An enhanced single Gaussian point continuum finite element formulation using automatic differentiation: Source code and data

This dataset contains the source code and the data with an example of uniaxial strain of an enhanced single Gaussian point continuum finite elemnet formulation using automatic differentiation.

This contribution presents a low-order 3D finite element formulation with hourglass stabilization using automatic differentiation. Here, the former Q1STc element formulation is enhanced by an approximation-free computation of the inverse of the Jacobian. The improved version is termed "Q1STc+."

The corresponding publication is:

Pacolli, N., Awad, A., Kehls, J., Sauren, B., Klinkel, S., Reese, S., Holthusen, H.An enhanced single Gaussian point continuum finite elemnet formulation using automatic differentiation.

Standalone_Elementroutine: Q1STc+_Codes contains:

main.f90: Standalone routine for local uniaxial strain test

Makefile: Makefile to create executable "Q1STc+"

elem40.f90: Element routine "Q1STc+" with elem_sub.f90 as the subroutine written in AceGen

mat52.f90: Elasto-plastic material routine with all subroutines written in AceGen

elem_mat_select.f90: The selected material routine (Here: mat52)

elem_subs.f90: Subroutines for elem40.f90

mat_subs.f90: Subroutines for mat52.f90