VQDUo ut[ [3w2] ' 1 Cw}@ '|o= RQD C=ar=]t |x}=B Q@ O=}R OQ@Q=m "OQm x=Q= = Q pNrNDt |=y\}Lt QO u=UWm G=wt= Q=WDv= |x}Q_v '`=@W= u= QoWywSB xm CU= xOW ? @U |UOvyt |=yxN=W R= |Q=}U@ QO pNrNDt O=wt |=y\}Lt w =yxR=U QO VvQm w VvD |m}t=v}O w |m}D=DU= p}rLD |xv}tR QO [5] '1991 u= Q=mty w nvJ C=ar=]t j@=]t [4] "OvyO s=Hv= |}=yVywSB pNrNDt =yu; Q@ sm =L pO=aD p}Uv=Qi}O |=yxrO=at |oO}J}B ?…”

“…QO "OQ=O OwHw [14] ' 7 |a=aW \=kv |@=}uwQO w [13] [17] ' 9 EXP [16] ' 8 MQ`@=wD [15] "OwW|t <=[Q= QmvwQm |=DrO`@=D w OL=w VwQ R= OQ@Q=mQB |a=aW pmW`@=wD R= xvwtv OvJ [19] ' 11 Log w [18] ' 10 " s zz 2" s rz c 11 @ i @r + c 12 i r c 12 @ i @z Q( @ i @r + i r ) Q @ i @z c 12 @ i @r + c 11 i r c 12 @ i @z Q( @ i @r + i r ) Q @ i @z c 12 @ i @ + c 12 i r c 12 @ i @z Q( @ i @r + i r ) Q @ i @z c 44 @ i @z c 44 @ i @r 0 0 c 11 @ i @r + c 12 i r + Q( @ i @r + i r ) c 12 @ i @z + Q @ i @z (R + Q)( @ i @r + i r ) (R + Q) @ i @z c 12 @ i @r + c 11 i r + Q( @ i @r + i r ) c 12 @ i @z + Q @ i @z (R + Q)( @ i @r + i r ) (R + Q) @ i @z c 12 @ i @r + c 12 i r + Q( @ i @r + i r ) c 12 @ i @z + Q @ i @z (R + Q)( @ i @r + i r ) (R + Q) @ i @z c 44 @ i @z c 44 @ i @r 0 0 o rn z n (R + Q) @ i @z o rnrQ( @ i @r + i r ) rnrQ @ i @z rnrR( @ i @r + i r ) rnrR @ i @z rn z Q( @ i @r + i r ) rn z Q @ i @z rn z R( @ i @r + i r rn z R @ i @z (1 ')s 0 [23] "xm@W [23] [8] '2014 u= Q=mty w QO u}vJty "CU= xOW xO=iDU= 31 |x]@= Q C=YNWt =@ 13 =} Q@ s=v =@ pNrNDt "CU= pNrNDt O=wt uOw@`=@W= Q@ ZQi 'Q[=L p=Ft K = 8 0 10 9 (N=m 2 ) G = 6 0 10 9 (N=m 2 ) R = 4 7 10 8 (N=m 2 ) Q = 1 511 10 9 (N=m 2 ) = 1 9 10 10 (m 4 =Ns) s = 2800(kg=m 3 ); = 0 8; = 0 19 f = 1000(kg=m 3 ); A = 0 66' f (31) [24] %OwW|t u=}@ 33 |x]@= Q j@=]t sQH…”