- #1
Stefan
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Update: forgot to mention that we are solving for the stress at the point where the bolt meets the mounting plate.
What types of stresses are present on the bolted plate in this project?
In summary, the conversation is about determining the types of stresses present on a point of a project. The stress must be calculated by hand using Von Mises equations. The picture shows a diagram of the project, which includes a mounting plate, scrap metal, and a bolt. The argument is whether only normal stresses are present or if shear stresses are also present. The type of supports for the mounting plate will determine the type of analysis needed for the distributed loading. The torque of the operating motor will also be a factor in determining the stresses on the mounting plate and its supports.
Update: forgot to mention that we are solving for the stress at the point where the bolt meets the mounting plate.
- #2
JBA
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I don't really understand the torque arrows on your drawing. Other than during tightening of the bolt, the mounting plate only experiences a compressive bearing stress in the scrap metal contact area and some minor surface shearing around the perimeter of the scrap metal, both due to the bolt installation tension alone.
- #3
Tom.G
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I wonder where the force from the "Distributed Load" is counteracted; for instance is the Mounting Plate a cantilever beam, simply supported beam, a diaphragm or...?
Definitely not my area, so please ignore if irrelevant.
Definitely not my area, so please ignore if irrelevant.
- #4
JBA
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It depends upon what type of supports and where the supports for the mounting plate are located that determines the type of analysis for the distributed loading on the plate.
Since your drawing indicates a downward distributed loading and the bolt loading,apart for its installed tension, would only be a factor for upward loading on the mounting plate.
Since your drawing indicates a downward distributed loading and the bolt loading,apart for its installed tension, would only be a factor for upward loading on the mounting plate.
- #5
JBA
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Addendum:
At this point you show an isolated area of the plate that basically floating in air. What you need to do is create a drawing of the entire supporting plate will all of the motor bolting locations and all of the supports for the mounting plate. With regard to the loading, while the total weight of the motor is one load vertical downward load, the torque of the operating motor will also be a load factor for both the bolts, mounting plate and its support connections. The result of the shaft torque loading on the motor is going to be a vertical downward load on the mounting bolts, mounting plate and plate supports on one side of the motor and a vertical upward force on those items on the opposite side of the motor to resist that torque.
At this point you show an isolated area of the plate that basically floating in air. What you need to do is create a drawing of the entire supporting plate will all of the motor bolting locations and all of the supports for the mounting plate. With regard to the loading, while the total weight of the motor is one load vertical downward load, the torque of the operating motor will also be a load factor for both the bolts, mounting plate and its support connections. The result of the shaft torque loading on the motor is going to be a vertical downward load on the mounting bolts, mounting plate and plate supports on one side of the motor and a vertical upward force on those items on the opposite side of the motor to resist that torque.
FAQ: What types of stresses are present on the bolted plate in this project?
What are the different types of stress that can occur on a bolted plate?
There are typically three types of stress that can occur on a bolted plate: tensile stress, compressive stress, and shear stress. Tensile stress occurs when the material is pulled apart, compressive stress occurs when the material is pushed together, and shear stress occurs when the material is subjected to forces parallel to its surface.
How does each type of stress affect the bolted plate?
Tensile stress can cause the bolted plate to elongate or break, compressive stress can cause the plate to buckle, and shear stress can cause the plate to slide or fail along the bolted joint. It is important to consider all three types of stress when designing a bolted joint to ensure its strength and durability.
What factors can contribute to the occurrence of stress on a bolted plate?
There are several factors that can contribute to the occurrence of stress on a bolted plate, such as the applied load, the materials used, the geometry of the joint, and the torque applied to the bolts. These factors should be carefully considered during the design process to ensure the bolted joint can withstand the expected stress levels.
How can we measure the stress on a bolted plate?
Stress on a bolted plate can be measured using various techniques, such as strain gauges, load cells, or finite element analysis. These methods can provide valuable information about the distribution and magnitude of stress within the bolted joint, aiding in the design and optimization process.
What are some common techniques for reducing stress on a bolted plate?
Some common techniques for reducing stress on a bolted plate include using a larger bolt diameter, increasing the number of bolts, using a thicker plate, or adding reinforcement to the joint. It is important to carefully consider the trade-offs between strength, weight, and cost when selecting a stress reduction technique for a specific application.