公开(公告)号：EP3045888A1

公开(公告)日：2016-07-20

申请号：EP15275007.1

申请日：2015-01-13

申请人： BAE Systems PLC

发明人： The designation of the inventor has not yet been filed

IPC分类号： G01M5/00 ,  G01N3/06 ,  G01B11/16 ,  G01N21/88

CPC分类号： G01M5/0091 ,  G01B11/16 ,  G01M5/0033 ,  G01M5/005 ,  G01N3/068 ,  G01N2021/8887 ,  G01N2203/006

摘要： Disclosed is a method of assessing a structural defect presence in a structure, the method comprising the steps of: determining at least one critical damage strain value of the structure, capturing a first image of a surface of the structure under a first loading condition; capturing a second image of the surface of the structure under a second loading condition; assigning a position matrix on the captured first image; obtaining a deformation matrix comprising a deformation value at each position of the position matrix by using an image correlation technique on the first and second images, and by comparing deformation of corresponding parts of the surface captured therein; calculating a strain matrix using the obtained deformation matrix; and determining a micro-crack to be present at a position if an element of the strain matrix representing the strain at the position is greater than or equal to a predetermined critical damage strain value, wherein the critical damage strain value is a strain value at which a micro-crack is detected or predicted to appear and/or propagate.

摘要翻译： 公开了一种评估结构中的结构缺陷存在的方法，所述方法包括以下步骤：确定所述结构的至少一个临界损伤应变值，在第一加载条件下捕获所述结构的表面的第一图像; 在第二加载条件下捕获所述结构的表面的第二图像; 在所捕获的第一图像上分配位置矩阵; 通过在第一和第二图像上使用图像相关技术获得包括位置矩阵的每个位置处的变形值的变形矩阵，并且通过比较在其中捕获的表面的相应部分的变形; 使用获得的变形矩阵计算应变矩阵; 以及如果表示所述位置处的应变的应变矩阵的元素大于或等于预定临界损伤应变值，则确定存在于位置处的微裂纹，其中所述临界损伤应变值是应变值，在该应变值处 检测或预测微裂纹出现和/或传播。

公开(公告)号：EP1985989A4

公开(公告)日：2015-07-08

申请号：EP07707897

申请日：2007-02-01

申请人： NIPPON STEEL & SUMITOMO METAL CORP

发明人： YONEMURA SHIGERU ,  UENISHI AKIHIRO ,  HIWATASHI SHUNJI ,  YOSHIDA HIROSHI ,  YOSHIDA TOHRU

IPC分类号： G01N3/00 ,  G06F17/50

CPC分类号： G01N3/00 ,  G01N2203/006 ,  G06F17/5018 ,  G06F17/5095

公开(公告)号：EP1656546B1

公开(公告)日：2008-05-14

申请号：EP04767794.3

申请日：2004-07-27

申请人： Electricité de France

发明人： ROUSSELIER, Gilles ,  LECLERCQ, Sylvain

IPC分类号： G01N3/00

CPC分类号： G01N3/40 ,  G01N2203/0019 ,  G01N2203/006 ,  G01N2203/0071 ,  G01N2203/0075

摘要： The invention relates to a method for determining the effects of a mechanical force on an object consisting of a solid material, according to which the deformations and stresses caused by the mechanical force at a plurality of points on the object are determined by means of a digital calculation method in an anelastic mode wherein the behaviour of the material is represented by a polycrystalline microscopic behaviour model using a maximum of ten grain blocks, the deformations of said grain blocks being determined from a maximum of six sliding systems, and optionally a maximum of seven grain joint blocks, the deformations of said grain joint blocks being determined from at least one system and a maximum of one hole block having a variable volumic fraction, the plastic deformations of said hole block being purely volumic.

