公开(公告)号：EP0027257B1

公开(公告)日：1983-08-17

申请号：EP80106120.1

申请日：1980-10-09

申请人： VALTION TEKNILLINEN TUTKIMUSKESKUS

发明人： Sirkkola, Erkki ,  Kotilainen, Heikki

IPC分类号： G01N3/30

CPC分类号： G01N3/30 ,  G01N2203/0039 ,  G01N2203/027

公开(公告)号：EP3379231A3

公开(公告)日：2018-10-03

申请号：EP17197651.7

申请日：2017-10-20

申请人： Bell Helicopter Textron Inc.

发明人： LEE, Wei-Yueh ,  BURNETT, Michael ,  DEARMAN, Michael

IPC分类号： G01N3/02 ,  G01M5/00 ,  G01N3/04 ,  G01N3/08 ,  B29C70/32 ,  B29C70/34 ,  B29C70/38 ,  B29C70/54 ,  B29C70/56 ,  B29C70/08 ,  B29C70/30

CPC分类号： G01N3/08 ,  B29C70/30 ,  B29C70/32 ,  B29C70/545 ,  B29C70/56 ,  B29K2913/00 ,  B29L2023/22 ,  G01M5/0033 ,  G01M5/0058 ,  G01N3/02 ,  G01N3/04 ,  G01N3/22 ,  G01N2203/0017 ,  G01N2203/0066 ,  G01N2203/0096 ,  G01N2203/0266 ,  G01N2203/027 ,  G01N2203/0274 ,  G01N2203/0298 ,  G06F17/5018

摘要： There is a method of making a tubular specimen (314) with a predetermined wrinkle defect including providing (301) a layup tool (302) with a cavity forming member (302m) having a cavity (302c) which resembles a desired shape of the at least one wrinkle; orienting (303) a composite material around the mandrel at a wrap angle to form a closed loop; positioning (305) a wrinkle tool (306) on the closed loop; and/or generating at least one wrinkle with a predetermined characteristic in a portion of the closed loop to form a tubular specimen (314). The predetermined characteristic is at least one of the following: wrinkle location, an outward wrinkle, an inward wrinkle, a wrinkle width, a wrinkle height, and a wrinkle length. In another aspect, there is a method of offset load testing a tubular composite specimen (334). In a third aspect, there is a method (400) of determining allowable defects for a composite component.

公开(公告)号：EP3379231A2

公开(公告)日：2018-09-26

申请号：EP17197651.7

申请日：2017-10-20

申请人： Bell Helicopter Textron Inc.

发明人： LEE, Wei-Yueh ,  BURNETT, Michael ,  DEARMAN, Michael

IPC分类号： G01N3/02 ,  G01M5/00 ,  G01N3/04 ,  G01N3/08 ,  B29C70/32 ,  B29C70/34 ,  B29C70/38 ,  B29C70/54 ,  B29C70/56 ,  B29C70/08 ,  B29C70/30

CPC分类号： G01N3/08 ,  B29C70/30 ,  B29C70/32 ,  B29C70/545 ,  B29C70/56 ,  B29K2913/00 ,  B29L2023/22 ,  G01M5/0033 ,  G01M5/0058 ,  G01N3/02 ,  G01N3/04 ,  G01N3/22 ,  G01N2203/0017 ,  G01N2203/0066 ,  G01N2203/0096 ,  G01N2203/0266 ,  G01N2203/027 ,  G01N2203/0274 ,  G01N2203/0298 ,  G06F17/5018

摘要： There is a method of making a tubular specimen (314) with a predetermined wrinkle defect including providing (301) a layup tool (302) with a cavity forming member (302m) having a cavity (302c) which resembles a desired shape of the at least one wrinkle; orienting (303) a composite material around the mandrel at a wrap angle to form a closed loop; positioning (305) a wrinkle tool (306) on the closed loop; and/or generating at least one wrinkle with a predetermined characteristic in a portion of the closed loop to form a tubular specimen (314). The predetermined characteristic is at least one of the following: wrinkle location, an outward wrinkle, an inward wrinkle, a wrinkle width, a wrinkle height, and a wrinkle length. In another aspect, there is a method of offset load testing a tubular composite specimen (334). In a third aspect, there is a method (400) of determining allowable defects for a composite component.

公开(公告)号：EP3379230A2

公开(公告)日：2018-09-26

申请号：EP17197650.9

申请日：2017-10-20

申请人： Bell Helicopter Textron Inc.

