Information regarding solids of mechanis

[chem1979]

Dear forum members,
In mechanics of materials (solid) there are term called J1 and J2 and J3 called invarints of deviatoric stress tensor.
I need the implication or significance of J1 and J2 in material.A general description like its importance
implication or significance.The definition of each term is is attached.Thanks in advance.

 

[arunmrao]

You might find this useful

Advanced Mechanics of Solids By L S Srinath

http://books.google.com/books?hl=en...l7K-q&sig=2yAZVO7esGshAnJl-CfTl3w7Olo#PPP1,M1

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[CoryPad]

Is this student work?

Regards,

Cory

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