Symbols and Acronyms	Explanations
FPUF	Flexible polyurethane foam
EPS	Expanded polystyrene foam
FE-P	FPUF-EPS parallel combination material
FE-S	FPUF-EPS series combination material
FE0	Neat EPS material (Thickness of EPS is 50 mm)
FE0.2-P	FPUF-EPS parallel combination material (Thickness of FPUF is 10 mm, EPS is 40 mm)
FE0.2-S	FPUF-EPS series combination material (Thickness of FPUF is 10 mm, EPS is 40 mm)
FE0.4-P	FPUF-EPS parallel combination material (Thickness of FPUF is 20 mm, EPS is 30 mm)
FE0.4-S	FPUF-EPS series combination material (Thickness of FPUF is 20 mm, EPS is 30 mm)
FE0.5-P	FPUF-EPS parallel combination material (Thickness of FPUF is 25 mm, EPS is 25 mm)
FE0.5-S	FPUF-EPS series combination material (Thickness of FPUF is 25 mm, EPS is 25 mm)
FE0.6-P	FPUF-EPS parallel combination material (Thickness of FPUF is 30 mm, EPS is 20 mm)
FE0.6-S	FPUF-EPS series combination material (Thickness of FPUF is 30 mm, EPS is 20 mm)
FE0.8-P	FPUF-EPS parallel combination material (Thickness of FPUF is 40 mm, EPS is 10 mm)
FE0.8-S	FPUF-EPS series combination material (Thickness of FPUF is 40 mm, EPS is 10 mm)
FE1	Neat FPUF material (Thickness of FPUF is 50 mm)