How does deformation in animals happen?
Sometimes this just happens. Maybe there was a close relation between the parents. Contamination of chemical wastes have created issues - cancer patterns, etc - in humans. Something similar may have been involved. But often it simply just is one of those things.
Depending on the animal or thing you are referring to, deformation can mean many different things, such as an alteration of shape, as by pressure or stress, or an alteration of form for the worse. Overall it means the act or process of deforming. Bonsai trees/plants are a G-R-E-A-T example of purposeful deformation. Find pictures of the Bristlecone Pine Trees: they are "twisted out of shape" by the forces of nature. They are truly gnarly.
You usually say that the member fractures or fails at its ultimate stress Depending on the properties of the material, as stress increases, a typical metal will undergo elastic deformation, then a region of (nearly) constant plastic deformation, then strain hardening, a period of necking and then fracture.
Ductile deformation, also known as plastic deformation, occurs when a material accumulates strain that is not reversible. Plastic deformation takes the form of a permanent change in the size and/or shape of a rock that has passed its elastic limit. Fracture occurs when material that is accumulated strain, or deforming, finally break. This stage is termed brittle deformation. Of course, like ductile strain, brittle deformation is permanent.
First of all i guess the right question is difference between strain and deformation. Actually the strain is deformation in a material over its original length. So strain is a relative quantity while deformation is simply change in length, hence absolute and is new length minus original length. Strain= deformation(L2-L1)/original length(L1)
In an elastic deformation, the object will return to its original shape afterwards (like tapping your arm softly with a needle, without piercing the skin). In a plastic deformation the object will first undergo elastic deformation, but then undergo a deformation that changes the shape of the material. (like tapping your arm with a needle that pierces through the skin and leaves a small wound).
HI!!!! check out my answer.... The difference between the two is.... The plastic deformation will occur where pressures are relatively high and the strain rate relatively low. During plastic deformation, the materials flow and changes in shape will be permanent. While, The elastic deformation will change shape in response to a stress, then snap back into it's original shape if the stress is removed. (in other words, the strain is recoverable) IN short word...THE PLASTIC…