Esfuerzo de Origen Termico
March 18, 2023 | Author: Anonymous | Category: N/A
Short Description
Download Esfuerzo de Origen Termico...
Description
LRJ\LY[H GL HYO@LF WÏYCO H
BAMHY
LRJ\LY[H GL HYO@LF WÏYCO H
B A M H Y
M M
W Mh
M
ΗM
α sl glfhcofa Bhljobolftl gl gomataboòf tïrcoba y ls barabtlrãstoba gl
baga catlroam4 sus vamhrls lstáf taiumaghs y sl lxprlsaf lf ufogagls 1/»B. Lf lm bash cas socpml, sl tolfl ufa iarra gl mhf`otug mhf`otug Mh Mh;;
Mh Mh goma gomata ta ufa ufa ba baft ftog ogag ag ofbrlclfta.
ΗM
buafgh ma tlcplratura gl Mh sl
Mh M M3Mh+ΗM
ΗM
Ї3ΗM/Mh3(M-Mh)/Mh Ї
ls phsotovh
Mh Mh bhftral bhftral ufa baftogag ΗM buafgh ma tlcplratura goscofuyl
M
ΗM
Mh
M3Mh-ΗM
Ї3ΗM/Mh3(
M-Mh )/Mh
Ї
ls fl`atovh
Ma lxplrolfboa na glchstragh qul so ofbrlclftachs ma tlcplratura gl uf bulrph ïstl sl gomata ( auclfta sus goclfsohfls) y so sl glbrlclfta ma tlcplratura ïstl sl bhftral (rlgubl sus goclfsohfls)4 lstl jlfòclfh ls rlvlrsoiml, ls glbor, buafgh lm bulrph vulmvl a ma tlcplratura ofoboam, rlbuplra mas goclfsohfls qul tlfãa ofoboamclftl.
Lxplroclftamclftl sl na hitlfogh qul ma varoaboòf gl ma mhf`otug bhf ma tlcplratura l s u f a j u f b o ò f m o f l a m , p h r h q u l m h s m amar`acolfth slráf gorlbtaclftl prhphrbohfamls a mhs ofbrlclfths gl tlcplratura. ℒ 3 ℒh (1 + a ΗW)
h iolf Ηm 3 a ℒ ΗW
Ma bhfstaftl gl prhphrbohfamogag α ls ufa barabtlrãstoba glm catlroam bhljobolftl gl jãsoba gomataboòf moflam. y sl mmaca
Mhs vamhrls qul thca lstl bhljobolftl para mhs catlroamls cás usuamls lf bhfstrubboòf sl rljmlkaf lf ma taima qul sl culstra lf ma so`uolftl goaphsotova.
Lf bhfslbulfboa, lm bacioh ufotaroh lf ma mhf`otuggl gltlcplratura, ma iarra gliogh ma varoaboòf ΗW, aslrá;
m
m
a
W
Ls lvoglftl qul so ma iarra shcltoga a uf bacioh gl tlcplratura ls moirl, fh aparlblrá tlfsoòf am`ufa, ya qul fh lxostl fof`ufa julrza shirl ma cosca. Lf bacioh, so ma iarra bhch jrlbulftlclftl hburrl lstá ocplgoga a amar`arsl, lm jlfòclfh ls lquovamlftl a ufa bhcprlsoòf buyh abhrtacolfth sla o`uam am amar`acolfth tïrcobh.
Nhhdl Uhr ma mly gl , lf ma iarra sl brlará ufa tlfsoòf fhrcam gaga phr ma lbuaboòf
s
3 -L 3 -L a ΗW
Lf ma bhfstrubboòf y lf lm goslñh colcirhs gl uf clbafosch h gl lmlclfths lstrubturamls, ls flblsaroh tlflr lf bulfta mas gljhrcabohfls tïrcobas, shirl thgh buafgh sl lcpmlaf gostofths catlroamls.
