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مکانیک::
مدول الاستیک
Thus, a thin lamina has four independent material constants of elastic modulus in the fiber direction, En, elastic modulus in the transverse direction, E22, in-plane shear modulus, G12, and in-plane Poisson's ratio, 1/12.
The material has an elastic modulus of E = 2940 MPa, Poisson's ratio of v = 0.38, and fracture toughness oiKjc = 1.33 MPa-y/m.
Elastic modulus in fiber direction: E\\ = 159.96 GPa Elastic modulus in transverse direction: E22 = 8.96 GPa In-plane Poisson's ratio: vu = 1/3 In-plane shear modulus: G12 = 3.0054 GPa Mass density: p = 8000 kg/m3
In the FEA model, a very high elastic modulus is assigned to represent the rigid impactor.
in which E is the elastic modulus, a is the coefficient of thermal expansion, and v is the Poisson's ratio.
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