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11. 发明授权

US5534289A Structural crack monitoring technique 失效
标题翻译：结构裂纹监测技术
公开(公告)号：US5534289A
公开(公告)日：1996-07-09
申请号：US367039
申请日：1995-01-03
申请人： Wayne H. Bilder , Richard D. Granata , Henry Leidheiser, Jr.
发明人： Wayne H. Bilder , Richard D. Granata , Henry Leidheiser, Jr.
IPC分类号： B05D5/00 , B05D5/06 , G01N3/00 , G01N3/06 , G01N19/08 , G01N21/91 , B05D3/00
CPC分类号： G01N21/91 , B05D5/00 , B05D5/06 , G01N19/08 , G01N2203/0064 , G01N2203/0652
摘要： A method is disclosed for monitoring a structure for the formation of cracks and for providing protection of the structure from the environment, including the following steps: applying to the structure a first coating comprising microcapsules of a first color, applying over the first coating, a second coating having a second color, and identifying cracked portions which form in the structure by observing changes in the color of the second coating resulting from eruption of microcapsules in the first coating.
摘要翻译：公开了一种用于监测形成裂纹的结构并提供对环境的保护的方法，包括以下步骤：向结构施加包含第一颜色的微胶囊的第一涂层，涂覆在第一涂层上，第二涂层具有第二颜色，并且通过观察由第一涂层中的微胶囊的喷发产生的第二涂层的颜色变化来识别在结构中形成的裂纹部分。

12. 发明授权

US3957450A Article of manufacture with pre-determined fatigue life 失效
标题翻译：具有预制疲劳寿命的制品
公开(公告)号：US3957450A
公开(公告)日：1976-05-18
申请号：US492859
申请日：1974-07-29
申请人： Trevor L. Salt
发明人： Trevor L. Salt
IPC分类号： G01N3/00 , B21K3/04
CPC分类号： G01N3/00 , G01N2203/0064 , Y10T428/12
摘要： Fatigue failure of an engineering article is primarily influenced by a natural inherent defect in the material from which the article is made. By an ability established to allocate a quantitative measure to such defect as a new material property influenced only by environment and material manufacturing procedures as are other basic properties, and using known methods for determining critical stress areas, a wide range of fatigue design data can be generated from a few basic measurements. Thus, from the deduction of a characteristic material defect length, there can be determined both a material's basic fatigue properties and the fatigue capability of the article for which the material is used.
摘要翻译：工程制品的疲劳破坏主要受制品制造的材料的天然固有缺陷的影响。通过建立一种将量化措施分配给诸如仅由环境和材料制造程序影响的新材料属性作为其他基本属性的定量测量的能力，并且使用已知的确定临界应力区域的方法，可以使用宽范围的疲劳设计数据从几个基本测量中产生。因此，从特征材料缺陷长度的扣除中，可以确定材料的基本疲劳性能和使用该材料的制品的疲劳性能。

13. 发明授权

US3397572A Device for measuring stressstrain curve 失效
标题翻译：用于测量应力应变曲线的装置
公开(公告)号：US3397572A
公开(公告)日：1968-08-20
申请号：US53255166
申请日：1966-03-01
申请人： WALTER A. STOLZ
发明人： LYNOTT STOLZ MARY ANN , KRAFFT JOSEPH M , BIRD FRANK W
IPC分类号： G01N3/08
CPC分类号： G01N3/08 , G01N2203/0064

14. 发明授权

US3353401A Method and apparatus for inducing fatigue cracks in structural materials 失效
标题翻译：在结构材料中引起疲劳裂纹的方法和装置
公开(公告)号：US3353401A
公开(公告)日：1967-11-21
申请号：US48178065
申请日：1965-08-23
申请人： THIOKOL CHEMICAL CORP
发明人： HESSLER RICHARD O
IPC分类号： G01N3/36
CPC分类号： G01N3/36 , G01N2203/0042 , G01N2203/0064

15. 发明公开

US20240102904A1 TEST ASSEMBLY AND METHOD OF TESTING AN ASSEMBLY FOR THERMAL FATIGUE 审中-公开
公开(公告)号：US20240102904A1
公开(公告)日：2024-03-28
申请号：US17952751
申请日：2022-09-26
申请人： Schaeffler Technologies AG & Co. KG
发明人： Tuo Luo
IPC分类号： G01N3/60
CPC分类号： G01N3/60 , G01N2203/0064 , G01N2203/0073 , G01N2203/0224
摘要： A method of testing a test specimen assembly is disclosed herein. The method can include providing the test specimen assembly which includes a control element and a test element, which are formed from different materials.

