Finite element modeling is a tool engineers use in designing products across every industry. An engineer will create a 3-D rendering of an assembly with the finite element software and define each material of interest. In order to run simulations to predict performance, the 3-D model defines the parts’ geometries, their relation to one another, and their material properties. These properties are well defined for metals, plastics, and other standard engineering materials. However, unlike metals, PSAs are viscoelastic and their properties are frequency and temperature sensitive. This requires advanced testing to create data that describes what the mechanical response will be under differing loads, temperatures, geometries, etc.
3M is uniquely positioned to characterize these frequency and temperature sensitive materials and provide them in a format compatible with a variety of finite element modeling software. These material models can be used to predict mechanical behavior in a finite element analysis. Conventional mechanical properties, such as Young’s modulus and Poisson’s ratio, even when obtained at relevant rates and temperatures, do not accurately capture PSA behavior. Consequently, 3M has developed Material Data Cards (MDCs) which are available for common 3M materials in a ready to use format for numerous commercially available FEA software applications. Currently, we can offer an MDC for any 3M PSA which is compatible with Abaqus, ANSYS MAPDL, ANSYS Workbench, and LS Dyna.
These MDCs are available for PSAs in the linear viscoelastic regime, that is, strains less than about 25% in any direction (tensile, compression, shear). 3M’s strategy is to measure rate and temperature dependent behavior over a wide range of conditions and model the material response using linear viscoelasticity. The appropriateness and validity of these assumptions can then be determined for each material based on validation of the material model in a relevant use case.
You can request an MDC using the button below to tell us some basic information such as the product you’re interested in, your modeling system and the substrates you’re bonding. If you have questions regarding methodology or application, use the Additional Information field.
3M offers a wide range of innovative adhesives that can be selected for optimal bond area and anticipated loadings in joint designs.
Through the 3M IATD TSR Program and the 3M IATD Design Solutions Program, 3M also helps customers by conducting design reviews and identifying the best design solutions.