Mechanical Properties of Wood
木材的力学性质

木材流变学rheology of wood

弹性elasticity
塑性plasticity
弹性模量modulus of elasticity

蠕变creep
蠕变恢复creep recovery

应变strain
应力stress
应力—应变曲线stress-strain curve
分应力stress component
分应变strain component
应力松驰stress relaxation
松弛失效failure by
relaxation

疲劳fatigue
刚性模量modulus of rigidity
变形deformation
载荷loading

各向异性anisotropy
正交对称性rhombic symmetry
弹性形变elastic deformation
弹性常数elastic constant
木材弹性异向性the anisotropic elasticity of wood
对称轴axis of symmetry

柔度compliance
泊松比Poisson’s ratio
压缩系数compressibility
体积模量bulk modulus
理想弹性变形ideal elastic deformation
粘滞流动形变viscous flow deformation
木材硬度hardness of wood
屈服点yield
point

拉伸tension
压缩compression
弯曲bending
木材冲击韧性toughness of wood
木材抗劈强度cleavage strength of wood
木材抗弯强度bending strength of wood
木材静曲弹性模量the modulus of elasticity in static bending of wood
木材顺纹抗剪强度shearing strength parallel to grain of wood
木材顺纹抗拉强度tensile strength parallel to grain of wood
木材顺纹抗压强度compressive strength parallel to grain of wood
木材横纹压力compression perpendicular to grain of wood
木材横纹抗压弹性模量modulus of elasticity in compression perpendicular to grain of wood

静力试验测定determination by static test
动态试验测定determination by dynamic test

木材断裂力学Fracture Mechanics of
Wood
断裂韧性Fracture
Toughness
裂纹shake(check)
径裂heart shake
轮裂ring shake
环裂round shake
弧裂cup shake
冻裂frost crack
干裂drying shake
贯通裂through shake

脆性破碎（brittle/brash fracture）：
又称做胡萝卜破碎。破碎的表面很象新鲜的胡萝卜表面的破裂。

裂片状破splintering fracture
略脆的破碎brittish fracture
剪切破坏shear
failure
疲劳破坏failure due to
fatigue

弯曲curvature
斜纹cross grain
翘曲distortion(warp)
顺弯bow(camber)
横弯crook
扭曲twisting
纹理方向grain orientation

应力木reaction wood
应压木compression wood
应拉木tension wood