PSI - Issue 60

M Mohan Kumar et al. / Procedia Structural Integrity 60 (2024) 177–184 Mohan Kumar et.al / Structural Integrity Procedia 00 (2024) 000 – 000

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3.2 Material Properties: Aluminium 2024-T351 material is used for the skin, stiffeners members and rivets. Table II describes few material properties used for analysis.

Table 2: Material details of Aluminum alloy 2024-T351

Symbol

Quantity

Values 73 GPa

E

Young ’ s Modulus Poisson ’ s Ratio Yield strength

υ S y σ f’ S u

0.33 334 MPa 469 MPa 613 MPa 8 MPa√m 0.35 0.121 710 MPa 6 E-9

Ultimate tensile strength Fatigue strength coefficient

C

Material Constant

ΔK th ε f’

Range of threshold stress intensity factor Fatigue ductility coefficient Cyclic strain hardening exponent Cyclic strength coefficient

n’ k’

3.3 Loads and Boundary condition details Both Unstiffened, stiffened riveted and integral panels are fixed in all degrees offreedomat one end and a uniform tensile load of 150 KN is applied at the other end. The details of boundary conditions are depicted in the Table III.

P

Table III: Applied Load details

Symbol

Quantity

Values 150KN

P

Uniform Tensile Load