Optimal experiment design and thermo-physical characterization of a plastically deformed solid

Figures & data

Figure 1. Photothermal method.

Figure 2. Experimental device.

Figure 3. Reduced sensitivity coefficients (α_z = 3.1 × 10⁻⁵m² s⁻¹; K_rz = 0.9; Bi_z = 0.01; r_s = 13 mm; e = 9 mm; r_p = 2.5 mm; r_m = 5 mm; t₀ = 10 ms).

Figure 4. Heat flux duration effect on the parameter variances for σ = 0.01T_max.

Figure 5. Sample thickness effect on the parameter variances for σ = 0.01T_max.

Figure 6. Effect of the thermocouple position on the parameter variances for σ = 0.01T_max.

Figure 7. Temperature measurement vs. 2D model with the estimated thermal parameters of a deformed Aluminum alloy.

Table 1. Results of the parameter identification.

	Deformed Aluminum alloy		Undeformed Al-alloy
	Anisotropic model	Isotropic model	Isotropic model
αz × 10^5 (m^2 s^−1)	2.31 ± 0.02	2.38 ± 0.03	2.21 ± 0.05
Biz	0.0011 ± 0.0004	0.0019 ± 0.0002	0.0028 ± 0.0004
Krz	0.91 ± 0.01	–	–
αr × 10^5 (m^2 s^−1)	2.10 ± 0.02	–	–