TENSION LOAD FIXTURE AND METHOD FOR EVALUATING FRACTURE BEHAVIOR OF A COMPOSITE MATERIAL

    公开(公告)号:US20230341303A1

    公开(公告)日:2023-10-26

    申请号:US17726091

    申请日:2022-04-21

    CPC classification number: G01N3/08 G01N2203/04 G01N2203/0017

    Abstract: A tension load fixture for applying tension or loading forces to a specimen comprises a pair of tension arms and an imaging device. The pair of tension arms are configured to releasably couple to opposite end regions of a specimen and to apply tension or loading forces to the specimen. The specimen is configured to be positioned between the pair of tension arms and defines a notch between the opposite end regions of the specimen. The notch extends from a side of the specimen to a middle region of the specimen. The imaging device is configured to capture one or more images of the middle region of the specimen and is configured to rotate about a central axis of the tension load fixture that is proximate to the middle region of the specimen to facilitate generation of a three-dimensional image of the middle region of the specimen as the specimen is subjected to tension or loading forces.

    PROGRESSIVE DAMAGE AND FAILURE ANALYSIS OF METAL PARTS USING COMPUTED TOMOGRAPHY

    公开(公告)号:US20230401686A1

    公开(公告)日:2023-12-14

    申请号:US17664463

    申请日:2022-05-23

    CPC classification number: G06T7/0004 G06T2207/10072 G06F30/15

    Abstract: A computer-based method for evaluating progressive damage in a metal test component includes providing Computed Tomography (CT) image data of the component to a processor and processing the CT image data via the processor, including detecting observable defects in the component. The method also includes characterizing the observable defects into corresponding defect categories, generating a data table of the observable defects and the corresponding defect categories, and embedding a collective set of data from the data table into a finite element model (FEM) of the component to thereby construct a modified FEM of the metal test component. Additionally, the method includes analyzing the modified FEM through an isotropic and/or anisotropic structural model, via the processor, to thereby generate a set of test results. A quality control action is then executed with respect to the metal test component based on the test results.

    Advances to Through-Thickness Reinforced Composite Analysis Capabilities

    公开(公告)号:US20230306147A1

    公开(公告)日:2023-09-28

    申请号:US17689563

    申请日:2022-03-08

    CPC classification number: G06F30/15 G06F30/17 G06F30/23

    Abstract: An example method includes determining analytical material properties indicative of an effective fracture behavior of a through-thickness reinforcement. The method also includes obtaining data defining a cohesive formulation within a finite element analyzer. The cohesive formulation is representative of the through-thickness reinforcement, and the data defining the cohesive formulation is derived from the analytical material properties. The method further includes generating a finite element model for the composite structure. The composite structure includes the through-thickness reinforcement, and the finite element model represents the through-thickness reinforcement using the cohesive formulation. The method also includes analyzing a mechanical performance of the composite structure using the finite element analyzer and the finite element model, and outputting data indicative of the mechanical performance of the composite structure.

    Manufacturing Processes for Improved Mechanical Performance of Stitched Composites

    公开(公告)号:US20230049264A1

    公开(公告)日:2023-02-16

    申请号:US17399815

    申请日:2021-08-11

    Abstract: An example method includes determining, by a computing system, a dry thickness of a fabric preform. The method also includes determining, by the computing system, a debulked thickness of the fabric preform using the dry thickness of the fabric preform. In addition, the method includes determining, by the computing system, a stitch tension using the dry thickness of the fabric preform and the debulked thickness of the fabric preform. And the method includes causing, by the computing system, a stitching machine to apply a through-the-thickness stitch having the stitch tension to the fabric preform.

    SYSTEM, METHOD AND APPARATUS OF ANALYTICAL CRITERIA FOR COMPOSITE STRUCTURE DURABILITY AND CERTIFICATION

    公开(公告)号:US20230118613A1

    公开(公告)日:2023-04-20

    申请号:US17501798

    申请日:2021-10-14

    Abstract: Systems, apparatuses and methods provides for technology that generates a plurality of discrete and finite elements associated with a component, where a number of the plurality of discrete and finite elements corresponds to a size of an estimated process zone. The technology further identifies material input properties of the component, models crack propagation throughout the plurality of discrete and finite elements based on the material input properties and models a release response in the plurality of discrete and finite elements based on the material input properties.

    Reinforced composite structure analysis system

    公开(公告)号:US11379628B2

    公开(公告)日:2022-07-05

    申请号:US16584119

    申请日:2019-09-26

    Abstract: A method, apparatus, and system for managing a composite structure. A set of component models is created for a set of components in the composite structure. A set of embedded reinforcement element models is placed within the set of component models for the set of components in the composite structure to form a composite structure model for the composite structure. The set of embedded reinforcement element models is for a set of embedded reinforcements embedded within the set of components in the composite structure. A structural analysis of the composite structure is performed using the composite structure model formed by the set of component models and the set of embedded reinforcement element models, wherein the set of embedded reinforcement element models enables modeling at least one of a deformation or a failure of embedded reinforcements.

    System and method for predicting failure initiation and propagation in bonded structures

    公开(公告)号:US10997330B2

    公开(公告)日:2021-05-04

    申请号:US16274868

    申请日:2019-02-13

    Abstract: A method includes obtaining failure initiation characteristics of a bonding layer of one or more bonded structures and determining, based on the failure initiation characteristics, a first characteristic dimension for each analysis element of a first portion of a finite element analysis model. The method includes obtaining failure propagation characteristics of the bonding layer and determining, based on the failure propagation characteristics, a second characteristic dimension for each analysis element of a second portion of the model. The method includes assigning a first set of material parameters to analysis elements of the first portion of the model and assigning a second set of material parameters to analysis elements of the second portion of the model. The method includes evaluating failure modes of the one or more bonded structures based on a solution to the model, the first set of material parameters, and the second set of material parameters.

    Progressive damage and failure analysis of metal parts using computed tomography

    公开(公告)号:US12165303B2

    公开(公告)日:2024-12-10

    申请号:US17664463

    申请日:2022-05-23

    Abstract: A computer-based method for evaluating progressive damage in a metal test component includes providing Computed Tomography (CT) image data of the component to a processor and processing the CT image data via the processor, including detecting observable defects in the component. The method also includes characterizing the observable defects into corresponding defect categories, generating a data table of the observable defects and the corresponding defect categories, and embedding a collective set of data from the data table into a finite element model (FEM) of the component to thereby construct a modified FEM of the metal test component. Additionally, the method includes analyzing the modified FEM through an isotropic and/or anisotropic structural model, via the processor, to thereby generate a set of test results. A quality control action is then executed with respect to the metal test component based on the test results.

Patent Agency Ranking