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1) A pea ilustrada na Figura 1, feita de ao SAE 4130 temperado com dureza de 365 HBN, solicitada por carga de impacto. Para

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1) A pea ilustrada na Figura 1, feita de ao SAE 4130 temperado com dureza de 365 HBN, solicitada por carga de impacto. Para determinar a sensibilidade esttica ao entalhe do material, sob efeito do concentrador de tenses, foi ensaiado um corpo de prova sob trao do mesmo material, conforme a Figura 2, com carga de impacto. A carga de ruptura do corpo de prova foi de 18kN. Determine a carga de ruptura da pea. Considerar a Tenso de Escoamento de 1130Mpa e Tenso de Ruptura de 1360. F F 150 mm 100 mm 150 mm 75 mm - 75 mm P 40 mm 60 mm Flat bar-thickness = 12 mm r 10 mm typical Figura 1 d P Omax Figura 2

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