DE102015207585A1 - Shear frame for testing semi-finished products from or for a fiber composite material - Google Patents
Shear frame for testing semi-finished products from or for a fiber composite material Download PDFInfo
- Publication number
- DE102015207585A1 DE102015207585A1 DE102015207585.0A DE102015207585A DE102015207585A1 DE 102015207585 A1 DE102015207585 A1 DE 102015207585A1 DE 102015207585 A DE102015207585 A DE 102015207585A DE 102015207585 A1 DE102015207585 A1 DE 102015207585A1
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- Germany
- Prior art keywords
- frame
- joints
- joint
- semi
- frame legs
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000011265 semifinished product Substances 0.000 title claims abstract description 66
- 238000012360 testing method Methods 0.000 title claims abstract description 23
- 239000002131 composite material Substances 0.000 title claims abstract description 17
- 239000000835 fiber Substances 0.000 title claims abstract description 17
- 238000010008 shearing Methods 0.000 claims description 8
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 230000008878 coupling Effects 0.000 description 9
- 238000010168 coupling process Methods 0.000 description 9
- 238000005859 coupling reaction Methods 0.000 description 9
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 1
- 238000004154 testing of material Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/007—Subject matter not provided for in other groups of this subclass by applying a load, e.g. for resistance or wear testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0003—Composite materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0025—Shearing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0278—Thin specimens
- G01N2203/0282—Two dimensional, e.g. tapes, webs, sheets, strips, disks or membranes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/36—Textiles
- G01N33/367—Fabric or woven textiles
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
Scherrahmen (1) zur Prüfung von Halbzeugen (10) aus einem oder für einen Faserverbundwerkstoff, mit mehreren Rahmenschenkeln (2, 3, 4, 5), an welchen ein zu prüfendes Halbzeug (10) spannbar ist, wobei benachbarte Enden (2a, 3a; 3b, 4b; 4a, 5a; 4b, 5b) der Rahmenschenkel (2, 3, 4, 5) über Gelenke (6, 7, 8, 9) gelenkig miteinander verbunden sind, und wobei die Gelenke (6, 7, 8, 9), über welche die jeweils benachbarten Enden (2a, 3a; 3b, 4b; 4a, 5a; 4b, 5b) der Rahmenschenkel (2, 3, 4, 5) gelenkig miteinander verbunden sind, zur individuellen Einstellung eines Offsets zwischen den Gelenken (6, 7, 8, 9) und Spannkanten (10c) des Halbzeugs (10) relativ zu den Rahmenschenkeln (2, 3, 4, 5) verlagerbar sind.Shear frame (1) for testing semi-finished products (10) from one or a fiber composite material, with a plurality of frame legs (2, 3, 4, 5) to which a semifinished product (10) to be tested can be tensioned, wherein adjacent ends (2a, 3a 3b, 4b, 4a, 5a, 4b, 5b) of the frame legs (2, 3, 4, 5) are articulated to one another via joints (6, 7, 8, 9), and wherein the joints (6, 7, 8 , 9), via which the respectively adjacent ends (2a, 3a, 3b, 4b, 4a, 5a, 4b, 5b) of the frame legs (2, 3, 4, 5) are hinged together for individual adjustment of an offset between the Joints (6, 7, 8, 9) and clamping edges (10c) of the semifinished product (10) relative to the frame legs (2, 3, 4, 5) are displaceable.
Description
Die Erfindung betrifft einen Scherrahmen zur Prüfung von Halbzeugen aus einem Faserverbundwerkstoff oder von Halbzeugen für einen Faserverbundwerkstoff. The invention relates to a shear frame for testing semi-finished products made of a fiber composite material or semi-finished products for a fiber composite material.
Aus der Praxis sind Scherrahmen bekannt, mit Hilfe derer Halbzeuge einem Test bzw. einer Materialprüfung oder Eigenschaftsprüfung unterzogen werden können. Dann, wenn es sich bei den Halbzeugen um Halbzeuge aus einem oder für einen Faserverbundwerkstoff handelt, können die Halbzeuge mit Hilfe eines Scherrahmens einer Drapierfähigkeitsprüfung unterzogen werden. From practice shear frames are known, with the aid of which semi-finished products can be subjected to a test or a material test or property test. Then, if the semi-finished products are semi-finished products made of or for a fiber composite material, the semi-finished products can be subjected to a drape capability test with the aid of a shearing frame.
