Research on Physical and Mechanical Properties of Moso Bamboo

With the increase of the utilization of bamboo, we must find out more in bamboo properties. According to the national standard GB/T15780 -1995, this paper analyzed the air-dried density and mechanical properties of Moso bamboo in different ages and stalk parts. The results showed that both the age and the stalk part have remarkable effects on air-dried density and mechanical properties. The effect of age is much more prominent than that of stalk part. The performance shows: upper > middle > down, which increases with the age, and reaches to the peak values at the age of 4 and show a downward trend at the age of 6. According to the tests, the optimum age of bamboo for cutting is about at 4. Moreover, there is a positive correlation between air-dried density and mechanical properties. The correlation coefficients between air-dried density and crushing strength parallel to the grain, bending strength, modulus of elasticity and tensile strength parallel to the grain are 0.917 3, 0.783 9, 0.745 8 and 0.507 4, respectively. In addition, there is a good relativity among mechanical properties, δt: δc: MOR: MOE = 2.79: 1.00: 2.40: 0.15.