Contrastive analysis of screw withdrawal resistance between bamboo oriented strand board and conventional particleboard
Effects of screw diameter, pilot hole diameter, and material’s anisotropy on the withdrawal resistance of bamboo oriented strand board (BOSB) has been evaluated and the results has been compared with conventional particleboard (CPB). Results indicate that the effects of screw diameter on the face withdrawal resistance in BOSB have significant differences, whereas the edge withdrawal resistance was not. In contrast, the effect of screw diameter on face and edge withdrawal resistance in CPB has been statistically significant difference. The effect of pilot hole diameter on the face and edge withdrawal resistance both in BOSB and CPB has significant difference, the withdrawal resistance decreased as related to increasing pilot hole diameter. Furthermore, the withdrawal resistance in BOSB is anisotropic, whereas the relative superiority is sorted by the face, edge and end in turn. In addition, the withdrawal resistance in BOSB was much higher than CPB in all directions.