Using Design of Experiments Methods for Assessing Peak Contact Pressure to Material Properties of Soft Tissue in Human Knee

Table 3

Considered terms, effects, and alias structure in 1/8 fractional design.

Term	Effect	Alias structure (up to order 3)
𝐸1	−0.0126	𝐸1+𝐸2,3∗𝑉12∗𝐺12+𝐸2,3∗𝐾∗𝐸+𝑉12∗𝑉23∗𝐸+𝑉23∗𝐺12∗𝐾
𝐸2,3	−0.0496	𝐸2,3+𝐸1∗𝑉12∗𝐺12+𝐸1∗𝐾∗𝐸+𝑉12∗𝑉23∗𝐾+𝑉23∗𝐺12∗𝐸
𝑉12	−0.0129	𝑉12+𝐸1∗𝐸2,3∗𝐺12+𝐸1∗𝑉23∗𝐸+𝐸2,3∗𝑉23∗𝐾+𝐺12∗𝐾∗𝐸
𝑉23	−0.0121	𝑉23+𝐸1∗𝑉12∗𝐸+𝐸1∗𝐺12∗𝐾+𝐸2,3∗𝑉12∗𝐾+𝐸2,3∗𝐺12∗𝐸
𝐺12	0.0091	𝐺12+𝐸1∗𝐸2,3∗𝑉12+𝐸1∗𝑉23∗𝐾+𝐸2,3∗𝑉23∗𝐸+𝑉12∗𝐾∗𝐸
K	0.0131	𝐾+𝐸1∗𝐸2,3∗𝐸+𝐸1∗𝑉23∗𝐺12+𝐸2,3∗𝑉12∗𝑉23+𝑉12∗𝐺12∗𝐸
E	−1.1049	𝐸+𝐸1∗𝐸2,3∗𝐾+𝐸1∗𝑉12∗𝑉23+𝐸2,3∗𝑉23∗𝐺12+𝑉12∗𝐺12∗𝐾
𝐸1∗𝐸2,3	−0.0124	𝐸1∗𝐸2,3+𝑉12∗𝐺12+𝐾∗𝐸
𝐸1∗𝑉12	0.0129	𝐸1∗𝑉12+𝐸2,3∗𝐺12+𝑉23∗𝐸
𝐸1∗𝑉23	0.0126	𝐸1∗𝑉23+𝑉12∗𝐸+𝐺12∗𝐾
𝐸1∗𝐺12	−0.0126	𝐸1∗𝐺12+𝐸2,3∗𝑉12+𝑉23∗𝐾
𝐄1∗𝐊	0.0714	𝐄𝟏∗𝐊+𝐄𝟐,𝟑∗𝐄+𝐕𝟐𝟑∗𝐆𝟏𝟐
𝐸1∗𝐸	0.0169	𝐸1∗𝐸+𝐸2,3∗𝐾+𝑉12∗𝑉23
𝐸2,3∗𝑉23	−0.0069	𝐸2,3∗𝑉23+𝑉12∗𝐾+𝐺12∗𝐸
𝐸1∗𝐸2,3∗𝑉23	0.0129	𝐸1∗𝐸2,3∗𝑉23+𝐸1∗𝑉12∗𝐾+𝐸1∗𝐺12∗𝐸+𝐸2,3∗𝑉12∗𝐸+𝐸2,3∗𝐺12∗𝐾+𝑉12∗𝑉23∗𝐺12+𝑉23∗𝐾∗𝐸

The bold item shows the most important term.