发明人： BURNETT, Michael ,  LEE, Wei-Yueh ,  DEARMAN, Michael

IPC分类号： G01N3/02 ,  G01M5/00 ,  G01N3/04 ,  G01N3/08 ,  B29C70/32 ,  B29C70/34 ,  B29C70/38 ,  B29C70/54 ,  B29C70/56 ,  B29C70/08 ,  B29C70/30 ,  B29C70/36

CPC分类号： B29C70/56 ,  B29C70/30 ,  B29C70/32 ,  B29C70/545 ,  B29K2105/256 ,  G01M5/0033 ,  G01M5/0058 ,  G01N3/02 ,  G01N3/04 ,  G01N3/08 ,  G01N2203/0017 ,  G01N2203/0066 ,  G01N2203/0096 ,  G01N2203/0266 ,  G01N2203/027 ,  G01N2203/0274 ,  G01N2203/0298 ,  G06F17/5018

摘要： In a first aspect, there is a method (300) of making a specimen with a predetermined wrinkle defect, the steps including orienting (303) a composite material around a layup tool (302) at a wrap angle to form a closed loop; and generating (309) at least one wrinkle with a predetermined characteristic in a portion of the closed loop to form a specimen. The predetermined characteristic is at least one of the following: wrinkle location, an outward wrinkle, an inward wrinkle, a wrinkle width, a wrinkle height, and a wrinkle length. In another aspect, there is a method (400) of determining allowable defects for a composite component.

公开(公告)号：EP2283338B1

公开(公告)日：2017-08-02

申请号：EP08874320.8

申请日：2008-11-24

申请人： TA Instruments-Waters LLC

发明人： OWENS, Aaron M. ,  DINGMANN, David L. ,  NICKEL, Troy D. ,  SEEMAN, Steven R.

IPC分类号： G01N3/04

CPC分类号： G01N3/32 ,  G01N2203/0222 ,  G01N2203/0242 ,  G01N2203/027 ,  G01N2203/0435 ,  G01N2203/0447 ,  G01N2203/0476

公开(公告)号：EP1607731B1

公开(公告)日：2015-07-22

申请号：EP05253053.2

申请日：2005-05-18

申请人： Rolls-Royce plc

发明人： Petrinic, Nikica ,  Ruiz, Carlos

IPC分类号： G01N3/00 ,  G01N3/313 ,  G01N3/12 ,  G01N3/317 ,  G01N3/307

CPC分类号： G01N3/317 ,  G01N3/12 ,  G01N3/307 ,  G01N3/313 ,  G01N2203/001 ,  G01N2203/0048 ,  G01N2203/0232 ,  G01N2203/027 ,  G01N2203/0282 ,  G01N2203/0641 ,  G01N2203/0647 ,  G01N2203/0682

公开(公告)号：EP2893318A1

公开(公告)日：2015-07-15

申请号：EP13766601.2

申请日：2013-08-30

申请人： SNECMA ,  Turbomeca ,  Centre National de la Recherche Scientifique (CNRS) ,  Ecole Normale Superieure De Cachan

发明人： MARY, Caroline ,  CLUZEL, Christophe ,  DE MOURA PINHO, Raul, Fernando ,  LONGUET, Arnaud ,  POMMIER, Sylvie ,  VOGEL, François

IPC分类号： G01N3/38 ,  G01N3/32 ,  G01M7/02

CPC分类号： G01N3/32 ,  G01M5/0016 ,  G01M5/0033 ,  G01M5/0066 ,  G01M5/0075 ,  G01M7/027 ,  G01N3/38 ,  G01N29/043 ,  G01N2203/0005 ,  G01N2203/0066 ,  G01N2203/0073 ,  G01N2203/027 ,  G01N2291/0258 ,  G01N2291/2693

摘要： A high frequency method for determining the non-propagation threshold of fatigue cracks in which a cyclic load (32, 32A) is applied to at least one test piece comprising, in a test area (10A), an elliptical hole (12) having a notch (14) at one apex, and held between two rigid masses (24, 26), two rigid prestressing plates (20, 22) being disposed on either side of said test piece and being secured at each of the two ends (20A, 22A; 20B, 22B) of same to the two rigid masses, the frequency of the cyclic load (32, 32A) being chosen as equal to the natural frequency of the test piece/masses/prestressing plates assembly so as to generate a fatigue crack from the notch; then, when it is observed that the crack has stopped propagating, the final length of the crack is recorded, and said non-propagation threshold ΔK
th of the fatigue crack is determined using a table, the cyclic load being obtained by a vibrating electrodynamic pot integrally attached by means of rigid posts to a frame supporting the two rigid masses and comprising a push rod to transmit said cyclic load to the test piece/masses/prestressing plates assembly.

