Issue 15

I. S. Raju et and the anal roach was ap investigation e [7].

alii, Frattura ed ysis end-prod plied to the . All finite e

Integrità Struttu ucts have te global structu lement analy

rale, 15 (2011) chnical rigor ral and fract ses reported

35-49; DOI: 10 and their ap ure mechani in this paper

.3221/IGF-ESIS.1

5.05

bou def as p usi

nding respo ined. This ty art of the R ng the ABAQ

nses can be pe of buildin CC spallation US 3 comme

determined; g-block app root-cause rcial softwar

plicability lim cs analysis ef were perform

its fort ed

Figure 4 : B

uilding-block

approach.

An Th (se pea Pan con

alysis Models e finite eleme e Fig. 5(a)) in k-heating tem el 10 and T ditions. xt, the Panel ry temperatu ents in the ulting throug rly, the coat slip-side jog ection (i.e., t pendicular to ally, the plan lysis, the fin r the panel ne-strain mo n removed) i ailure criterio ead spallatio llation did n gle event at ations where chanics analy

First, an inte ing T-seal, an gligible inter be analyzed ide joggle re g the chord n in Fig. 6 w ented in Fig elevated stre and is nearly These result alysis of the Fig. 5(c)) w ause the tem try temperat the substrat sis results al the flight hi ig. 2 from fl wever, the s maly and pro

nt models u cluding Pane perature dis -seal 10. T 10 model sh re of the inte acreage regio h-the-thickne ing elements gle in the loc he gradient the chord d e-strain mod ite element m apex are nea del. The res s presented i n (or criteria n would occ ot occur. N a single loca potential sub ses.

sed for the a ls 9 and 10 (i tribution wa hese results own in Fig. grated mode ns. The pea ss (TTT) str are removed al region nea of stress in irection could el of the Pan odel did no rly constant ulting throu n Fig. 8. ) that is (or ur on many ote that the o tion on a si surface defe

nalysis effort .e., two of th s applied to t demonstrate 5(b) was co l. The mode k entry temp ess distributi in Fig. 7). A r the panel a the chord di be taken an el 10 slip-sid t include cra (see Fig. 6(c) gh-the-thickn are) based on WLE panels bserved spa ngle panel o cts may cont

are presente e hot panels) his integrate that a singl nsidered bec l had 3D elem erature distri on in the sub s shown in pex (i.e., the rection is ne d used in a p e joggle regi ze cracks or ), the maxim ess stress di linear-elasti on every mi llation event n each occu ribute to a sp

d in Fig. 5. , their adjoin d model. Ne e panel can ause its slip-s ents all alon bution show strate is pres Fig. 7(c), an hot region) arly zero). lane-strain an on (shown in defects. Bec um peak en stribution in c stress analy ssion, while s shown in F rrence. Ho allation ano

grated mode d attachmen action was o alone for th gion experie in the joggle as applied to . 7 (to show ss value is ob constant all s demonstra slip-side jogg as considered peratures in ure was appl e (the coatin one would su story shows ight history w tress analysis mpted the fo

l was conside t hardware. bserved betw e entry ther nced the hig regions and s the model. the TTT stre served all al along the ch te that any le [5]. . For the st the local reg ied to the en g elements h ggest that w that wide-spr ere limited results indi llowing frac

red The een mal hest hell The sses ong ord slice ress ion tire ave ide ead to a cate ture

Ne ent elem res clea the dir

per Fin ana nea pla bee A f spr spa sin loc me

3 A

BAQUS is a re

gistered tradema

rk of Dassault S

ystèmes.

39