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Shear stress is stress from forces parallel to a surface, causing internal sliding. It's critical for joint design and fastener selection.
공식
Calculate: τ = V/A where V is shear force and A is area
- V
- V value — Variable used in the calculation
- A
- A value — Variable used in the calculation
단계별 가이드
- 1Calculate: τ = V/A where V is shear force and A is area
- 2For beams: τ = 1.5V/A (rectangular cross-section)
- 3Results show stress intensity and safety margins
풀어진 예시
입력
V = 50 kN, A = 0.01 m² (100×100 mm)
결과
τ = 5 MPa (low for steel)
Safe for typical steel
피해야 할 일반적인 실수
- ✕Using average stress instead of accounting for concentration
- ✕Neglecting shear in fastener design
자주 묻는 질문
How is shear stress different from normal stress?
Normal stress acts perpendicular to surface, shear acts parallel. Materials handle shear differently.
Where is shear stress highest in a beam?
Maximum shear occurs at the supports; minimum (zero) at points of zero shear force.
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