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    Method and apparatus for testing a test piece
    2.
    发明授权
    Method and apparatus for testing a test piece 失效
    用于测试试件的方法和装置

    公开(公告)号：US5056370A

    公开(公告)日：1991-10-15

    申请号：US554346

    申请日：1990-07-19

    申请人： Wolfgang Maier

    发明人： Wolfgang Maier

    IPC分类号： G01M5/00 ,  G01N3/00 ,  G01N3/02 ,  G01N3/04 ,  G01N3/08

    CPC分类号： G01M5/0058 ,  G01N3/08 ,  G01N2203/0019 ,  G01N2203/0023 ,  G01N2203/025 ,  G01N2203/04 ,  G01N2203/0411 ,  G01N2203/0435

    摘要： A method and apparatus for testing a test piece having opposing ends includes connecting the ends of the test piece to a first load head and to a plate which may be attached to a second test head, respectively. The device actuates a driving device to spatially adjust the load head to apply a variable load to the test piece. The device determines the magnitude and direction of load head displacement variables applied to the load head, measures the actual magnitude and direction of displacement of the load head in relation to a fixed plate, sets and varies boundary conditions of the test piece from the displacement of the load head, compares actual values of the boundary conditions with freely programmable predetermined desired values of the boundary conditions, and determines a control variable for the driving device. In order to extend testing capabilities, the device determines additional control variables for the driving device using one of values measured in a test area located between the ends of the test piece and values that can be reduced to correspondingly measured values, wherein functional dependencies of the additional control variables are determined before the determination of the load head displacement variables or by identifying the additional control variables in the test.

    摘要翻译： 用于测试具有相对端的测试件的方法和设备包括将测试件的端部连接到第一负载头和可以分别附接到第二测试头的板。 该装置致动驱动装置以空间调节负载头，以将可变负载施加到试件上。 该装置决定了施加在负载头上的负载头位移量的大小和方向，测量负载头相对于固定板的位移的实际大小和方向，将试件的边界条件从位移 负载头将边界条件的实际值与边界条件的可自由编程的预定期望值进行比较，并确定驱动装置的控制变量。 为了扩展测试能力，设备使用位于测试件端部之间的测试区域中测量的值之一和可以减少到相应的测量值的值来确定驱动设备的附加控制变量，其中功能依赖性 在确定负载头位移变量之前或通过识别测试中的附加控制变量来确定额外的控制变量。

    TESTING ARRANGEMENT AND METHOD FOR COMPOSITE WITH NOODLE
    3.
    发明公开
    TESTING ARRANGEMENT AND METHOD FOR COMPOSITE WITH NOODLE 审中-公开

    公开(公告)号：US20240248019A1

    公开(公告)日：2024-07-25

    申请号：US18099634

    申请日：2023-01-20

    申请人： RAYTHEON TECHNOLOGIES CORPORATION

    发明人： Christian X. Campbell

    IPC分类号： G01N3/20 ,  G01N3/14

    CPC分类号： G01N3/20 ,  G01N3/14 ,  G01N2203/0017 ,  G01N2203/0019 ,  G01N2203/0023 ,  G01N2203/0033 ,  G01N2203/025 ,  G01N2203/0262 ,  G01N2203/04

    摘要： A testing arrangement includes a test specimen that is formed of a fiber composite that has first, second, and third groups of fiber ply layers. Each fiber ply layer is curved so as to have an elbow. The elbows are joined back-to-back at a central region to form first, second, and third arms that extend outwardly from the central region. The elbows define a space in the central region, and there is a space-filler within the space. The test specimen is mounted in a testing fixture such that the first and second arms are in four-point bend loading and the third arm is oriented vertically. The testing fixture is actuatable to apply an actuated load. There is an applied load on the third arm. The applied load and the actuated load cause stress in the space-filler for evaluating mechanical behavior of the space-filler.