KASTAMONU UNIVERSITY JOURNAL OF FORESTRY FACULTY, cilt.19, sa.2, ss.225-234, 2019 (ESCI)
Aim of study: The target of this study was measuring the changes in IFD firmness and thickness values after constant-fatigue loading on the polyurethane (PUR) foams, with six different densities and two different categories, produced in Trabzon/Turkey.