Aus der Praxis bekannte Scherrahmen verfügen über Rahmenschenkel, die an benachbarten Enden gelenkig miteinander verbunden sind, wobei an den Rahmenschenkeln des Scherrahmens ein zu prüfendes Halbzeug spannbar ist. Durch Aufbringen einer definierten Kraft an vorzugsweise zwei Gelenken des Scherrahmens kann das Halbzeug zur Materialprüfung bzw. Eigenschaftsprüfung, insbesondere zur Drapierfähigkeitsprüfung, mit einer definierten Belastung beaufschlagt werden. Shear frames known from practice have frame legs which are hingedly connected to one another at adjacent ends, wherein a semifinished product to be tested can be tensioned on the frame legs of the shearing frame. By applying a defined force to preferably two joints of the shear frame, the semifinished product for material testing or property testing, in particular for Drapierfähigkeitsprüfung be subjected to a defined load.
Zur Drapierfähigkeitsprüfung von Halbzeugen aus einem oder für einen Faserverbundwerkstoff ist es von Bedeutung, auf das Halbzeug die Prüfbelastung exakt definiert einzubringen. Dies ist mit aus der Praxis bekannten Scherrahmen nur unzureichend möglich. For Drapierfähigkeitsprüfung of semi-finished products from one or for a fiber composite material, it is important to introduce the test load exactly defined on the semifinished product. This is only inadequately possible with known from practice shear frame.
Es besteht daher Bedarf an einem neuartigen Scherrahmen, mit Hilfe dessen Halbzeuge aus einem oder für einen Faserverbundwerkstoff vorteilhaft geprüft werden können, insbesondere vorteilhaft einer Drapierfähigkeitsprüfung unterzogen werden können. There is therefore a need for a novel shearing frame with the aid of which semi-finished products can be advantageously tested from or for a fiber composite material, in particular advantageously subjected to a drapability test.
Hiervon ausgehend liegt der Erfindung die Aufgabe zu Grunde, einen neuartigen Scherrahmen zur Prüfung von Halbzeugen aus einem oder für einen Faserverbundwerkstoff zu schaffen. On this basis, the invention is based on the object to provide a novel shear frame for testing semi-finished products from or for a fiber composite material.
Diese Aufgabe wird durch einen Scherrahmen zur Prüfung von Halbzeugen aus einem oder für einen Faserverbundwerkstoff gemäß Patentanspruch 1 gelöst. This object is achieved by a shear frame for testing semi-finished products from or for a fiber composite material according to
Erfindungsgemäß sind die Gelenke, über welche die benachbarten Enden der Rahmenschenkel gelenkig miteinander verbunden sind, zur individuellen Einstellung eines Offsets zwischen den Gelenken und Spannkanten des Halbzeugs, insbesondere zur individuellen Einstellung eines Offsets zwischen Gelenkpunkten der Gelenke und Schnittpunkten der Spannkanten des Halbzeugs im Bereich der Gelenke, verlagerbar ausgebildet. Erfindungsgemäß ist beim Scherrahmen ein Offset zwischen den Gelenken der Rahmenschenkeln und den Spannrändern bzw. Spannkanten des Halbzeugs durch Verlagerung der Gelenke relativ zu den Rahmenschenkeln individuell einstellbar. Der Offset zwischen den Gelenken, über welche benachbarte Enden der Rahmenschenkel gelenkig miteinander verbunden sind, und den Spannkanten im Bereich der Gelenke bestimmt, wie die über den Scherrahmen aufgebrachte Prüfbelastung in das zu prüfende Halbzeug eingebracht wird bzw. sich in demselben verteilen. Über die Offseteinstellung ist eine individuelle, exakt definierte Prüfung von Halbzeugen aus einem oder für einen Faserverbundwerkstoff möglich. According to the invention, the joints over which the adjacent ends of the frame legs are hinged together for individual adjustment of an offset between the joints and clamping edges of the semifinished product, in particular for individual adjustment of an offset between hinge points of the joints and intersections of the clamping edges of the semifinished product in the joints , designed to be movable. According to the invention, an offset between the joints of the frame legs and the clamping edges or clamping edges of the semifinished product by displacement of the joints relative to the frame legs individually adjustable in the shear frame. The offset between the joints, via which adjacent ends of the frame legs are hinged together, and the clamping edges in the region of the joints determines how the applied over the shear frame test load is introduced into the semi-finished product to be tested or distributed in the same. The offset setting allows individual, precisely defined testing of semi-finished products from or for a fiber composite material.
