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PEPIA. Mtodos numricos Para Ingenieria Civil MecSnica_ 29/11/2018 I_/Se realize un experimento definir 12 relacin entre eI esfuerzo plicado y eI tiempo se fracture

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PEPIA. Mtodos numricos Para Ingenieria Civil MecSnica_ 29/11/2018 I_/Se realize un experimento definir 12 relacin entre eI esfuerzo plicado y eI tiempo se fracture cierto tipo de acero inoxidable. Se plican ocho valors distintos de esfuerzo, y Ios datos resultantes hijo: Esfeorzo aplicodo, x, kg/mrnl Tiernpo poro h 5 10 15 20 25 30 35 ao ao 30 25 18 20 22 15 Grafique Ios datos y despus desarrollar 12 ecuaci6n cle mejor ajuste (3 funciones) predecir eI tiempo de fractura para un esfUrzo plicdo de 20 kg/mrnl_ LCuSI es mejor curve ? 2./lJn avidn es seguido radar, y se toman datos segundo en coordenadas poleres e yr. 200 075 120 202 072 370 206 0.68 800 208 s 240 A ds 202, 2N y 206 segundos, usando Ias diferencias finitas centradas (correctas segundo order) mzuentre Ias expresiones vectoriales velociclad v yaceleracin a . La velocidad y aceleracion en coordenadas zoleres son: v + reee

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