4. shear test
Post on 22-Jan-2015
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- 1.
- SHEAR TEST
- Normal stress(tensile and compressive) acts in a directionperpendicularto the surface on which it acts.It is produced by a force whose line of action is perpendicular to the surface on which the stress is produced.
2.
- Shear stressacts in a directionparallelto the surface on which it acts.It is produced by a force whose line of action is parallel to the surface on which the stress is produced.
3. T T Tension -pulling apart V V Shear -sliding past 4. Example: Shearing Posts 5. 6. 7. 8.
- Example:Nail through boards
Shear Plane V/5 V/5 V V Shear Plane 9.
- v =V
A v= shear stress (psi) V = shear force (lb) A= cross-sectional areaparallel to the force. 10.
- Example: Find the shear stress in the 1 diameter bolt shown.
1 diameter bolt 4,000 lbSteel Plates 4,000 lb Shear Plane 11.
- v =V
- A
- V = 4,000 lb
- A = d 2=(1) 2= .785 in 2
- 4 4
- v=4,000 lb= 5,096 psi
- .785 in 2
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