This SAE Recommended Practice describes a laboratory test procedure for evaluating the loss of thickness and the amount of structural breakdown of slab polyurethane foam seating materials. A test specimen is measured for thickness under a specified load and subsequently subjected simultaneously to compressive and shear deformation in a controlled atmosphere. This is accomplished by subjecting the foam to a rolling shearing action under a constant load for a specified number of cycles. Specimen thickness under a constant load is obtained after a 1hr recovery period following dynamic fatigue to determine loss in foam thickness.
Dynamic Flex Fatigue Test for Slab Polyurethane Foam
01.06.1998
Aufsatz (Konferenz)
Englisch
DYNAMIC FLEX FATIGUE TEST FOR SLAB POLYURETHANE FOAM
SAE Technical Papers | 1969
POLYURETHANE SLAB FOAM FORMING COMPOSITION, POLYURETHANE SLAB FOAM, AND PRODUCTION PROCESS THEREFOR
Europäisches Patentamt | 2019
|Dynamic fatigue of moulded polyurethane foam car seats
Kraftfahrwesen | 1983
|Car over operation for flex-foam
Tema Archiv | 1974