Final equations provided by RSM for prediction of SMD (d32) for an LPSPC.
| Response/d32 (mm) | Correlation | Equation |
|---|---|---|
| d 32 for horizontal section | d 32 = 2.4448 + 0.0327X1 − 3.5472X2 − 0.1802X3 + 0.4312X4 − 0.0159X1X2 + 0.0009X3 + 0.0161X1X4 + 0.5348X2X3 − 0.6169X2X4 + 0.5418X3X4 − 0.0001X12 + 1.6196X22 − 0.2484X32 − 0.2065X42 | (8) |
| d 32 for vertical section | d 32 = 0.5308 + 0.1169X1 + 0.0709X2 + 0.5073X3 + 0.6951X4 − 0.0236X1X2 − 0.0022X1X3 − 0.0127X1X4 − 0.2479X2X3 − 0.4094X4 − 0.7147X3X4 − 0.0009X12 − 0.0944X22 + 0.0595X32 + 0.5362X42 | (9) |