Your Title Here


Your Subtitle Here



Black Rubber analytical Modules



These are a collection of modules that model various rubber molded shapes and configurations. For most of the models, documentation is cited for the modeling method used. They cover a myriad of design issues like state-of-cure, molding shrinkage, stiffness, shear strains, etc.



Molded Rubber Sandwich


This module will estimate the molding shrinkage for rubber sandwich pads. Cylindrical, conical and curved conicals can be modeled. The top and bottom surfaces can be bonded to rigid members or free. Shear induced rz stain and resultant rz plots are also given. The solution uses the difference in molding and room temperatures. A linear FE model is used.



Clickable image


Rubber Sandwich Linear FEM


This module will estimate the small displacement (1 - 5%) compression stiffness and shear strains for rubber pads. Cylindrical, conical and curved conicals can be modeled with user input ID, OD, height, and edge/side contours. The top and bottom surfaces can be bonded to rigid members or free. A small strain linear FEM allowing for high bulk moduli is used.



Clickable image


Rubber SanDwich Linear FEM with Geometric Nonlinearity


This is the same module at the Rubber Sandwich Linear FEM but applies the displacement in user defined increments and the deformed geometry of the current step is used in the next step. For large displacements this should be used. It will handle both compression and tension.



Clickable image


Rubber Sandwich Nonlinear neo-Hookean FE


This module will estimate the compression stiffness and shear strains for rubber pads. Cylindrical, conical and curved conicals can be modeled with user input ID, OD, height, and edge/side contours. The top and bottom surfaces can be bonded to rigid members or free. A nonlinear, Neo-Hookean FEM solution is used.



Clickable image


Rubber Tubeform


This module will estimate the state-of-cure, molding shrinkage and axial stiffness for tubeform shapes ranging from cylindrical, conical and general. A linear FE method is used.



Clickable image




Copyright © 2025 XL4SIM, Inc. All rights reserved. DISCLAIMER: This software is provided “as is,” without warranty of any kind, express or implied, including but not limited to the warranties of merchantability, fitness for a particular purpose, and noninfringement. In no event shall the author or copyright holder be liable for any claim, damages, or other liability, whether in an action of contract, tort, or otherwise, arising from, out of, or in connection with the software or the use or other dealings in the software. Use of this software is at your own risk. Caveat usor.