Bending Stress ची गणना कशी करावी
Bending Stress म्हणजे काय?
Bending stress is normal stress from moment loading, the primary stress in beams. It varies linearly across the section, maximum at outer fibers.
सूत्र
Calculate: σ = M×c/I where M is moment, c is distance from neutral axis, I is moment of inertia
- M
- I/c) — I/c)
- I
- I value — Variable used in the calculation
चरण-दर-चरण मार्गदर्शक
- 1Calculate: σ = M×c/I where M is moment, c is distance from neutral axis, I is moment of inertia
- 2Or: σ = M/S where S is section modulus (S = I/c)
- 3Results show stress distribution
Worked Examples
इनपुट
M = 50 kN·m, I = 1×10⁹ mm⁴, c = 200 mm
परिणाम
σ = 10 MPa at extreme fiber
Safe stress level
Common Mistakes to Avoid
- ✕Using average stress instead of maximum stress
- ✕Forgetting compression and tension can develop simultaneously
Frequently Asked Questions
Why does stress vary across the beam?
Outer fibers experience maximum stretch/compression; inner material near neutral axis experiences less.
How is section modulus useful?
S directly gives maximum stress: σ_max = M/S, simpler than calculating I and c separately.
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