A design support apparatus supporting designing of a product which uses a fiber material includes a processor that creates a predicted shape model by predicting a shape of the product before a deformation processing. The processor: creates a 3-dimensional shape model of the product; creates curved shape models by separating the 3-dimensional shape model into two or more fiber layers; sets a correspondence relationship between the curved shape models; creates an orientation vector field in the curved shape models; and predicts the shape of the product before the deformation processing by developing the curved shape models on a flat surface based on the correspondence relationship between the curved shape models and the orientation vector field in the curved shape models, and creates the predicted shape model based on the predicted shape.

A method and device for simulating microstructure evolution of a material based on solution in an exponential time-difference format. The method includes: establishing a reaction rate theory model for substance defects, wherein the model is expressed with equations that comprise linear terms having coefficients characterized with matrixes; and iteratively solving the equations by using an exponential time-difference format, wherein during the iterative solving, the linear terms with exponential powers of the matrixes as the coefficients are integrated. Since a rate theory is not limited by spatial-temporal scales, the advantages of the rate theory can be significantly reflected when the microstructure evolution is simulated under a high damage dose condition; and then, the equations are solved by using the exponential time-difference format, with a solved result better in accuracy and higher in precision.

An electromagnetic field analysis method for an anisotropic conductive material involves using an analysis grid having a first side and a second side that are orthogonal to each other to analyze an electromagnetic property of an anisotropic conductive material in which conductivity in a first direction is different from conductivity in a second direction. One or both of the first direction and the second direction are parallel to a direction different from either one of the first side and the second side of the analysis grid. One electromagnetic field component located on the first side and extending along the second side is calculated based on electromagnetic field components that are located on a plurality of the second sides surrounding the one electromagnetic field component and that extend along the second sides.

An optimized Gamma-prime (γ′) strengthened austenitic transformation induced plasticity (TRIP) steel comprises a composition designed and processed such that the optimized γ′ strengthened austenitic TRIP steel meets property objectives comprising a yield strength of 896 MPa (130 ksi), and an austenite stability designed to have M.sub.s.sup.σ(sh)=−40° C., wherein M.sub.s.sup.σ(sh) is a temperature for shear, and wherein the property objectives are design specifications of the optimized γ′ strengthened austenitic TRIP steel. The optimized γ′ strengthened austenitic TRIP steel is Blastalloy TRIP 130.

The present disclosure provides an optimized designing method for a laminate preform of a ceramic matrix composite e. With overall consideration of a strength requirement of a component, a geometric shape and properties of the laminate preform, the method includes: optimizing, based on a corresponding mechanical formula, a fiber volume fraction of each laminate constituting the preform and a fiber direction in the laminate, and selecting a preferred microscopic structure for each laminate, thereby taking full advantage of material performance. The method is applicable for optimized design of various components of the ceramic matrix composite.

Systems and methods of simulating a physical bond layer comprising a composite material and predicting one or more properties of the composite material are disclosed. A method includes obtaining one or more X-ray images of a bulk physical sample of a composite material, the one or more X-ray images including one or more visual identifiers that correspond to one or more materials present in the bulk physical sample, and generating a three dimensional image of the bulk physical sample from the one or more X-ray images. The three dimensional image includes one or more labels indicating the presence and location of the one or more materials. The method further includes creating a meshed three dimensional microstructure-based model from the three dimensional image and simulating a physical bond layer with the meshed three dimensional microstructure-based model. The meshed three dimensional microstructure-based model incorporates data obtained from the one or more labels.

Systems and methods are provided for composite part design. One embodiment is an apparatus that designs a composite part. The apparatus includes a controller configured to generate a design for the part. The controller subdivides the part into blocks that each comprise a contiguous stack of layers within the part, identifies rules that constrain how layers that have different fiber orientations are stacked within the part, generates a guide for a block that prescribes a fiber orientation for each layer of the block, and identifies sublaminates comprising that are compatible with the guide for the block. The controller subdivides the part into panels, and selects one of the compatible sublaminates for one of the panels of the block, based on compatible sublaminates for neighboring panels. The apparatus also includes a memory configured to store the design for use by an Automated Fiber Placement (AFP) machine constructing the part.

Systems and methods are provided for composite part design. One embodiment is a method for selectively analyzing feasibility of optimizing fiber orientations for layers of a multi-layer composite part subdivided into panels that each comprise a fraction of an area of the composite part. The method includes identifying stacking sequence rules that constrain the composition of sublaminates that comprise consecutively stacked layers utilized during optimization, for each panel of the composite part, analyzing the panel by identifying ply counts that constrain a number of plies at the panel, selecting a number of sublaminates to utilize during optimization of the panel, calculating ply count ranges for a laminate, based on the number of sublaminates and the stacking sequence rules, and determining whether the ply counts for the panel comply with the ply count ranges for the laminates.

Systems and methods are provided for composite part design. One embodiment is a method of creating a library of sublaminates used in optimizing fiber orientations of a multi-layer composite part subdivided along its depth into panels that each comprise a fraction of the area of the composite part. The method includes creating sublaminates that each comprise consecutively stacked layers having a unique sequence of fiber orientations, checking the sublaminates for compliance with stacking sequence rules that constrain how fiber orientations are sequenced, and removing sublaminates that do not comply with the stacking sequence rules. The method further includes generating new sublaminates that each include an additional layer, by, for each of multiple fiber orientations: selecting a sublaminate that was not remove, and generating a new sublaminate by appending an additional layer having the fiber orientation to the selected sublaminate.

A method of designing an anisotropic composite laminate structure to constitute a predetermined member of an airframe structure of an aircraft and includes a plurality of types of composite layers containing reinforcing fibers with different fiber orientations is provided. The method includes dividing the anisotropic composite laminate structure in the predetermined member into a plurality of regions in a thickness direction. The method includes determining, for each of the regions, at least a stacking sequence of the plurality of types of composite layers in accordance with a direction of stress acting on the predetermined member.