Abstract: A method for determining virtually a set of design allowables for a composite material is disclosed. The method includes receiving information about the composite material and a given set of architectures, available test data of the composite material, and a test matrix identifying desired tests to be performed virtually on the composite material and different set of architectures. Using the material information and available test data, a reverse engineering process is used to determine micromechanical material properties. Finite element models of relevant test specimens are generated according to the test matrix and integrating the micromechanical material properties, and are analyzed. A set of allowables and associated properties is generated based on the finite element analyses results.

Abstract: A system and method for generating a shrink wrap around a model. The method includes detecting non-manifold edges in an octree generated shrink wrap by counting a number of faces adjacent to each edge, removing the non-manifold edges by cloning the edges or vertices shared by the non-manifold edge, and generating a first projection for the wrapper by moving each wrapper vertex towards a nearest location on the model. The method includes determining a set of wrapper vertices for reprojection based on the computation of a projection angle and a rotational angle and generating a second projection for the set the wrapper vertices using a seed-based closest point method or the center of the adjacent wrapper vertices.

Abstract: A method for generating a finite element mesh that includes receiving, by a computer system, data regarding a model of a simulated object, categorizing one or more geometric features of the model and dividing the one or more geometric features of the model into surface shapes based on the data regarding the model. The method includes generating a mesh for each surface shape; and interconnecting the generated mesh to form a mesh for the model.

Abstract: A method for simulating a physical object includes receiving user input to move a vertex of a simulated surface from a first location to a second location that is across an edge of the surface. The method also includes generating a visual display that is configured to inform the user that the movement of a vertex to the second location across an edge of the surface is unpermitted.

Abstract: The method generates a simulated object represented by finite elements each comprising two or more nodes that represent a first physical object, the first simulated object comprising a plurality of segments placed adjacent to each other to form a surface of the first simulated object. The method further includes generating a second simulated object. The method determines the distance between individual segments of the first simulated object and the plurality of segments of the second simulated object. The method determines a stiffness matrix and force vectors for the at least one segment of the first simulated object that is in contact with at least one segment of the second simulated object. The method transforms the stiffness matrix and the force vector from the segments to determine a stiffness matrix and a force vector on the two or more nodes of the finite element representation of the physical objects.

Abstract: A system and method for shape optimization that includes receiving information regarding a model that represents one or more physical objects to be manufactured, the information comprises a finite element mesh, geometric parameters, geometric constraints, and manufacturing constraints of the model and generating a morphed mesh that results in an updated finite element mesh in order to meet specified model characteristics. The method further includes generating the morphed mesh by displacing nodes located at the boundary regions of the model and determining a displacement of interior nodes of the finite element mesh using an interpolation of boundary node displacement.

Abstract: The model builder may generate a model object, and initiate the solver to determine whether the model object has constraints that effect the model object. The solver can generate solution data these constraints. The solver may pass any solution data it obtains to the solution display generator, so that the user can view the solution data while the user is building the model with the model builder.

Abstract: A method for generating a finite element mesh that includes receiving, by a computer system, data regarding a model of a simulated object, categorizing one or more geometric features of the model and dividing the one or more geometric features of the model into surface shapes based on the data regarding the model. The method includes generating a mesh for each surface shape; and interconnecting the generated mesh to form a mesh for the model.

Abstract: A system or method includes a simulated model that has a plurality of simulated components, the plurality of components are arranged in a component hierarchical graph such that the combination of the simulated components forms the simulated model. The system includes an inference engine configured to generate one or more redesign recommendations for a component in the simulated model based on redesign recommendation rules. The system may include a display generator for displaying the redesign recommendations to a first user.