公开(公告)号：EP2883033A1

公开(公告)日：2015-06-17

申请号：EP13745421.1

申请日：2013-08-06

申请人： Commissariat à l'Énergie Atomique et aux Énergies Alternatives

发明人： ROUNTREE, Cindy ,  BONAMY, Daniel

IPC分类号： G01N3/60

CPC分类号： G01N3/08 ,  G01N3/60 ,  G01N2203/0067 ,  G01N2203/027

摘要： The invention relates to a method for measuring the tenacity K
c of a material, comprising the following steps: placing a sample of said material, having the shape of a parallelepiped rectangle through the middle of which a central hole extends, between two jaws of a clamping device, each of said jaws engaging with a distant end of the sample; moving the two jaws together so as to exert a force at each of said ends until the sample has completely broken; measuring the variations during the clamping on the basis of the time of the clamping force exerted at each end of the sample; determining the maximum value F
0 of said clamping force; marking three separate areas on the surface of one of the breaking surfaces, i.e. a first area close to the hole having a first type of embossment, a second area having a second type of embossment, and a third area having a third type of embossment that is less pronounced than the second type; measuring the distance L
0 between the edge of the hole and a transition line separating the second area from the third area; and calculating the parameter K
c on the basis of the force F
0 and distance L
0 .

公开(公告)号：EP2662682A2

公开(公告)日：2013-11-13

申请号：EP13162440.5

申请日：2013-04-05

申请人： Rolls-Royce plc

发明人： Leggett, Andrew ,  Gibson, Grant

IPC分类号： G01N3/34

CPC分类号： G01N3/32 ,  G01N3/34 ,  G01N17/006 ,  G01N2203/0016 ,  G01N2203/0017 ,  G01N2203/0073 ,  G01N2203/0224 ,  G01N2203/0226 ,  G01N2203/024 ,  G01N2203/027

摘要： A method of fatigue testing a component comprising the steps of machining a channel of predetermined depth and predetermined width in a surface of a component, applying a salt solution into the channel in the surface of the component and heating the component to a suitable temperature to evaporate the solvent from the salt solution to deposit the salt in the channel in the surface of the component, placing the component in an atmosphere containing air and sulphur dioxide at a predetermined temperature for a predetermined period of time to precondition the grain boundaries, and fatigue testing the component. The method is useful for determining the fatigue life of gas turbine engine discs or gas turbine engine rotor blades particularly the firtree shaped disc posts or the firtree shaped rotor blade roots.

摘要翻译： 一种对部件进行疲劳试验的方法，包括以下步骤：在组件的表面中加工预定深度和预定宽度的通道，将盐溶液施加到部件表面中的通道中，并将组件加热到合适的温度以蒸发 来自盐溶液的溶剂将盐沉积在组分表面的通道中，将组分置于含有空气和二氧化硫的气氛中在预定温度下预定的时间段以预处理晶界，并进行疲劳测试 组件。 该方法对于确定燃气涡轮发动机盘片或燃气涡轮发动机转子叶片的疲劳寿命是有用的，特别是保持架状的盘柱或翼形的转子叶片根部。

公开(公告)号：EP2440906A1

公开(公告)日：2012-04-18

申请号：EP10725323.9

申请日：2010-05-28

申请人： Bose Corporation

发明人： NICKEL, Troy, D. ,  DINGMANN, David, Louis ,  HANSON, Mark

IPC分类号： G01N3/12

CPC分类号： G01N3/12 ,  G01N2203/0048 ,  G01N2203/0242 ,  G01N2203/027 ,  G01N2203/0274 ,  Y10T436/2575

摘要： A sample testing system includes a plurality of sample tubes, each sample tube coupled to a pumping chamber, a pressure control subsystem and a flow control subsystem. The pressure control system includes a first dynamic pump equipped to induce pulsatile pressure in a mass of pumping fluid coupled to the pumping chambers. The flow control subsystem includes a mean flow pump equipped to generate a flow of sample fluid in a plurality of flow loops. Each of the flow loops conducts the flow of sample fluid between the mean flow pump and one of the sample tubes. The pumping chamber couples pressure from the pumping fluid to the sample fluid.

摘要翻译： 样品测试系统包括多个样品管，每个样品管耦合到泵送室，压力控制子系统和流量控制子系统。 压力控制系统包括第一动力泵，其被配置成在耦合到泵送室的泵送流体中引起脉动压力。 流量控制子系统包括装备成在多个流动回路中产生样品流体流的平均流量泵。 每个流动回路在平均流量泵和一个样品管之间传导样品流体的流动。 泵送室将来自泵送流体的压力耦合到样品流体。