stiffness factor การใช้

• Excluding Douglas fir-larch, hem fir's modulus of elasticity value as a stiffness factor in floor systems ( denoted as MOE or E ) is stronger than all other western species combinations.
• Where G is the strain energy release rate, \ sigma is the applied stress, a is half the crack length, and E is the Young s modulus, which for the case of plane strain should be divided by the plate stiffness factor ( 1-? ^ 2 ).