cE
Declares the `cE` material property for Lithium niobate coefficient set (Ogi et al., 2002) with release value `[["199500000000[Pa]","55270000000[Pa]","67670000000[Pa]","8700000000[Pa]","0[Pa]","0[Pa]"],["55270000000[Pa]","199500000000[Pa]","67670000000[Pa]","-8700000000[Pa]","0[Pa]","0[Pa]"],["67670000000[Pa]","67670000000[Pa]","235200000000[Pa]","0[Pa]","0[Pa]","0[Pa]"],["8700000000[Pa]","-8700000000[Pa]","0[Pa]","59480000000[Pa]","0[Pa]","0[Pa]"],["0[Pa]","0[Pa]","0[Pa]","0[Pa]","59480000000[Pa]","8700000000[Pa]"],["0[Pa]","0[Pa]","0[Pa]","0[Pa]","8700000000[Pa]","72100000000[Pa]"]]`.
Reference contract
| Field | Value | Description |
|---|---|---|
| value | [["199500000000[Pa]","55270000000[Pa]","67670000000[Pa]","8700000000[Pa]","0[Pa]","0[Pa]"],["55270000000[Pa]","199500000000[Pa]","67670000000[Pa]","-8700000000[Pa]","0[Pa]","0[Pa]"],["67670000000[Pa]","67670000000[Pa]","235200000000[Pa]","0[Pa]","0[Pa]","0[Pa]"],["8700000000[Pa]","-8700000000[Pa]","0[Pa]","59480000000[Pa]","0[Pa]","0[Pa]"],["0[Pa]","0[Pa]","0[Pa]","0[Pa]","59480000000[Pa]","8700000000[Pa]"],["0[Pa]","0[Pa]","0[Pa]","0[Pa]","8700000000[Pa]","72100000000[Pa]"]] | Exact source-backed release expression or tensor. |
| model | {"convention":"Paper equations (1), (4), and Table III; Voigt order xx, yy, zz, yz, xz, xy in the paper's x1, x2, x3 crystal axes.","evidence":{"formula":"Expand the seven printed entries using the paper's 3m matrix; GPa * 1e9 = Pa.","locator":"PDF pages 1 and 5, equation (1) and Table III, Present column","method":"converted","note":"C66 uses the source-reported 72.10 GPa. It is not recomputed from (C11-C12)/2 because the printed independent values are rounded.","sourceIds":["ogi-2002-lithium-niobate"]},"kind":"matrix","shape":[6,6],"unit":"Pa","values":[["199500000000[Pa]","55270000000[Pa]","67670000000[Pa]","8700000000[Pa]","0[Pa]","0[Pa]"],["55270000000[Pa]","199500000000[Pa]","67670000000[Pa]","-8700000000[Pa]","0[Pa]","0[Pa]"],["67670000000[Pa]","67670000000[Pa]","235200000000[Pa]","0[Pa]","0[Pa]","0[Pa]"],["8700000000[Pa]","-8700000000[Pa]","0[Pa]","59480000000[Pa]","0[Pa]","0[Pa]"],["0[Pa]","0[Pa]","0[Pa]","0[Pa]","59480000000[Pa]","8700000000[Pa]"],["0[Pa]","0[Pa]","0[Pa]","0[Pa]","8700000000[Pa]","72100000000[Pa]"]]} | — |
| shape | 6x6 | — |
| required | true | — |
Declares the cE material property for Lithium niobate coefficient set (Ogi et al., 2002) with release value [["199500000000[Pa]","55270000000[Pa]","67670000000[Pa]","8700000000[Pa]","0[Pa]","0[Pa]"],["55270000000[Pa]","199500000000[Pa]","67670000000[Pa]","-8700000000[Pa]","0[Pa]","0[Pa]"],["67670000000[Pa]","67670000000[Pa]","235200000000[Pa]","0[Pa]","0[Pa]","0[Pa]"],["8700000000[Pa]","-8700000000[Pa]","0[Pa]","59480000000[Pa]","0[Pa]","0[Pa]"],["0[Pa]","0[Pa]","0[Pa]","0[Pa]","59480000000[Pa]","8700000000[Pa]"],["0[Pa]","0[Pa]","0[Pa]","0[Pa]","8700000000[Pa]","72100000000[Pa]"]].
The property remains tied to this material's declared sources, conditions, model assumptions, units, and shape metadata; it is not cross-spliced from another definition.