LVLの低サイクル縦圧縮疲労試験(<特集>木質材料)

概要

論文の詳細を見る
To examine the low cycle fatigue properties of laminatied beech(Fague crenata Bl.), compression-compression tests are carried out at high loading levels in the direction parallel to wood grain. A test specimen has shallow notches in order to avoid the die-test piece interface fractures. The notch effect on the static distribution is analyzed by a three dimensional FEM. Upper limit load is given by assigning the increment of strain from basic stress state and load amplitude remains unchanged through the tests. Experimental results show that the critical number of cycles to fracture becomes smaller with increasing magnitudes of the strain increment, although the scatter of its values is observed to some extent. Furthermore, it is found that typical fracturing pattern is the type of a inclined straight-line originating from the root of a groove.
社団法人日本材料学会の論文
1999-03-15