Publicación:
EFFECT OF THERMO-HYGROMECHANICAL BEHAVIOUR AT MACROSCALE OF WOOD UNDER COMPRESSION PERPENDICULAR TO THE GRAIN IN NANOMECHANICAL PROPERTIES OF CELLULAR STRUCTURE

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dc.creatorWILLIAM ARNOLDO GACITÚA ESCOBAR
dc.creatorCECILIA DEL CARMEN BUSTOS ÁVILA
dc.date2013
dc.date.accessioned2025-01-10T14:37:29Z
dc.date.available2025-01-10T14:37:29Z
dc.date.issued2013
dc.description.abstractTHE OBJECTIVE OF THIS STUDY WAS TO EVALUATE AND CORRELATE AT MACROSCALE THE THERMO-HYGROMECHANICAL EFFECT OF ON THE NANOMECHANICAL PROPERTIES OF PINUS RADIATA D. DON AND EUCALYPTUS NITENS(DEANE & MAIDEN)EVALUATED IN THE S2 LAYER OF THE CELL WALL AND IN THE MIDDLE LAMELLA OF SPECIMENS UNDER COMPRESSION PERPENDICULAR TO GRAIN AND UNDER CYCLIC ENVIRONMENTAL CONDITIONS. AT MACROSCALE, 4 STRESSLAMINATED DECK SPECIMENS WITHOUT PRESERVATIVE TREATMENT WERE STUDIED FOR BOTH SPECIES AND 4 DECK SPECIMENS OF RADIATA PINE TREATED WITH CREOSOTE. THE NANOMECHANICAL PROPERTIES OF THE CELLULAR STRUCTURE WERE DETERMINED USING NANOINDENTATIONS. THE RESULTS SHOWED THAT THE THERMO-HYGROMECHANICAL EFFECT AT MACROSCALE INDUCED A SIGNIFICANT INCREASE OF ELASTIC MODULUS AND HARDNESS OF THE CELLULAR STRUCTURE DURING THE SUMMER SEASON AND DURING THE SECOND ENVIRONMENTAL CYCLE, WITH RESPECT TO THE WINTER SEASON AND THE FIRST CYCLE. ON THE OTHER HAND, IT WAS SHOWN THAT THE APPLICATION OF LONG-TERM COMPRESSIVE LOADS LEAD TO A SIGNIFICANT DECREASE OF THE ELASTIC MODULUS AND HARDNESS OF THE CELLULAR STRUCTURE OF WOOD AND AN INCREASE IN THE RELAXATION FACTOR, COMPARED TO THE PIECES SUBMITTED TO FREE DEFORMATION.
dc.formatapplication/pdf
dc.identifier.doi10.4067/S0718-221X2013005000017
dc.identifier.issn0717-3644
dc.identifier.issn0718-221X
dc.identifier.urihttps://repositorio.ubiobio.cl/handle/123456789/8245
dc.languagespa
dc.publisherMADERAS: CIENCIA Y TECNOLOGIA
dc.relation.uri10.4067/S0718-221X2013005000017
dc.rightsPUBLICADA
dc.subjectSUMMER SEASON
dc.subjectRELAXATION FACTOR
dc.subjectPHYSICS
dc.subjectMINERALOGY
dc.subjectMIDDLE LAMELLA
dc.subjectHUMANITIES
dc.titleEFFECT OF THERMO-HYGROMECHANICAL BEHAVIOUR AT MACROSCALE OF WOOD UNDER COMPRESSION PERPENDICULAR TO THE GRAIN IN NANOMECHANICAL PROPERTIES OF CELLULAR STRUCTURE
dc.typeARTÍCULO
dspace.entity.typePublication
ubb.EstadoPUBLICADA
ubb.Otra ReparticionDEPARTAMENTO DE INGENIERIA EN MADERAS
ubb.Otra ReparticionDEPARTAMENTO DE INGENIERIA EN MADERAS
ubb.SedeCONCEPCIÓN
ubb.SedeCONCEPCIÓN
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