公开(公告)号：EP2720025B1

公开(公告)日：2016-04-20

申请号：EP13187974.4

申请日：2013-10-09

申请人： ThyssenKrupp Steel Europe AG

发明人： Hinz, Martin

IPC分类号： G01N19/04 ,  G01N3/00 ,  B23K11/10

CPC分类号： G01N3/00 ,  B23K11/10 ,  G01N19/04 ,  G01N2203/006 ,  G01N2203/0218 ,  G01N2203/0296

公开(公告)号：EP1326069B1

公开(公告)日：2007-12-12

申请号：EP01969815.8

申请日：2001-09-14

申请人： CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS ,  Iberdrola

发明人： SACEDON ADELANTADO, José, Luis ,  SANTAMERA GAGO, Eduardo ,  DIAZ MUNOZ, Marcos ,  MOYA CORRAL, José, Serafin ,  ROMAN GARC A, Elisa ,  PEREZ RAMIREZ, Angel, Samuel, Lab. de Materiales ,  REMARTINEZ ZATO, Begona, Laboratorio de Materiales

IPC分类号： G01N15/08

CPC分类号： G01N7/10 ,  G01N15/0826 ,  G01N2203/006 ,  G01N2203/0226

摘要： The method involves measuring hydrogen permeation in the tubes by mass spectrometry, wherein the tube is inserted into a high or ultrahigh vacuum device in which a mass spectrometer and a total pressure gauge are located. H2 or H2 and inert gas mixtures are circulated inside the tube at the required partial pressure. The tube is then heated and the appearance of H2 outside the tube is observed. The flow thereof inside the tube and its emergence time, called permeation time, are determined based on permeation curves. The emergence time of the first microcrack is also determined.

公开(公告)号：EP1326069A1

公开(公告)日：2003-07-09

申请号：EP01969815.8

申请日：2001-09-14

申请人： CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS ,  Iberdrola

发明人： SACEDON ADELANTADO, José, Luis ,  SANTAMERA GAGO, Eduardo ,  DIAZ MUNOZ, Marcos ,  MOYA CORRAL, José, Serafin ,  ROMAN GARC A, Elisa ,  PEREZ RAMIREZ, Angel, Samuel, Lab. de Materiales ,  REMARTINEZ ZATO, Begona, Laboratorio de Materiales

IPC分类号： G01N15/08

CPC分类号： G01N7/10 ,  G01N15/0826 ,  G01N2203/006 ,  G01N2203/0226

摘要： The method involves measuring hydrogen permeation in the tubes by mass spectrometry, wherein the tube is inserted into a high or ultrahigh vacuum device in which a mass spectrometer and a total pressure gauge are located. H 2 or H 2 and inert gas mixtures are circulated inside the tube at the required partial pressure. The tube is then heated and the appearance of H 2 outside the tube is observed. The flow thereof inside the tube and its emergence time, called permeation time, are determined based on permeation curves. The emergence time of the first microcrack is also determined.

摘要翻译： 该方法包括测量通过质谱法的管，worin管被插入到高或超高真空装置，其中质谱仪和共压力计位于氢渗透。 H 2或H 2和惰性气体混合物在所要求的分压在管内循环。 该管然后被加热和H 2的管外的外观观察。 该管在其内部的流动和它的出现时间，称为渗透时间，是确定性的开采基于渗透曲线。 第一微裂纹的出现时间是如此确定的开采。

公开(公告)号：EP3147644B1

公开(公告)日：2018-11-14

申请号：EP16176675.3

申请日：2016-06-28

申请人： The Boeing Company

发明人： SWEET, William J. ,  HOUSEN, Kevin R. ,  DAMAZO, Jason Scott ,  DAY, Arthur C.

IPC分类号： G01N3/313

CPC分类号： G01N3/02 ,  B29C33/123 ,  B29C39/10 ,  B29K2705/00 ,  B64D37/32 ,  G01M7/08 ,  G01N3/313 ,  G01N3/317 ,  G01N19/04 ,  G01N27/028 ,  G01N2203/006

摘要： Embodiments described herein provide apparatus and a method for simulating a mechanical stress applied to a sealant (206) from a lightning strike upon an aircraft. One embodiment comprises a specimen (204), a test fixture (210), and a capacitor (212). The specimen (204) comprises an electrically non-conductive sealant (206) for an aircraft fuel tank having a cylindrical shape, and an electrically conductive wire (208) centered axially within the sealant (206). The test fixture (210) secures the specimen (204) during testing. The capacitor (212) is electrically coupled to the test fixture (210), and simulates a lightning strike upon the aircraft by vaporizing the wire (208) with a current to generate a mechanical shock to the sealant (206).

