Different Types of Hysteresis in Various Materials

In summary, the conversation discusses a college assignment brief that requires a report on the differences in elastic, magnetic, and electric hysteresis experienced by steel, polyurethane, and concrete materials. The scenario involves a mechanical engineer working for a marine construction organization and the use of X80/L555 grade steel and aliphatic polyurethane coating in structures for the deep sea petrochemical industry. The pipes used in these structures are often embedded in precast concrete blocks. The student is seeking help and resources for the assignment.
  • #1
dghnhahah
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Thread moved from the technical forums to the schoolwork forums
Summary:: My college assignment brief;
Write a report in which you examine and describe the differences in the elastic, magnetic, and electric hysteresis experienced by the steel, polyurethane, and concrete materials respectively.

The scenario:
You work as a mechanical engineering for a marine construction organisation, that specialises in designing, crafting, and testing various structures to serve the deep sea petrochemical industry.
Common parts of the structures fabricated by the organisation are metal pipes, coated in a polymer. A common choice of metal for these structures is X80/L555 grade steel and the polymer is an aliphatic polyurethane coating. The pipes are often embedded into blocks of precast concrete.

Please help, if you could link to a site or anything. Can't find anything relevant anywhere thanks
 
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  • #2
dghnhahah said:
Summary:: My college assignment brief;
Write a report in which you examine and describe the differences in the elastic, magnetic, and electric hysteresis experienced by the steel, polyurethane, and concrete materials respectively.

The scenario:
You work as a mechanical engineering for a marine construction organisation, that specialises in designing, crafting, and testing various structures to serve the deep sea petrochemical industry.
Common parts of the structures fabricated by the organisation are metal pipes, coated in a polymer. A common choice of metal for these structures is X80/L555 grade steel and the polymer is an aliphatic polyurethane coating. The pipes are often embedded into blocks of precast concrete.

Please help, if you could link to a site or anything. Can't find anything relevant anywhere thanks
Welcome to PF.

We are not allowed to help you until you show significant effort. Please post links to the reading you have been doing so far, so that we can see what is confusing you. Google is your friend, especially when you learn to use extra search terms to refine your searches... :wink:
 

What is hysteresis?

Hysteresis is a phenomenon in which the response of a material to a changing external stimulus lags behind the stimulus itself. It is commonly observed in materials such as ferromagnetic substances, shape memory alloys, and viscoelastic materials.

What are the different types of hysteresis?

There are three main types of hysteresis: magnetic hysteresis, mechanical hysteresis, and electrical hysteresis. Magnetic hysteresis is observed in materials with magnetic properties, mechanical hysteresis is seen in materials that exhibit shape memory or viscoelastic behavior, and electrical hysteresis is present in materials with electrical properties.

What causes hysteresis in materials?

The underlying cause of hysteresis in materials is the presence of energy barriers that prevent the material from responding immediately to a changing stimulus. These barriers can be due to factors such as internal friction, domain wall motion, or phase transitions.

How does hysteresis affect material properties?

Hysteresis can have a significant impact on the properties of a material. For example, in ferromagnetic materials, hysteresis can affect the magnetic properties, such as coercivity and remanence. In shape memory alloys, hysteresis can affect the material's ability to return to its original shape after being deformed.

Can hysteresis be controlled or eliminated?

In some cases, hysteresis can be controlled or reduced by adjusting external factors such as temperature, stress, or magnetic field strength. However, in many materials, hysteresis is an inherent property and cannot be completely eliminated.

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