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BOLT SHEAR STRESS ANALYSIS (Fallback Mock)
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Bolt Specification: M10 (Metric Coarse)
Material: Grade 8.8 Steel
Yield Strength (Sy): 640 MPa
Tensile Stress Area (At): 58.0 mm^2

Shear Load (V): 5000 N

Calculations:
1. Nominal Shear Stress (tau):
   tau = V / At = 5000 N / 58.0 mm^2 = 86.2 MPa

2. Allowable Shear Strength (Ssy):
   Ssy = 0.577 * Sy = 0.577 * 640 MPa = 369.3 MPa

3. Safety Factor (FoS):
   FoS = Ssy / tau = 369.3 MPa / 86.2 MPa = 4.28

Result: Safety Factor (4.28) is greater than 1.5. Design is SAFE.
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