Understanding Buckling | The Efficient Engineer
Understanding Buckling | The Efficient Engineer
Mar 10, 2024
efficientengineer.com
"Track Buckling" aka "Sun Kink", is caused by thermal expansion, a natural property of materials that expand when heated. As the air temperature rises, steel rails can heat up to 50°C (122°F) and much more. Since steel expands when it gets hot, and rails are often held rigidly in place, the built-up thermal stress has nowhere to go. Instead of growing longer, the track buckles laterally usually at its weakest or most flexible point. 📐 Thermal expansion (ΔL) is described by: ΔL = α × L × ΔT α –
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"Track Buckling" aka "Sun Kink", is caused by thermal expansion, a n…
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Track buckling (עיוות פסי רכבת) הוא תופעה שבה מסילות רכבת מתעקמות או מתעוותות עקב טמפרטורות גבוהות או כוחות פנימיים בתוך המסילה. גורמים לתופעה: 1. התפשטות תרמית – מסילות פלדה מתרחבות כשהן מתחממות. אם אין להן מספיק מקום להתפשט, הן עלולות להתעקם או לזוז ממקומן. 2. לחצים פנימיים במסילה – במסילות מולחמות רציפות (CWR), החום יוצר לחצים פנימיים גדולים שעלולים להוביל להתעקמות. 3. ביסוס לא יציב – אם האדמה מתחת למסילה אינה יציבה, היא עלולה לאפשר למסילה לזוז או להתעקם תחת עומס. 4. עומסי רכבות כבדים – משקלי
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Track buckling (עיוות פסי רכבת) הוא תופעה שבה מסילות רכבת מתעקמות או …
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