Page 24 - คุณสมบัติของไม้ไผ่(Eng)

Modulus of elasticity (MOE) (x100 MPa) air dry green 117.90 - 86.3 58.5 114 143 223 146 141.10 115.83 301 347 326 353 370 371 332.3 357.0 197 161 177 206 190 253

Stress at proportional limit (MPa) air dry green - - 53.4 38.4 44 46.3 46.9 53.9 48.10 46.20 83.1 37.9 69.7 47.6 91.8 98.4 81.5 61.3 81.3 75.5 75.9 69 84.1 74.4

Table 5 Mechanical properties of bamboos under Project PD372/05 Rev.1 (F).

Modulus of rupture (MOR) (MPa) air dry green 115.0 - 104 85.3 99.8 73.6 113 85.3 105.60 81.40 156 116 162 131 175 182 164.3 143.0 120 106 131 130 117 117

Culm pa - bottom middle top Average bottom middle top Average all all all Source: * Forest Production Development Division (2005)

Bamboo species Hopea odorata* Dendrocalamus hamiltonii Bambusa bambos Thyrsostachys oliveri Thyrsostachys siamensis Dendrocalamus longispathus

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