Nach einer vorteilhaften Weiterbildung der Erfindung ist jedes Gelenk aus Gelenkhälften gebildet, die um den jeweiligen Gelenkpunkt des Gelenks zueinander schwenkbar oder drehbar sind, wobei jede der Gelenkhälften an einem Ende eines der Rahmenschenkel linear verlagerbar befestigt ist. Hiermit lässt sich der Offset zwischen den Gelenkpunkten der Gelenke, welche die benachbarten Enden der Rahmenschenkel des Scherrahmens gelenkig miteinander verbinden, und den Schnittpunkten der Spannränder des Halbzeugs, zuverlässig einstellen. According to an advantageous development of the invention, each joint is formed of joint halves which are pivotable relative to each other about the respective hinge point of the joint, wherein each of the joint halves is attached to a linear displacement of one end of the frame legs. This allows the offset between the hinge points of the joints, which connect the adjacent ends of the frame legs of the shear frame articulated together, and the intersections of the clamping edges of the semifinished set reliably.
Vorzugsweise weist der Scherrahmen vier Rahmenschenkel auf, die unter Ausbildung von vier Gelenken gelenkig miteinander verbunden sind, wobei jedes Gelenk zur individuellen Einstellung eines Offsets zwischen den Gelenken und denn Spannkanten des Halbzeugs linear verlagerbar ist. Im Bereich aller vier Gelenke kann der Offset zwischen den Gelenkpunkten des jeweiligen Gelenks und dem jeweiligen Schnittpunkt der Spannkanten des Halbzeugs individuell eingestellt werden, nämlich durch lineare Verlagerung der Gelenke. Hiermit lässt sich letztendlich jedes Halbzeug einer vorteilhaften, individuellen und exakt definierten Prüfung, insbesondere einer Drapierfähigkeitsprüfung, unterziehen. Preferably, the shear frame has four frame legs, which are hinged together to form four joints, each joint for individual adjustment of an offset between the joints and because clamping edges of the semifinished product is linearly displaceable. In the region of all four joints, the offset between the articulation points of the respective joint and the respective intersection of the clamping edges of the semifinished product can be adjusted individually, namely by linear displacement of the joints. With this, ultimately, each semi-finished product can be subjected to an advantageous, individual and precisely defined test, in particular a drapability test.
Bevorzugte Weiterbildungen ergeben sich aus den Unteransprüchen und der nachfolgenden Beschreibung. Ausführungsbeispiele der Erfindung werden, ohne hierauf beschränkt zu sein, an Hand der Zeichnung näher erläutert. Dabei zeigt: Preferred developments emerge from the subclaims and the following description. Embodiments of the invention will be described, without being limited thereto, with reference to the drawings. Showing:
Die Erfindung betrifft einen Scherrahmen zur Prüfung von Halbzeugen aus einem Faserverbundwerkstoff oder von Halbzeugen für einen Faserverbundwerkstoff. Bei einem solchen Halbzeug für einen Faserverbundwerkstoff kann es sich um ein sogenanntes trockenes Halbzeug oder auch um ein sogenanntes Prepreg handeln. Bei einem Halbzeug aus einem Faserverbundwerkstoff kann es sich um ein sogenanntes Organoblech handeln. The invention relates to a shear frame for testing semi-finished products made of a fiber composite material or semi-finished products for a fiber composite material. Such a semifinished product for a fiber composite material may be a so-called dry semifinished product or else a so-called prepreg. A semifinished product made from a fiber composite material may be a so-called organic sheet.
