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Stress is tensor,then,what is meant by tensor? (Rupasri asked)

Answer:

Tensor is a mathematical object analogous to but more general than a vector, represented by an array of components that are functions of the coordinates of a space.

Tensors are used to represent correspondences between sets of geometrical vectors.

Refer to the following links for a more detailed analysis.

http://www.grc.nasa.gov/WWW/k-12/Numbers/Math/documents/Tensors_TM2002211716.pdf

http://www.youtube.com/watch?v=HDCafA-Xjis

 
Physically, vectors are used to represent locations, velocities, accelerations, flux densities, field
quantities, etc.