The following hypothesis was tested: Axial forces and bending moments in the mid-diaphysis of rabbit tibia differ from other experimental animals or indirectly calculated data. The objective of the present study was to measure axial forces, bending moments, and bending axis directly in the rabbit tibia in vivo. The rabbit is an often used fracture model, but biomechanical data are very rare. Minimum steel area = 0.Different animal models are used as fracture models in orthopaedic research prior to implant use in humans, although biomechanical forces can differ to a great extend between species due to variable anatomic conditions, particularly with regard to the gait. Values of σst for different grades of steel ![]() In order to design a water tight tank, M20 grade concrete is generally used. Permissible tensile stress (σct) for different grades of concrete are as follows: Σct = permissible tensile stress in concrete Equivalent area of section Ht = d x h x D/2 - equation 3 Step two:Ĭalculating the thickness of the wall of circular tank Substituting equation 2 in equation 1, we get The formula for calculating hoop tension is, The wall of the tank is designed for hoop tension. The base of the circular water tank has a flexible joint. Some important theory for Circular Water Tanks Radial stress – It is perpendicular to the symmetry axis but is coplanar.Axial stress – parallel to the axis of the cylinder.Hoop stress or circumferential stress – it is in tangential direction.There are three different patterns of cylinder stress namely The stress distribution remains unchanged if the object is rotated about a fixed axis. ![]() It is distributed with rotational symmetry. Cylinder stress is exerted on the circular water tank. ![]() Circular water tanks have the properties of the cylinder.
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