So zeigt insbesondere
So zeigt
An den Rahmenschenkeln
In
Über den Scherrahmen
Das Ankopplungselement
Der erfindungsgemäße Scherrahmen
Im Bereich jedes der vier Gelenke
Wie bereits ausgeführt, sind die Gelenke
Hierzu ist jede Gelenkhälfte
In gelöstem Zustand der oder jeder Fixierschraube
Im Bereich jedes Gelenks
Es sei an dieser Stelle darauf hingewiesen, dass an dem Scherrahmen
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 1 1
- Scherrahmen shear frame
- 2 2
- Rahmenschenkel frame legs
- 2a 2a
- Ende The End
- 2b 2 B
- Ende The End
- 3 3
- Rahmenschenkel frame legs
- 3a 3a
- Ende The End
- 3b 3b
- Ende The End
- 4 4
- Rahmenschenkel frame legs
- 4a 4a
- Ende The End
- 4b 4b
- Ende The End
- 5 5
- Rahmenschenkel frame legs
- 5a 5a
- Ende The End
- 5b 5b
- Ende The End
- 6 6
- Gelenk joint
- 6a 6a
- Gelenkhälfte joint half
- 6b 6b
- Gelenkhälfte joint half
- 7 7
- Gelenk joint
- 8 8th
- Gelenk joint
- 9 9
- Gelenk joint
- 10 10
- Halbzeug Workpiece
- 10a 10a
- Randabschnitt edge section
- 10b 10b
- Aussparung recess
- 10c 10c
- Spannkante clamping edge
- 11 11
- Spannbacke jaw
- 12 12
- Koppelungselement coupling element
- 13 13
- Koppelungselement coupling element
- 14 14
- Adapterelement adapter element
- 15 15
- Langloch Long hole
- 16 16
- Fixierschraube fixing screw
- 17 17
- Skala scale
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015207585.0A DE102015207585A1 (en) | 2015-04-24 | 2015-04-24 | Shear frame for testing semi-finished products from or for a fiber composite material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015207585.0A DE102015207585A1 (en) | 2015-04-24 | 2015-04-24 | Shear frame for testing semi-finished products from or for a fiber composite material |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102015207585A1 true DE102015207585A1 (en) | 2016-10-27 |
Family
ID=57110617
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102015207585.0A Withdrawn DE102015207585A1 (en) | 2015-04-24 | 2015-04-24 | Shear frame for testing semi-finished products from or for a fiber composite material |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102015207585A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106769543A (en) * | 2017-04-06 | 2017-05-31 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | A kind of composite material spar docking structure shearing performance test devices and methods therefor |
CN109738300A (en) * | 2018-10-31 | 2019-05-10 | 中国飞机强度研究所 | A kind of curved scissors combination test apparatus of pin shaft base part |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6860156B1 (en) * | 2004-05-24 | 2005-03-01 | The United States Of America As Represented By The Secretary Of The Navy | Combined in-plane shear and multi-axial tension or compression testing apparatus |
DE102012011861A1 (en) * | 2012-06-14 | 2012-11-22 | Daimler Ag | Device for determining frictional coefficient of textile material, comprises friction element that is arranged and configured, such that frictional force of friction element is introduced into textile material receiving element |
DE102011119209A1 (en) * | 2011-11-23 | 2013-05-23 | Audi Ag | Device for determining shear modulus of e.g. carbon fiber fabric used in manufacture of carbon fiber reinforced plastic component, has measuring sensor to measure force exerted on textile semi-finished material |
DE102012100973A1 (en) * | 2012-02-07 | 2013-08-08 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Method for determining incineration characteristics of fiber semi-finished product, involves providing test apparatus with upper surface around two curvature axes, where each curvature has predetermined curvature value around curvature axes |
-
2015
- 2015-04-24 DE DE102015207585.0A patent/DE102015207585A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6860156B1 (en) * | 2004-05-24 | 2005-03-01 | The United States Of America As Represented By The Secretary Of The Navy | Combined in-plane shear and multi-axial tension or compression testing apparatus |
DE102011119209A1 (en) * | 2011-11-23 | 2013-05-23 | Audi Ag | Device for determining shear modulus of e.g. carbon fiber fabric used in manufacture of carbon fiber reinforced plastic component, has measuring sensor to measure force exerted on textile semi-finished material |
DE102012100973A1 (en) * | 2012-02-07 | 2013-08-08 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Method for determining incineration characteristics of fiber semi-finished product, involves providing test apparatus with upper surface around two curvature axes, where each curvature has predetermined curvature value around curvature axes |
DE102012011861A1 (en) * | 2012-06-14 | 2012-11-22 | Daimler Ag | Device for determining frictional coefficient of textile material, comprises friction element that is arranged and configured, such that frictional force of friction element is introduced into textile material receiving element |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106769543A (en) * | 2017-04-06 | 2017-05-31 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | A kind of composite material spar docking structure shearing performance test devices and methods therefor |
CN106769543B (en) * | 2017-04-06 | 2019-08-09 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | A kind of composite material spar docking structure shearing performance test devices and methods therefor |
CN109738300A (en) * | 2018-10-31 | 2019-05-10 | 中国飞机强度研究所 | A kind of curved scissors combination test apparatus of pin shaft base part |
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Legal Events
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R123 | Application deemed withdrawn due to non-payment of filing fee | ||
R409 | Internal rectification of the legal status completed | ||
R409 | Internal rectification of the legal status completed | ||
R409 | Internal rectification of the legal status completed | ||
R163 | Identified publications notified | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |