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29 条记录 (耗时 0.014 秒)

    Shaped charge effect measurement
    1.
    发明授权
    Shaped charge effect measurement 有权

    公开(公告)号：US11585646B2

    公开(公告)日：2023-02-21

    申请号：US16489322

    申请日：2018-11-27

    申请人： Halliburton Energy Services, Inc.

    发明人： Dennis J. Haggerty

    IPC分类号： E21B49/02 ,  G01N3/313 ,  G01N15/08 ,  E21B43/117 ,  G01N33/24 ,  F42B35/00 ,  F42B1/028

    摘要： A method includes determining a perforation tunnel geometry of a perforation tunnel in a solid sample, the perforation tunnel created by activating a shaped charge in proximity to the solid sample. The method also includes performing a first flow test on the solid sample and creating an analog aperture having an aperture geometry in a solid sample analog of the solid sample, wherein the aperture geometry and the perforation tunnel geometry satisfies a similarity threshold. The method also includes performing a second flow test on the solid sample analog and determining a shaped charge effect based on a comparison between a second flow test result and a first flow test result.

    SYSTEM AND METHOD OF MONITORING VIBRATION OF A BLASTING MODEL TEST FOR A JOINTED ROCK MASS
    2.
    发明申请
    SYSTEM AND METHOD OF MONITORING VIBRATION OF A BLASTING MODEL TEST FOR A JOINTED ROCK MASS 有权

    公开(公告)号：US20220244155A1

    公开(公告)日：2022-08-04

    申请号：US17524696

    申请日：2021-11-11

    申请人： ANHUI UNIVERSITY OF SCIENCE AND TECHNOLOGY

    发明人： Qinyong MA ,  Qingqing SU ,  Pu YUAN

    IPC分类号： G01N3/313 ,  G01N3/06 ,  G01N33/24 ,  G01V99/00 ,  E21D9/00

    摘要： An improved system of monitoring vibration of a blasting model test for a jointed rock mass and a method are provided. The system includes: a loading subsystem for three-way load, a model-surface blasting-vibration acquisition subsystem, and a model-interior dynamic stress-strain acquisition subsystem. The system and the method are provided, and a blasting model for a transparent jointed rock mass and a monitoring method that are obtained can analyze the influence of a joint inclination angle on propagation and attenuation laws of blasting stress waves in the jointed rock mass, and can analyze the influence of different millisecond blasting modes on the stability of an existing tunnel in the jointed rock mass, and can capture a real-time dynamic evolution process of cracks. The stress and strain measurement technologies used can perform omnibearing monitoring and recording for large deformations of surrounding rock under blasting load, and can resist the electromagnetic interference.

    METHOD FOR CALCULATING INTERNAL EXPLOSION LOAD SPEED BASED ON INCREMENTAL CRACK GROWTH DISTANCE OF PIPELINE
    5.
    发明申请
    METHOD FOR CALCULATING INTERNAL EXPLOSION LOAD SPEED BASED ON INCREMENTAL CRACK GROWTH DISTANCE OF PIPELINE 有权

    公开(公告)号：US20230029619A1

    公开(公告)日：2023-02-02

    申请号：US16979183

    申请日：2019-07-22

    申请人： CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)

    发明人： Yang DU ,  Wenchun JIANG ,  Fan ZHOU ,  Jinyang ZHENG ,  Chaojie WANG ,  Guoming CHEN

    IPC分类号： G01N3/313 ,  G01N29/12

    摘要： The present disclosure discloses a method for calculating an internal explosion load speed based on an incremental crack growth distance of a pipeline. The method includes steps of: respectively measuring at least three groups of distances between neighboring markings on forward and backward crack surfaces, and calculating the average values respectively to obtain the average incremental growth distances of forward and backward cracks; calculating the natural vibration frequency of the pipeline; and setting the ratio of backward crack speed to forward crack speed of the pipeline, then calculating the internal explosion load speed of the pipeline by a formula. The present disclosure provides a new effective method for calculating the internal explosion load speed based on the available parameters of the ruptured pipeline after explosion, which can provide a comparatively accurate estimation of internal explosion load speed, thereby providing references for inferring the explosion type occurred in the pipeline.

