利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

4 条记录 (耗时 0.013 秒)

    Disk bending shear testing and system
    3.
    发明授权
    Disk bending shear testing and system 有权

    公开(公告)号：US10408723B2

    公开(公告)日：2019-09-10

    申请号：US15379808

    申请日：2016-12-15

    申请人： Bell Helicopter Textron Inc.

    发明人： Bogdan Roman Krasnowski ,  Xiaoming Li ,  Chyau Tzeng ,  Robert Patrick Wardlaw ,  Robert Arnold Brack

    IPC分类号： G01N3/20 ,  G01N3/24 ,  G01N3/02 ,  G01N3/04 ,  G01N33/00

    摘要： A method for determining a shear property of a sample includes supporting a sample at three or more separate support locations about a periphery of a first surface of the sample in a testing fixture, the sample including a second surface separated from the first surface by a thickness, wherein the sample is axisymmetric about an axis that is orthogonal to the first surface. The method includes applying a load on the second surface of the sample with a load applicator in a direction substantially parallel with the axis, measuring, with a controller, shear testing data of the sample in response to applying the load, and determining, with the controller, a shear property of the sample from the measured shear testing data.

    METHOD FOR LIMITING INTERLAMINAR FATIGUE IN COMPOSITE LAMINATE AND A COMPONENT INCORPORATING THE SAME
    4.
    发明申请
    METHOD FOR LIMITING INTERLAMINAR FATIGUE IN COMPOSITE LAMINATE AND A COMPONENT INCORPORATING THE SAME 审中-公开
    用于限制复合层压板中的层间疲劳的方法和包含它们的组分

    公开(公告)号：US20160082696A1

    公开(公告)日：2016-03-24

    申请号：US14798658

    申请日：2015-07-14

    申请人： Bell Helicopter Textron Inc.

    发明人： Bogdan Roman Krasnowski ,  Robert Arnold Brack ,  Xiaoming Li ,  Robert Wardlaw

    IPC分类号： B32B7/02 ,  B32B27/08 ,  B32B37/14 ,  B32B27/38

    摘要： In some embodiments, a rotor system for a rotorcraft includes a yoke, a blade, and a grip that is configured to couple the blade to the yoke. The grip has a plurality of baseline layers and a compliant layer. The baseline layers each have a plurality of fibers disposed in a first polymeric matrix. The compliant layer has a plurality of fibers disposed in a second polymeric matrix. The compliant layer is stronger than the baseline layer and the first polymeric matrix has a different chemical composition than the second polymeric matrix.

    摘要翻译： 在一些实施例中，用于旋翼航空器的转子系统包括轭，叶片和被配置成将叶片耦合到轭架的把手。 手柄具有多个基线层和柔顺层。 基线层各自具有设置在第一聚合物基质中的多个纤维。 顺应层具有设置在第二聚合物基质中的多个纤维。 柔顺层比基层更坚固，第一聚合物基质具有不同于第二聚合物基质的化学组成。