What is fatigue stress? The failure of a material due to the application o

تنش خستگی چیست؟ به شکست ماده در اثر اعمال نیروهای متناوب کمتر از استحکام نهایی و اغلب کمتر از حد تسلیم، خستگی گفته می‌شود خستگی مواد وقتی اتفاق می‌افتد که ماده تحت تنش‌های تکراری یا نوسانی قرار گیرد که منجر به شکست ناگهانی قطعه می‌گردد دلیل اصلی خطرناک بودن شکست خستگی این است که بدون آگاهی قبلی و قابل رویت بودن اتفاق می‌افتد خستگی علت شکست زودهنگام بیشتر قطعه‌های صنعتی است خستگی به‌طور معمول همراه با جوانه‌زنی ترک در سطح قطعه یا نواحی تمرکز تنش و اشاعهٔ آن در ناحیهٔ تحت تنش بیشینه است What is fatigue stress? The failure of a material due to the application of alternating forces lower than the ultimate strength and often lower than the yield point is called fatigue Material fatigue occurs when the material is subjected to repeated or fluctuating stresses that lead to sudden failure of the part The main reason fatigue failure is so dangerous is that it happens without prior knowledge and visibility Fatigue is the cause of premature failure of most industrial components Fatigue is usually associated with crack What is fatigue stress? The failure of a material due to the application of alternating forces lower than the ultimate strength and often lower than the yield point is called fatigue Material fatigue occurs when the material is subjected to repeated or fluctuating stresses that lead to sudden failure of the part The main reason fatigue failure is so dangerous is that it happens without prior knowledge and visibility Fatigue is the cause of premature failure of most industrial components Fatigue is usually associated with crack germination on the surface of the part or areas of stress concentration and its propagation in the area under maximum stress on the surface of the part or areas of stress concentration and its propagation in the area under maximum stress