sel ma90 3 Posted April 17, 2020 Report Share Posted April 17, 2020 Salut tout le monde ! S'il vous plaît , je veux savoir si la précontrainte est une valeur algébrique ou positive ? Et on sait bien pour déterminer la nature de la section , il faut calculer la précontrainte (P) sur-critique et la précontrainte (P) sous-critique , puis on compare et on prend la plus grande .. Dans notre cas , j'ai trouvé P sous critique <0 et P sur-critique >0 mais la valeur absolue de P sous-critique > P sur-critique .... On prend quelle valeur ? Et mercii d'avance Quote Link to post Share on other sites
breton2250 229 Posted April 18, 2020 Report Share Posted April 18, 2020 Quote Link to post Share on other sites
breton2250 229 Posted April 18, 2020 Report Share Posted April 18, 2020 Quote Link to post Share on other sites
sel ma90 3 Posted April 18, 2020 Author Report Share Posted April 18, 2020 Quote Link to post Share on other sites
breton2250 229 Posted April 18, 2020 Report Share Posted April 18, 2020 Quote Link to post Share on other sites
breton2250 229 Posted April 18, 2020 Report Share Posted April 18, 2020 Quote Link to post Share on other sites
breton2250 229 Posted April 18, 2020 Report Share Posted April 18, 2020 Quote Link to post Share on other sites
sel ma90 3 Posted April 18, 2020 Author Report Share Posted April 18, 2020 (edited) Edited April 18, 2020 by Ha ni Quote Link to post Share on other sites
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