It looks that ABAQUS B33 element is using some other (cubic?) interpolation in the axial direction, while in academic papers EB beam implementation is a combination of truss element + beam dofs. When using B31 element (linear), our implementation has the same results in the axial direction.
It looks that ABAQUS B33 element is using some other (cubic?) interpolation in the axial direction, while in academic papers EB beam implementation is a combination of truss element + beam dofs. When using B31 element (linear), our implementation has the same results in the axial direction.