16. 发明申请

US20180010993A1 DROP WEIGHT TOWER FOR CRACK INITIATION IN FRACTURE MECHANICS SAMPLES 审中-公开
公开(公告)号：US20180010993A1
公开(公告)日：2018-01-11
申请号：US15545082
申请日：2016-07-08
申请人： SABIC Global Technologies, B.V.
发明人： Devendra Bajaj , David Kay
IPC分类号： G01N3/303
CPC分类号： G01N3/303 , G01N2203/0033 , G01N2203/006 , G01N2203/0064
摘要： Drop-weight tower (110) for reproducibly initiating a crack in a material sample for fracture mechanics testing comprising a base (120) with a top surface upon which a sample holder (124) is mounted to grip a material sample, an attachment column (140) having a linear rail (142), a carriage (162) attached to the linear rail (142) and a stage (164) is attached to the carriage. The stage (164) includes a vertical rod (184) and a razor-blade holder (178). A weight is slidably mounted to the vertical rod (184). The carriage is used to adjust the height of the stage (164) relative to the material sample. A hammer (180) slides up and down the vertical rod (184) to apply consistent and reproducible force on the razor (178) that then initiates the crack in the material sample.

17. 发明申请

US20150082855A1 METHOD OF PREPARING FORMING LIMIT DIAGRAM IN PRESS FORMING, METHOD FOR PREDICTING CRACK AND METHOD OF PRODUCING PRESS PARTS 审中-公开
标题翻译：制备压制成形限制图的方法，预测裂纹的方法和生产压力部件的方法
公开(公告)号：US20150082855A1
公开(公告)日：2015-03-26
申请号：US14394570
申请日：2012-04-16
申请人： Yusuke Fujii , Toyohisa Shinmiya , Yuji Yamasaki , Kazuhiko Higai
发明人： Yusuke Fujii , Toyohisa Shinmiya , Yuji Yamasaki , Kazuhiko Higai
IPC分类号： G01N3/06 , B21D22/00
CPC分类号： G01N3/06 , B21D22/00 , G01N3/08 , G01N3/28 , G01N2203/0064 , G01N2203/0066 , G06F17/5018 , G06F17/5086 , G06F2217/42
摘要： A method of preparing a forming limit diagram in press forming includes obtaining a forming limit curve by subjecting a surface of a metal plate to be press-formed to marking at a distance between reference points of 0.5-1.0 mm, bulging the metal plate with a punch having a top minimum curvature radius of 3-10 mm and measuring a maximum principal strain and minimum principal strain at a time of generating cracks on the surface of the metal plate at a top portion of the punch from a change of the marking.
摘要翻译：制备压制成型中的成形极限图的方法包括：通过对金属板的表面进行冲压成形以在0.5-1.0mm的参考点之间的距离进行标记来获得成形极限曲线，将金属板与冲头具有3-10mm的最小最小曲率半径，并且从标记的变化测量在冲头顶部处的金属板的表面上产生裂纹时的最大主应变和最小主应变。

18. 发明授权

US08479589B2 Method and apparatus for characterizing microscale formability of thin sheet materials 失效
标题翻译：表征薄片材料的微观成形性的方法和装置
公开(公告)号：US08479589B2
公开(公告)日：2013-07-09
申请号：US13229117
申请日：2011-09-09
申请人： Nasr A. Shuaib , Marwan K. Khraisheh
发明人： Nasr A. Shuaib , Marwan K. Khraisheh
IPC分类号： G01N19/08
CPC分类号： B21D22/20 , G01N3/28 , G01N2203/0023 , G01N2203/0064 , G01N2203/0254 , G01N2203/0282
摘要： A method of predicting sheet formability at a microscale level includes the steps of providing a grid pattern on a test sheet, bulging the test sheet to a hemispherical shape until a crack is initiated on the surface of the test sheet, detecting the initiation of the crack, acquiring two images of the surface adjacent to the crack and calculating surface strains on the test sheet.
摘要翻译：一种在微观级别预测片材成形性的方法包括以下步骤：在测试片上提供网格图案，将测试片材膨胀成半球形，直到在测试片材的表面上开始裂纹，检测裂纹的开始获取与裂纹相邻的表面的两个图像并计算测试片上的表面应变。

