Molded Rubber Mechanics
Browser-based tools for first-pass results for molded rubber part state of cure, molding shrinkage, static and dynamic stiffness and shear strains. Intended for early-stage sizing, sensitivity checks, and feasibility exploration.
Tip: Start with either a compression sandwich or axial tubeform shape.
Documentation PDFs include user information, modeling techniques, assumptions and references.
Rubber Compression Sandwich
Rubber Sandwich Molding Shrinkage
Molded shape and molded in shear strains can be estimated from the molding process.
Input the shear modulus, general part shape and define the edge contours.
Define the OD and ID contours.
Define the molding temperature and thermal coefficient of expansion.
Outputs include the molded part shape and molded in strains.
Rubber Compression Sandwich
Compression Stiffness
Stiffness studies for various geometries with and without a center hole. Handles high shape factor(loaded area to free bulge area) parts with nearly incompressible materials.
Sandwich general shape type.
Material properties of shear modulus and end conditions of free or fixed.
Outputs include deflected shape, compression stiffness and shear strains.
Rubber Compression Sandwich
Non-linear compression
Non-linear stiffness studies for various geometries with and with center hole. Handles high shape factor parts with nearly incompressible materials.
Sandwich general shape type.
Material properties and end conditions.
Outputs include deflected shape, nonlinear compression stiffness and shear strains.
Axial Rubber Tubeform
Rubber Tubeform Axial Stiffness
Axial stiffness and shear strain estimates for tubeform geometries.
Tubeform geometry and constraints.
Material properties and end conditions.
Outputs: Axial stiffness and shear strains.
Quick selection
Which module should I use?
Rubber Sandwich Shrinkage: estimated shrinkage and molded part shape and molded-in shear strains.
Rubber Sandwich Stiffness: estimated compression stiffness, especially high shape factor geometries.
Rubber Sandwich Nonlinear Stiffness: higher compression strains where nonlinearity may be important.
Rubber Tubeform: axial stiffness and shear strains.
Validate results independently with further detailed analyses and testing.
Methods, limitations, and responsibility Read once
These modules implement physics-based, low-order models for rapid engineering insight. They prioritize speed and transparency over high-fidelity FEA or similar. Assumptions, boundary conditions, and correlations used are documented in the PDFs and within the modules. Users are responsible for verifying applicability and results for their specific use case.
Questions: contact@xl4sim.com · See Terms
