Included are systems and methods for modeling compliant parts. Some of the systems and/or methods include creating a 3-dimensional simulation of a product that includes an outer part and an inner part, determining a deformation characteristic of the product, and simulating an interaction of the inner part with the outer part. Similarly, in some of the systems and/or methods a characteristic of interaction may be measured from the interaction, a determination may be made regarding whether the characteristic of interaction meets a predetermined threshold. In some of the systems and/or methods, in response to determining that the characteristic of interaction meets the predetermined threshold, an output may be sent indicating product design acceptability. In response to determining that the characteristic of interaction does not meet the predetermined threshold, the 3-dimensional simulation may be iteratively altered until the characteristic of interaction meets the predetermined threshold.