19. 发明申请

US20100162825A1 SYSTEM AND METHOD FOR MONITORING HEALTH OF STRUCTURAL JOINTS 失效
标题翻译：用于监测结构接头健康的系统和方法
公开(公告)号：US20100162825A1
公开(公告)日：2010-07-01
申请号：US12519243
申请日：2007-06-12
申请人： Baruch Karp , Daniel Rittel , David Durban
发明人： Baruch Karp , Daniel Rittel , David Durban
IPC分类号： G01N19/08
CPC分类号： G01M5/0066 , G01M5/0033 , G01N3/00 , G01N2203/0064 , G01N2203/021 , G01N2203/0218 , G01N2203/0244
摘要： The present invention provides a system and a method monitoring the health of structural joints by monitoring the strain developed near the joint due to perturbation applied away from that joint and comparing the monitored strain to strain which develops in a healthy joint due to comparable perturbation. The system for monitoring joints comprises: at least one near field strain measuring device installed near a monitored joint for monitoring the induced strain; at least one far field strain indicating device installed away from monitored joint indicating, measuring or producing the perturbation; and a data processor connected to said near field strain measuring device and to said near field strain measuring device for analyzing the response of the structure to the perturbation and determining the integrity of said joint. The method may also be used for detection and monitoring of off-joint crack initiation and edge delamination in composites.
摘要翻译：本发明提供了一种系统和方法，通过监测由接头施加的扰动引起的接头附近产生的应变，并将监测的应变与由于可比较的扰动在健康关节中产生的应变进行比较来监测结构关节的健康。用于监测关节的系统包括：至少一个近场应变测量装置，安装在监控关节附近，用于监测诱发的应变; 至少一个远场应变指示装置远离被监视的关节，指示，测量或产生扰动; 以及连接到所述近场应变测量装置和所述近场应变测量装置的数据处理器，用于分析所述结构对所述扰动的响应并确定所述接头的完整性。该方法还可用于检测和监测复合材料中脱接开裂和边缘分层。

20. 发明申请

US20090048788A1 Rapid determination of fatigue failure based on temperature evolution 有权
标题翻译：基于温度演化快速测定疲劳失效
公开(公告)号：US20090048788A1
公开(公告)日：2009-02-19
申请号：US12221103
申请日：2008-07-31
申请人： Mehdi Amiri Darehbidi , Michael M. Khonsari
发明人： Mehdi Amiri Darehbidi , Michael M. Khonsari
IPC分类号： G06F19/00
CPC分类号： G01N3/32 , C21D11/00 , G01N25/72 , G01N2203/0064 , G01N2203/0066 , G01N2203/0222 , G01N2203/0647 , G01N2203/0694
摘要： A method and apparatus are disclosed for predicting the service life of a metallic structure subjected to cyclic loading. Such structures experience fatigue, which can lead to failure after a number of loading cycles. The disclosed invention allows for an accurate prediction of the number of cycles to failure for a metallic structure by observing the slope of the rise in surface temperature of the structure after the cyclic loading has begun. The method of this invention provides early and accurate predictions of service life and does not require destructive testing. The method and apparatus of the present invention may be installed on working equipment, thus providing service life predictions for materials in real world use. The invention uses an empirically derived relationship that was confirmed using analytical relationships and material properties. The derived formula uses two constants that may be determined empirically using a disclosed process. The constants also may be estimated mathematically. The apparatus may include a wireless temperature sensor mounted on the metallic structure of interest and a data analysis unit to perform the needed calculations.
摘要翻译：公开了一种用于预测经受循环加载的金属结构的使用寿命的方法和装置。这种结构经历疲劳，这可能导致多次加载循环后的故障。所公开的发明允许通过观察在循环加载开始之后的结构的表面温度的上升的斜率来精确地预测金属结构的失效循环次数。本发明的方法提供了对使用寿命的早期和准确预测，并且不需要破坏性测试。本发明的方法和装置可以安装在工作设备上，从而为现实世界中的材料提供使用寿命预测。本发明使用经验导出的关系，其使用分析关系和材料性质确认。派生公式使用可以使用公开的过程凭经验确定的两个常数。常数也可以用数学估算。该装置可以包括安装在感兴趣的金属结构上的无线温度传感器和用于执行所需的计算的数据分析单元。

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