SIFAT MEKANIKA KAYU KEMIRI (Aleurites mollucana Willd) ASAL SULAWESI TENGAH BERDASARKAN ARAH AKSIAL
Abstract: Until present day,
using wood species is extremely limited while there are thousands of ignorance
species. A lot of research results indicated that woods of lesser known species
propose some very good properties as raw materials of wood industry where one
of them is candlenut wood. The objective of the research was to know the
mechanical properties of the wood referring its axial position (base, middle
and top of the trunk). The mechanical properties consist of the comprehensive
strength parallel to the grain, modulus of rapture (MOR) and modulus of
elasticity (MOE). The benefit of the research is as an useful information for
Perhutani in industrial processing of the candlenut wood. The research used a
candlenut tree with 39 cm of diameter and 20 m of hight, than 10 years old
originating from Ranteleda village, Palolo sub district, Sigi district.
Establishment of examined sample used Germani Standard (DIN). By using
Completely Randomized Design as a method of experimental design, the research
decided the differences on the axial positions (base, middle, and top) as the
treatments. The results show the values of the comprehensive strength parallel
to the grain are 27,96 N/mm2, 19,51 N/mm2, and 17,51 N/mm2. MOE are 4666,01
N/mm2, 4616,19 N/mm2, and 4295,83 N/mm2. Meanwhile MOR are 65,59 N/mm2, 64,69
N/mm2, 59,40 N/mm2. The axial positions don’t significantly influence the
mechanical properties: the comprehensive strength parallel to the grain,
modulus of rapture, and modulus of elasticity
Keywords: strength parallel to
the grain, modulus of rapture (MOR) and modulus of elasticity (MOE), candlenut
Penulis: Nurmala Sari, Erniwati,
Abdul Hapid
Kode Jurnal: jpkehutanandd150179