A Comprehensive Method for Accurate Strain Distribution Measurement of Cell Substrate Subjected to Large Deformation

Table 2

Comparison between the proposed method and stretching equipment.

Reference strain (%)	Measured strain (%)	Relative error (%)
5	4.95 ± 0.59	1.00
10	9.97 ± 0.52	0.30
15	15.0 ± 0.58	0.00
20	19.9 ± 0.67	0.50
25	24.9 ± 0.73	0.40
30	29.8 ± 0.78	0.67
35	34.6 ± 0.85	1.14
40	39.3 ± 1.13	1.75