Question about elasticity to help my understanding

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In summary, the conversation discussed elasticity and its formula (∆p/∆v) for pressure and volume change. It was noted that this formula may seem strange compared to the everyday use of the term "elastic." It was also questioned if a piece of wood can be considered very elastic, even under large pressure. The concept of compressibility was also mentioned as a more suitable term. The full formula for linear isotropic elasticity requires two physical constants, with the bulk modulus (K) being explained using ΔP/ΔV. It was noted that there are multiple constants that can be used to explain things uniquely. However, for elastic materials, forces must be removed for them to return to their original size and shape. It was also
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Hello, today we learned about elasticity, whose formula was the change of pressure over the volume change (∆p/∆v), which seemed very weird compared to the use of the adjective elastic daily, my question is can we say that a piece of wood is very elastic? because even applying a large pressure will not change the volume that much.
hoping for a replay, and thanks.
 
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I agree it seems very odd. The reciprocal of elasticity is compressibility, which seems to suit the purpose better.
 
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What is the full formula?
Linear isotropic elasticity requires two physical constants. One of them, the bulk modulus K, is explained with ΔP/ΔV. In the literature, you will find more than 2 constants, but any two of them can be used to explain things uniquely. There are formulas to convert between them.
An elastic material returns to its original size and shape when applied forces are removed. Large enough forces can cause inelastic behavior.
Wood is heterogenous and anisotropic, so linear isotropic elasticity can only be used in certain situations. There are more general forms of elasticity that can be used for more general cases.
 
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FAQ: Question about elasticity to help my understanding

What is elasticity?

Elasticity is the measure of how responsive a material or system is to changes in external forces. In other words, it is the ability of a material or system to return to its original shape or size after being stretched or compressed.

What are the factors that affect elasticity?

The factors that affect elasticity include the material's composition, temperature, and the force applied to it. In addition, the structure and arrangement of molecules within the material also play a role in its elasticity.

How is elasticity measured?

Elasticity is typically measured by calculating the ratio of the change in length or size of a material to the original length or size. This ratio is known as the elastic modulus or Young's modulus and is expressed in units of pressure, such as Pascals or pounds per square inch.

What is the difference between elastic and inelastic materials?

Elastic materials can return to their original shape and size after being deformed, while inelastic materials cannot. Inelastic materials may experience permanent changes in shape or size when subjected to external forces.

How is elasticity used in science and technology?

Elasticity is an important concept in various fields of science and technology, including engineering, materials science, and physics. It is used to design and test materials for various applications, such as building structures, medical devices, and electronic components. It also plays a role in understanding the behavior of fluids, gases, and other substances under different conditions.

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