Testing of the search strength of compressed material at increased temperature
[ 1 ] Katedra Podstaw Konstrukcji Maszyn, Wydział Maszyn Roboczych i Transportu, Politechnika Poznańska | [ P ] employee
2011
paper
english
- biomass
- compression (densification)
- shear strength
- testing methodology
EN The purpose of this paper is to present the methodology of experimental strength testing of compressed sawdust under the effect of heat. The subject has been inspired by practical engineering experience in the design of machines for compression of natural materials classified as biomass, the example of which is wood sawdust. It is a structurally complex material and investigation of its strength properties is necessary to determine the critical values depending on the thermomechanical properties of the material. The paper presents the test facility designed for experimental testing of shear stresses in loose materials exposed to heat. Moreover, compressed sawdust was tested with the purpose to determine the relationship between the degree of compression and the applied force, the results of which are presented together with the functions illustrating how shear stresses are related to strain and normal stresses. The output of research relates to the processes involved in compression of natural waste materials with the purpose to obtain renewable sources of energy and environment-friendly fuels.
1969 - 1972
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final published version