Examples of deformation in the following topics:
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- A change in shape due to the application of a force is a deformation.
- Even very small forces are known to cause some deformation.
- For small deformations, two important characteristics are observed.
- First, the object returns to its original shape when the force is removed—that is, the deformation is elastic for small deformations.
- Second, the size of the deformation is proportional to the force—that is, for small deformations, Hooke's law is obeyed.
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- A change in shape due to the application of a force is a deformation.
- Even very small forces are known to cause some deformation.
- For small deformations, two important characteristics are observed.
- First, the object returns to its original shape when the force is removed—that is, the deformation is elastic for small deformations.
- Second, the size of the deformation is proportional to the force—that is, for small deformations, Hooke's law is obeyed.
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- The change in shape of an object due to the application of a force is a deformation.
- Even very small forces are known to cause some deformation.
- For small deformations, two important characteristics are observed.
- First, the object returns to its original shape when the force is removed (that is, the deformation is elastic for small deformations).
- Second, the size of the deformation is proportional to the force.
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- If a force results in only deformation, with no thermal, sound, or kinetic energy, the work done is stored as elastic potential energy.
- In order to produce a deformation, work must be done.
- If the only result is deformation and no work goes into thermal, sound, or kinetic energy, then all the work is initially stored in the deformed object as some form of potential energy.
- It is possible to calculate the work done in deforming a system in order to find the energy stored.
- A graph shows the applied force versus deformation x for a system that can be described by Hooke's law .
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- Fracture is caused by a strain placed on an object such that it deforms beyond its elastic limit and breaks.
- When a strain is applied to a material it deforms elastically proportional to the force applied.
- Past that point, if more strain is added, the object may permanently deform and eventually fracture.
- This is a graph of deformation ΔL versus applied force F.
- Still greater forces permanently deform the object until it finally fractures.
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- A fluid is a substance that continually deforms (flows) under an applied shear stress.
- A fluid is a substance that continually deforms (flows) under an applied shear stress.
- a) not resisting deformation or resisting it only lightly (viscosity), and
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- The shape of an object is a description of space that the object takes up; the shape can change if the object is deformed.
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- They typically are deformable (malleable) under stress, without cleaving.
- Mechanical properties of metals include malleability and ductility, meaning the capacity for plastic deformation.
- Reversible elastic deformation in metals can be described by Hooke's Law for restoring forces, in which the stress is linearly proportional to the strain.
- Applied heat, or forces larger than the elastic limit, may cause an irreversible deformation of the object, known as plastic deformation or plasticity.
- A metal, by contrast, is more likely to be simply deformed or dented.
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- These women frequently have the deformed pelvis indicative of osteomalacia.
- Physical signs include deformities like triradiate pelvis and lordosis.
- However, those physical signs may derive from a previous osteomalacial state, since bones do not regain their original shape after they become deformed.
- Rickets is a softening of bones in children due to deficiency or impaired metabolism of vitamin D, magnesium, phosphorus, or calcium, potentially leading to fractures and deformity.
- In the absence of vitamin D, dietary calcium is not properly absorbed, resulting in hypocalcaemia, leading to skeletal and dental deformities , and neuromuscular symptoms, e.g. hyperexcitability.
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- Cleft lip and cleft palate are variations of a type of clefting congenital deformity caused by abnormal facial development during gestation.
- Cleft lip and cleft palate, which can also occur individually or together, are variations of a type of clefting congenital deformity caused by abnormal facial development during gestation .