The PPR UELs in 2D and 3D, based on the Engineering Fracture Mechanics journal papers below, are available for download on this page.

"Computational implementation of the PPR potential-based cohesive model in ABAQUS: Educational perspective." K. Park and G.H. Paulino. Engineering Fracture Mechanics. Vol. 93, pp. 239-262, 2012.

Link to PDF

"A growing library of three-dimensional cohesive elements for use in ABAQUS." D. W. Spring and G.H. Paulino. Engineering Fracture Mechanics. Vol. 126, pp. 190-216, 2014.

Link to PDF

“Computational Homogenization of the Debonding of Particle Reinforced Composites: The Role of Interphases in Interfaces” D. W. Spring and G. H. Paulino. Computational Materials Science. Accepted

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The flowchart to the left shows the major steps of the PPR UEL, which is available below. The subroutine is entered and exited from the ABAQUS finite element routine at the green ellipses.

Downloads:

2D UEL (zip format)

3D BRICK UEL (zip format)

3D TET4 UEL (zip format)

3D TET10 UEL (3D) (zip format)

Additional PPR Resources:

- Nomenclature (equivalence between variables in paper and in UEL)

Flow chart of the PPR UEL

Download input file (2D)

Download input file (3D)

The results shown in the figure to the right can be obtained using a simple Matlab script that parses the relevant information from the ABAQUS output file (*.dat) and plots the result.

Download MatLab parser/plotter

The ABAQUS input file representing the problem above is available for download below. The file contains the relevant information pertaining to the mesh (nodes and element connectivity), material properties for the bulk and cohesive elements, and loads and boundary conditions, etc.

Download input file (3D)

The results shown in the figure to the left can be obtained using a simple Matlab script that parses the relevant information from the ABAQUS output file (*.dat) and plots the result.

Download MatLab parser/plotter

The ABAQUS input file representing the problem above is available for download below. The file contains the relevant information pertaining to the mesh (nodes and element connectivity), material properties for the bulk and cohesive elements, and loads and boundary conditions, etc.

Download UEL w/ friction

__Download input file__

The results shown in the figure to the left can be obtained using a simple Matlab script that parses the relevant information from the ABAQUS output file (*.dat) and plots the result.

Download MatLab parser/plotter