Am`ufas vlbls, vlbls, mhs vamhrls glm
bhljobolftl gl gomataboòf tïrcoba shf baso o`uamls, lfthfbls sl javhrlbl su ush bhfkufth, bhch hburrl bhf lm nhrco`òf y lm ablrh buafgh sl utomozaf acihs lf lm nhrco`òf arcagh.
Ls bhfvlfolftl utomozar lm so`uolftl prhblgocolfth para gltlrcofar mas tlfsohfls tïrcobas buafgh sl ocpoglf mas gomatabohfls; ‒ Rl bambuma ma gomataboòf, bhch so ïsta julra moirl. ‒ chfhaxoam Rl apmoba mapara julrza h bhcprlsoòf qulglma trabboòf polza hbupl ma phsoboòf a
ma qul lstá himo`aga phr mas mo`aguras ocpulstas. ‒ Rl nabl uf lsqulca `rájobh gl mhs ghs apartaghs aftlrohrls y`lhcïtrobas sl glguborálftrl gl ïmmas ma rlmaboòf h rlmabohfls gljhrcabohfls gliogas a mas varoabohfls tïrcobas y mas julrzas gl trabboòf h bhcprlsoòf apmobagas.
Lklcpmhs;
Ma vo`a rã`oga ofgljhrcaiml artobumaga lf lm pufth H lsttá bhm ls hm`a `aga ga gl gh ghs s tora raft ftls ls lmá más stobhs o`uamls. Gltlrcofar mhs lsjulrzhs lf mhs toraftls am bamlftarmhs ∊W hB .
Bhrtachs mhs toraftls l oftrhgubochs mas julrzas F1 y F9 Tjo`ura (i)S. O`uamafgh a blrh ma suca gl mhs chclfths gl mas julrzas rlsplbth a ma artobumaboòf H, nammarlchs F1 a + 9 F9 a 3 5
Ruphf`achs anhra qul, bhch rlsumtagh glm bamlftacolfth gl mhs toraftls, ma vo`a rã`oga `ora amrlglghr glm pufth H y hbupa ma phsoboòf A‟I‟
Tjo`ura (i)S.
Gl ma slclkafza gl mhs troáf`umhs HAA‟ y 3HII‟,
nammarlchs ∊ℒ9 3 9 ∊ℒ1
H gl abulrgh bhf mma a lbuab lbuaboòf oòf qul fhs ga lm amar`acolfth gl ufa iarra nhch`ïfla, shmobotaga lf sus lxtrlchs y bamlftaga ufojhrclclftl; U a W LR
F 9 L R
F a W 9 L R 1
a W
Ls glbor, F9 ‒ 9 F1 3 L R α ΗW
Ylshmvolfgh lsta lbuaboòf socumtáflaclftl bhf ma gl lquomoiroh, hitlfgrlchs, F1
9 L R a W <
y
F 9
1 L R a W <
1 ofgoba qul ma proclra iarra fh Lm so`fh fl`atovh gl F traiaka a trabboòf bhch sl supush aftlrohrclftl, sofh a bhcprlsoòf.
Rl trata gl uf prhimlca noplrlstátobh phr mh qul ls bhfvlfolftl suphflr qul lm lxtrlch suplrohr sl lfbulftra moirl. Lm GRM slrá bhch lm gl ma jo`ura. Lf lsta bhfgoboòf ma vo`a pulgl gljhrcarsl moirlclftl moirl clftl,, lfthf lfthfbls; bls; : 7 M a MW (92,7 x15 /» B )(1c)(< 15)» B 9,27 x15 c Lsta slrãa ma bhftrabboòf qul sujrorãa ma vo`a phr ljlbth tïrcobh lsta ls tafg fgh h su lx lxtr trlc lch h momoir irl. l. Bambumarlchs lfthfbls ma julrza qul slrãa flblsaroa para bhmmhbar lm lxtrlchs su bh sup plrohr gl ma vo vo` `a lf su phso sobboòf hro`ofam.
Gl ma rlmaboòf;
J
M. A. L
7
9
J
M <
9
(9,27 x15 c)(15bc )( 9,> x15 d ` / bc ) 1c
:
View more...
Comments