公开(公告)号：EP1985989A1

公开(公告)日：2008-10-29

申请号：EP07707897.0

申请日：2007-02-01

申请人： Nippon Steel Corporation

发明人： YONEMURA, Shigeru ,  UENISHI, Akihiro ,  HIWATASHI, Shunji ,  YOSHIDA, Hiroshi ,  YOSHIDA, Tohru

IPC分类号： G01N3/00

CPC分类号： G01N3/00 ,  G01N2203/006 ,  G06F17/5018 ,  G06F17/5095

摘要： Using a fracture limit stress line obtained by converting a hole expansion ratio into a stress as a criterion for a fracture, the risk of fracture in a material is evaluated quantitatively by comparing the relationship between data obtained from a numerical analysis using a finite element method and the fracture limit stress line. Thus, when determining a fracture limit in a stretch flange portion in a thin plate in a process including one or more deformation path variations, it is possible to obtain the fracture limit curve easily and efficiently and predict the fracture with high accuracy, and the risk of fracture upon press forming or crash can be evaluated.

摘要翻译： 使用通过将孔膨胀比转换为应力作为断裂的标准而获得的断裂极限应力线，通过比较使用有限元法的数值分析获得的数据与 断裂极限应力线。 因此，当在包括一个或多个变形路径变化的过程中确定薄板中的拉伸凸缘部分的断裂极限时，可以容易且有效地获得断裂极限曲线并且高精度地预测断裂，并且风险 可以评估压制成型或碰撞时的断裂。

公开(公告)号：EP1748371A1

公开(公告)日：2007-01-31

申请号：EP06015519.9

申请日：2006-07-25

申请人： DENSO CORPORATION

发明人： Umeda, Atsushi, c/o Denso Corporation ,  Shiga, Tsutomu, c/o Denso Corporation ,  Ihata, Kouichi, c/o Denso Corporation

IPC分类号： G06F17/50

CPC分类号： F16C19/00 ,  G01M13/04 ,  G01N2203/0039 ,  G01N2203/006 ,  G01N2203/0067 ,  G01N2203/0098 ,  G01N2203/0212 ,  G01N2203/0218 ,  G01N2203/0222 ,  G01N2203/0226 ,  G01N2203/0228 ,  G06F17/50 ,  Y02T10/82

摘要： A method of designing a roller bearing is disclosed upon clarifying mechanisms of damage patterns in respect of two kinds of brinelling, involved in the bearing, wherein white-banded flaking (brittle flaking) is a plastic instability phenomenon appearing under high-speed deformation accompanied by adiabatic shear deformation status with the resultant occurrence of adiabatic shear band (also called white band) inside material of the bearing. This enables all of the damage patterns to be determined upon making comparison between shear strain and shear strain rate, occurring inside the bearing, and discriminated values.

摘要翻译： 公开了一种设计滚子轴承的方法，其中阐述了涉及轴承的两种布氏体的损伤图案的机理，其中白带剥落（脆性剥落）是伴随着高速变形出现的塑性不稳定现象 绝热剪切变形状态与轴承材料内部绝热剪切带（也称为白色带）的产生。 通过比较在轴承内部产生的剪切应变和剪切应变速率以及鉴别值，可以确定所有损伤图案。

公开(公告)号：EP3320324A1

公开(公告)日：2018-05-16

申请号：EP16748382.5

申请日：2016-07-08

申请人： SABIC Global Technologies B.V. ,  Kay, David

发明人： KAY, David ,  BAJAJ, Devendra

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.