Journal of Materials Science: Materials in Engineering

Table 2 Maximum and RMS errors for each polynomial approximation for the displacement components in the x₁ direction

From: A novel to perform a thermoelastic analysis using digital image correlation and the boundary element method

Line	Biquadratic		Bicubic		Biquartic
Line	Max.	RMS	Max.	RMS	Max.	RMS
(a)	0.0035	0.0019	0.0033	0.0018	0.0036	0.0020
(b)	0.0022	0.0021	0.0022	0.0021	0.0024	0.0022
(c)	0.0034	0.0027	0.0036	0.0027	0.0033	0.0028

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