✦ LIBER ✦

The application of fracture mechanics to prestressed concrete pressure vessels

✍ Scribed by G.D.T. Carmichael; K. Jerram

Publisher: Elsevier Science
Year: 1973
Tongue: English
Weight: 411 KB
Volume: 3
Category: Article
ISSN: 0008-8846
DOI: 10.1016/0008-8846(73)90083-5

No coin nor oath required. For personal study only.

✦ Synopsis

A fracture mechanics approach has been used to predict the approximate extent of cracking in a prestressed concrete pressure vessel subject to overpressure. The stress intensity factor has been calculated by means of the crack closure work concept and finite element stress analysis for a range of crack lengths. By comparing these results wlth published pseudo fracture toughness data for concrete the extent of cracking has been predicted. Um das zu erwartende AusmaB der RiBblldung in elnem vorgespannten Betondurckbeh~iter bel Uberlastung vorhersagen zu k~nnen, wurden Methoden der Bruchmechanlk herangezogen. Der SpannungslntensltHts faktor wurde mlt Hllfe der Methods der Arbelt zur ItIBschlleBung und elner Spannungsanalyse unter Verwendung flnlter Elements berechnet. Der EinfluB der Rl~lHnge wurde betrachtet. Uber elnen Verglalch dleser Ergebnlsse mlt Warren dar Pseudo-Bruchz~hlgkelt des BetonsD dle der Llteratur entnommen warden k~nnenj war es m~gllchj das AusmaS der Iti~blldung vorherzusagen.

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