Table 6.

Crucial coefficients of material plasticity models.

PLA15PBAT85 Material Plasticity Model	Param.	Value [-]	Σ [-]	Value [-]	R2 [-]
Cowper–Symonds $\tilde{\sigma }=\left[1+{\left({\displaystyle \frac{\dot{\epsilon }}{D}}\right)}^{{\displaystyle \frac{1}{p}}}\right]$	D p	5647 4.85	D0.95 p0.95	±432 ±0.14	0.88
Johnson–Cook simplified. $\tilde{\sigma }=\left(A+B·{\epsilon }^n\right)·\left[1+C·ln{\displaystyle \frac{\dot{\epsilon }}{\dot{{\epsilon }_{st}}}}\right]$	A B C n	19.90 17.27 0.0565 1.2601	A0.95 B0.95 C0.95 n0.95	±0.21 ±0.23 ±0.0008 ±0.0451	0.92