    Verification of garment properties using multiple test coupons
    7.
    发明授权
    Verification of garment properties using multiple test coupons 有权

    公开(公告)号：US09874505B2

    公开(公告)日：2018-01-23

    申请号：US14990848

    申请日：2016-01-08

    申请人： Phalanx Defense Systems, LLC

    发明人： James Coats

    IPC分类号： G01N3/313 ,  G01N3/30 ,  F41H1/02 ,  A41D27/20

    CPC分类号： G01N3/313 ,  A41D27/204 ,  F41H1/02 ,  G01N3/30

    摘要： Multiple test coupons are incorporated in the construction of a personal garment for the purpose of determining the presence of foreign substances acquired during garment use or a change in properties or other change in characteristics over time. Each of the test coupons is retained with the garment during the useful life of the garment until the coupon is individually removed for test purposes. Each test coupon has a construction identical to the garment construction and is easily removable and configured to allow for destructive testing. Sufficient multiple coupons are provided with each garment over its life to allow for periodic testing.

    Mechanical crush gauge and method of using same to measure free-field energy flux density
    9.
    发明授权
    Mechanical crush gauge and method of using same to measure free-field energy flux density 失效
    机械挤压计及其使用方法测量自由场能量通量密度

    公开(公告)号：US6131437A

    公开(公告)日：2000-10-17

    申请号：US941931

    申请日：1997-09-30

    申请人： Matthew J. Sanford

    发明人： Matthew J. Sanford

    IPC分类号： G01N3/30 ,  G01N3/313 ,  G01N3/48

    CPC分类号： G01N3/313 ,  G01N3/30 ,  G01N3/48 ,  G01N2203/0623

    摘要： A mechanical crush gauge has a housing defining a fixed diameter hole thatolds a sample of deformable material and an indentor having a flat end and a spherically-shaped end opposite the flat end. The indentor has its flat end flush with the surface of the housing and its spherically-shaped end in tangential contact with the sample. The indentor is made from a material having a yield strength orders of magnitude greater than that of the sample. Energy absorbed by the flat end is converted into kinetic energy that forces the spherically-shaped end against the sample to form a spherical dent therein indicative of energy flux density. In use, the diameter of the spherical dent is measured and converted to an energy value indicative of energy absorbed by the sample per unit area of the flat end of the indentor. The energy value is then calibrated by a correction factor that accounts for an acoustic impedance mismatch between the mechanical crush gauge and the medium of energy transmission in order to arrive at the free-field energy in the medium.

    摘要翻译： 机械挤压计具有限定固定直径孔的壳体，该孔保持可变形材料的样品和具有平坦端和与平坦端相对的球形端的压头。 压头的平坦端与壳体的表面齐平，并且其球形端与样品切向接触。 压头由具有比样品的屈服强度数量级大的数量级的材料制成。 由平端吸收的能量被转换成动能，其将球形端抵抗样品，以形成其中指示能量通量密度的球形凹陷。 在使用中，测量球形凹陷的直径并将其转换为指示由压头的平坦端的每单位面积的样品吸收的能量的能量值。 然后，能量值通过校正因子进行校准，该校正因子考虑到机械压溃表和能量传输介质之间的声阻抗失配，以便达到介质中的自由场能量。

    APPARATUS AND METHOD FOR TESTING COMBINED DYNAMIC-STATIC LOADING STRENGTH OF ROCK-LIKE MATERIAL
    10.
    发明申请
    APPARATUS AND METHOD FOR TESTING COMBINED DYNAMIC-STATIC LOADING STRENGTH OF ROCK-LIKE MATERIAL 有权

    公开(公告)号：US20230137003A1

    公开(公告)日：2023-05-04

    申请号：US17970592

    申请日：2022-10-21

    申请人： CHINA UNIVERSITY OF MINING AND TECHNOLOGY

    发明人： Lixiang XIE ,  Jiawan JIN ,  Chao CHEN

    IPC分类号： G01N3/313 ,  G01N33/24 ,  G01N3/06

    摘要： An apparatus and a method for testing combined dynamic-static loading strength of a rock-like material are provided. The apparatus and the method can test the combined dynamic-static loading strength of the rock-like material. The apparatus comprises an explosion load loading device, a static load loading device, and a stress wave rod transferring device. The explosion load loading device is connected with one end of the stress wave rod transferring device. The stress wave rod transferring device is connected with a rock-like material specimen. The stress wave rod transferring device is connected with the static load loading device.