[Midas Gen][ABAQUS][Midas2Abaqus] Verification Example Static-31: Elliptic membrane under uniformly distributed load [ Midas Gen 验证实例 Static-31: 椭圆薄膜受均布荷载]

【1】Problem Description ( Midas Gen’s Verification Examples Static-31:  Elliptic membrane under uniformly distributed load)

An elliptical membrane of thickness, t and geometrical properties is subjected to a uniformly distributed outward pressure. Determine the edge stress at the target point C.

Structural geometry and analysis model

【2】MODEL Properties

Dimension
Major radius 6.5 m Minor radius 5.5m

Element
Plane stress element, Plate element

Material
Modulus of elasticity E = 2.1×10 5 MPa
Poisson’s ratio ν = 0.3

Sectional Property
Thickness 0.10 m

Boundary Condition
Node 1~8: Constrain D Z and R Y
Node 275~282: Constrain D X and R Y

Load Case
Uniformly distributed outward pressure, q = 10 MPa

【3】Midas Gen Model

【4】Midas 2 Abaqus Model

【5】Abaqus Model

【6】Comparison of Results

(1) Midas Gen ( Stress-YY)

(2) Abaqus ( Stress-YY)

Result Theoretical Midas Gen Abaqus
Stress(σY) 92.070 90.520 93.290

(3) Midas Gen vs. Abaqus ( Stress-YY) ( Unit: MPa)


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