How many elastic moduli the most general material have

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Reference no: EM131383637

In crystalline materials, the ordinary elastic moduli are replaced by cijkl, a fourth order tensor with eighty one elements. It appears that the most general material has eighty one elastic moduli, but this number is reduced because cijkl has the following symmetries:

(i) C_jikl = C_ijkl

(ii) C_ijlk = C_ijkl

(iii) C_klij= C_ijkl

How many elastic moduli does the most general material actually have?

Reference no: EM131383637

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