Tag: Stress
-
A fillet weld is a type of weld that is used to join two metallic components, typically at right angles to each other, forming an L shape. The weld is triangular in shape and may have a concave, flat or convex surface depending on the welder’s technique. It is one of the most common types…
-
Stress (N/mm^2 or MPa) can be defined as the internal resistance of a structure or body when an external force is applied. Therefore, stress is calculated as the force applied (N) divided by the area (mm^2) over which the force is distributed. There are five distinct categories of stress: Similar to accumulating forces, stresses can…
-
In-plane loading on a bolt occurs when forces are applied parallel to the plane in which the bolts lie. This contrasts with out-of-plane loading, where the forces are applied perpendicular to this plane. As a result of this, in the case of in-plane loading, the bolting group does not experience any bending loads. In-plane rotation of…
-
A flanged bolt coupling is a mechanical device used to connect two shafts together at their ends for the purpose of transmitting power. When connecting shafts using a flanged bolt coupling (like the example shown below) the torque load across the connected shafts generates a shear force in the bolts. In this application, it can…
-
In How to Calculate Lug Stresses we spoke about lugs being a great way to transmit mechanical load when used with a clevis pin. The following equations will allow us to size the correct size pin for this application. Pin Bending Stress As a conservative approach, the load on the pin can be assumed as…
-
Essentially, a lug is just a plate with a hole in it! But when used with a clevis pin lugs are a useful way to transmit mechanical load through mechanical components with quick and easy installation. There are several failure modes to consider when it comes to sizing a lug. The following simplified method will…
-
For the following calculations we will only consider plates of uniform thickness and with a uniformly distributed load over the entire surface. This will help us define minimum thickness’ for components such as pressure vessels or piston housings. Simply Supported The maximum bending stress of a simply supported plate can be calculated by: Stress at centre of plate a=plate…
-
For the following calculations we will only consider plates of uniform thickness and with a uniformly distributed load over the entire surface. This will help us define minimum thickness’ for components such as pressure vessels or piston housings. For the purpose of sizing calculations we can assume that for a bolted junction a simply supported equation is appropriate. For…
-
Learn about cylindrical stress in pressurised components, including hoop and longitudinal stress calculations, with important safety considerations for real-world applications.
-
An out-of-plane load applied to a bracket will cause a simultaneous tensile and shear load to be applied to the bolts. The following equations will help size fasteners for respective load cases. Minimum edge distance for bolt holes should be 1.25D minimum Tensile force in each bolt Increasing Lx or decreasing Lz will result in…