“…To analyse the entire folded plate, we treat the individual stiffened and un-stiffened flat plates together as superelements, and superpose their stiffness matrices. However, as reported in Reference [24], one difficulty remains. Due to a lack of Kronecker delta properties in the meshfree shape functions, the direct superposition of the stiffness matrices does not give satisfying analytical results.…”
Section: Geometric Non-linear Analysis Of Folded Platesmentioning
confidence: 92%
“…The subscript I on the right-hand side of Equations (23) and (24) refers to an imaginary reference line that runs parallel to the x-axis through the I th kernel particle, whereas on the left-hand side it refers to the locations of spline nodes on this line.…”
Section: Displacements Approximationmentioning
confidence: 99%
“…Similar to the process in Reference [24], the equation that transforms the nodal parameters u 0s I , w sx I , and sx I of the x-stiffener into the generalized displacements of the plate d can be derived as (28) where…”
SUMMARYThis paper investigates the geometric non-linear behaviour of stiffened and un-stiffened folded plate structures using the spline strip kernel particle method (SSKPM). The first-order shear deformable plate theory and large deflection theory of von Karman are employed. The folded plate structures are considered as assemblies of individual stiffened and un-stiffened flat plates that lie on different planes. We regard these stiffened and un-stiffened plate structures as superelements, and superpose their stiffness matrices to derive the final global stiffness matrices. Several numerical example problems are examined, and comparison studies are carried out with other available results. The effect of the size of the support, the order of the polynomial basis functions, and the spacing of the spline nodes on the convergence of the proposed method is examined.
“…To analyse the entire folded plate, we treat the individual stiffened and un-stiffened flat plates together as superelements, and superpose their stiffness matrices. However, as reported in Reference [24], one difficulty remains. Due to a lack of Kronecker delta properties in the meshfree shape functions, the direct superposition of the stiffness matrices does not give satisfying analytical results.…”
Section: Geometric Non-linear Analysis Of Folded Platesmentioning
confidence: 92%
“…The subscript I on the right-hand side of Equations (23) and (24) refers to an imaginary reference line that runs parallel to the x-axis through the I th kernel particle, whereas on the left-hand side it refers to the locations of spline nodes on this line.…”
Section: Displacements Approximationmentioning
confidence: 99%
“…Similar to the process in Reference [24], the equation that transforms the nodal parameters u 0s I , w sx I , and sx I of the x-stiffener into the generalized displacements of the plate d can be derived as (28) where…”
SUMMARYThis paper investigates the geometric non-linear behaviour of stiffened and un-stiffened folded plate structures using the spline strip kernel particle method (SSKPM). The first-order shear deformable plate theory and large deflection theory of von Karman are employed. The folded plate structures are considered as assemblies of individual stiffened and un-stiffened flat plates that lie on different planes. We regard these stiffened and un-stiffened plate structures as superelements, and superpose their stiffness matrices to derive the final global stiffness matrices. Several numerical example problems are examined, and comparison studies are carried out with other available results. The effect of the size of the support, the order of the polynomial basis functions, and the spacing of the spline nodes on the convergence of the proposed method is examined.
“…Some indications can be found in specialized literature on the best possible way to choose the location and shape parameters of the activation functions. As an example, Peng et al [8] observe that a larger support size and higher order of RB functions will yield better convergence results. This fact can be partially explained in the light of the stationarity of the total energy of the continuum, as explained in the following paragraph.…”
Section: Meshless Approach For Static Problemmentioning
confidence: 99%
“…Finding the vector field which minimizes (10) and satisfies the EBC (7) and the straindisplacement conditions (8) yields the solution of the elastostatic problem.…”
Section: Meshless Approach For Static Problemmentioning
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