The Effect Of Temperature On Ultimate Bending Load And Modulus Of Elasticity Of Bangkirai Wood Beam
| Main Author: | Perpustakaan UGM, i-lib |
|---|---|
| Format: | Article NonPeerReviewed |
| Terbitan: |
[Yogyakarta] : Lembaga Penelitian UGM
, 2002
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| Subjects: | |
| Online Access: |
https://repository.ugm.ac.id/21996/ http://i-lib.ugm.ac.id/jurnal/download.php?dataId=4876 |
Daftar Isi:
- ABSTRAK Wood is classified as a combustible material, because most wood contains cellulose, hemicellulose, and lignin. The increasing of temperature on wood structure will cause some disadvantages such as: the color of wood becomes darker and some parts of wood become char. Furthermore, the increasing of temperature will decrease the bending strength and the durability of wood as a structural material. In this research, the effect of some high temperatures on wood was examined, namely 300°C and 400°C. These high temperatures were maintained for 30 minutes. The species of wood that was examined in this research was Bangkirai wood. Nine beam specimens with cross-section of 60 mm x 100 mm and length of 1500 mm were examined. Three beams were burned at 300°C, three beams were burned at 400°C, and the last three beams were not burned (comparison specimens). Some effects that were observed were crack, weight-lost, bending load, and modulus of elasticity of specimens. The result showed that ultimate bending load of beam specimen which resisted high temperature was lower than that of beam specimen which resisted room-temperature. The degradation of ultimate bending load of beam specimens happened linearly. The failure of beam specimen that resisted high temperature happened at smaller deflection, and at smaller ultimate bending load than that of beam specimen which did not resist high temperature. The modulus of elasticity of the unburned-part of beam specimen that resisted high temperature showed a significant increase. Keywords: ultimate bending load, modulus of elasticity