Ultimate Strength of Biaxially Loaded Plates

Computational Model Verification and Validation of Elastoplastic Buckling Due to Combined Loads of Thin Plates

“…On the other hand, the proposed numerical model obtained the ultimate buckling stress of σ u = 55. 13 MPa, presenting a difference of 2.17% in comparison with Shanmugam and Narayanan [25]. The results obtained can be seen in Table 3 and Figure 6.…”

“…In sequence, the computational model verification for the elastoplastic buckling of a holeless simply supported plate subjected to an in-plane biaxial compressive load (with no lateral load) was carried out, based on the analytical study presented by Shanmugam and Narayanan [25]. The mechanical properties of the steel used are modulus of elasticity E = 205 GPa, Poisson's ratio ν = 0.3, and yield stress σ Y = 245 MPa; the plate dimensions are a = 720 mm, b = 240 mm, and t = 4 mm (see Figure 1).…”

“…The results obtained can be seen in Table 3 and Figure 6. For the verification of the model according to Shanmugam and Narayanan [25], one can note in Figure 6 that the greatest stress points are located in the center of the plate.…”

“…Another verification for the biaxial elastoplastic buckling computational model was carried out considering a simply supported square plate with a centralized circular hole and subjected to a biaxial compressive load (without lateral load), according to Shanmugam et al [26]. For the verification of the model according to Shanmugam and Narayanan [25], one can note in Figure 6 that the greatest stress points are located in the center of the plate.…”

“…The computational model validation process was performed by confronting the results of the current study with those obtained in the experimental tests found in the literature. For the first validation, the elastoplastic biaxial buckling analysis of a simply supported square plate (see Figures 1 and 2) under biaxial compressive loads and no lateral loading was carried out, according to Shanmugam and Narayanan [25]. The dimensions of the metallic plate are a = b = 56 mm and t = 2.032 mm, while its mechanical properties are E = 205 GPa, ν = 0.3, and σ Y = 334.7 MPa.…”