DE3234611A1 - Method and device for annihilating the residual energy of a drop impact tester for Battelle samples - Google Patents

Method and device for annihilating the residual energy of a drop impact tester for Battelle samples

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Publication number
DE3234611A1
DE3234611A1 DE19823234611 DE3234611A DE3234611A1 DE 3234611 A1 DE3234611 A1 DE 3234611A1 DE 19823234611 DE19823234611 DE 19823234611 DE 3234611 A DE3234611 A DE 3234611A DE 3234611 A1 DE3234611 A1 DE 3234611A1
Authority
DE
Germany
Prior art keywords
residual energy
samples
battelle
sample
annihilating
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.)
Granted
Application number
DE19823234611
Other languages
German (de)
Other versions
DE3234611C2 (en
Inventor
Gerd Dipl.-Ing. 4033 Hösel Junker
Friedrich 4100 Duisburg Stiehle
Gerd Dr.-Ing. 4005 Meerbusch Vogt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vodafone GmbH
Original Assignee
Mannesmann AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mannesmann AG filed Critical Mannesmann AG
Priority to DE19823234611 priority Critical patent/DE3234611C2/en
Publication of DE3234611A1 publication Critical patent/DE3234611A1/en
Application granted granted Critical
Publication of DE3234611C2 publication Critical patent/DE3234611C2/en
Expired legal-status Critical Current

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Classifications

    • 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
    • G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
    • G01N3/303—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated only by free-falling weight
    • 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
    • G01N2203/027—Specimens with holes or notches

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  • 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)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

The invention relates to a method for annihilating the residual energy of a drop impact tester for Battelle samples. In order to provide a method and a device for annihilating the residual energy of a drop impact tester for Battelle samples after fracturing the sample to make it possible to annihilate the residual energy without recoil and without affecting the measurement process, it is proposed that after the sample is fractured, the entire residual energy is absorbed hydropneumatically and is converted into oil pressure without spring-back. <IMAGE>

Description

Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Ver-The invention relates to a method and a device for

nichtung der Restenergie eines Fallwerkes für BDWT-Proben (Battelle-Drop-Weight-Tear-Test) nach Durchbrechen der Probe.Elimination of the residual energy of a drop weight tester for BDWT samples (Battelle Drop Weight Tear Test) after breaking through the sample.

Bei bisherigen Fallwerken zur Durchführung eines Fallgewichtsversuches nach Battelle wurde die vorhandene Restenergie in ein gemeinsames Fundament übertragen, auf dem sowohl die Probenauflage als auch der Führungsrahmen befestigt waren. Hierdurch wird die verbleibende Restenergie direkt in das Fundament übertragen und führt einerseits zu einer starken Erschütterung der Umgebung und andererseits auch' zu einer dynamischen Beanspruchung des Maschinenrahmens.With previous drop weight tests to carry out a drop weight test According to Battelle, the remaining energy was transferred to a common foundation, on which both the sample support and the guide frame were attached. Through this the remaining energy is transferred directly into the foundation and leads on the one hand to a strong vibration of the environment and on the other hand also to a dynamic one Stress on the machine frame.

In jüngerer Zeit wird dieser Versuch auch für die Ermittlung der beim Bruch der Probe verbrauchten Energie benutzt. Dies erfolgt üblicherweise mit Hilfe einer mit Dehnmeßstreifen instrumentierten Hammerfinne, wobei der Kraft-Zeit-Verlauf gemessen und zur Berechnung der Energie verwendet wird.More recently, this attempt has also been used to determine when Breaking the sample used energy. This is usually done with help a hammer fin instrumented with strain gauges, with the force-time curve is measured and used to calculate the energy.

Aufgabe der Erfindung ist es, ein Verfahren und eine Vorrichtung zur Vernichtung der Restenergie eines Fallwerkes für BDWT-Proben nach Durchbrechen der Probe zu schaffen, die eine Vernichtung der Restenergie rückstoßfrei und ohne Beeinflussung des Meßvorganges ermöglichen.The object of the invention is to provide a method and a device for Destruction of the residual energy of a drop weight tester for BDWT samples after breaking through the To create a sample that destroys the residual energy without recoil and without influencing it enable the measuring process.

Zur Lösung dieser Aufgabe wird ein Verfahren und eine Vorrichtung zur Vernichtung der Restenergie eines Fallwerkes für BDWT-Proben nach Durchbrechen der Probe vorgeschlagen, wie es in den Patentansprüchen beschrieben ist.- Die wesentlichen Vorteile des erfindungsgemäßen Verfahrens und der Vorrichtung liegen in der Anwendung einer normalen Konstruktion auf getrennten Fundamenten mit einer reibungsarmen Führung. Oberschwere Fundamente sind nicht mehr erforderlich. Durch die restlose Vernichtung der Energie wird ein erhebliche Minderung sowohl der Erschütterung als auch der Geräusche erzielt.A method and a device are used to solve this problem to destroy the residual energy of a drop weight tester for BDWT samples after breaking through proposed to the sample as described in the claims. the are essential advantages of the method and the device according to the invention in the application of a normal construction on separate foundations with a low-friction leadership. Heavy foundations are no longer required. By the complete annihilation of the energy will considerably reduce both the shock as well as the noises.

Die Lebensdauer des Fallwerkes und der Fundamente wird durch die erfindungsgemäße Verwendung von hydropneumatischen Stoßdämpfern gegenüber mechanisch wirkenden Dämpfungselementen erheblich erhöht. Durch die Einstellbarkeit der Düsen kann eine Anpassung der hydropneumatischen Stoßdämpfer an unterschiedliche Fal lenergien erfolgen.The service life of the drop weight and the foundations is through the inventive Use of hydropneumatic shock absorbers as opposed to mechanically acting damping elements increased significantly. The adjustability of the nozzles means that the hydropneumatic Shock absorbers at different fall energies take place.

In der beigefügten Zeichnung ist eine vorteilhafte Ausführungsform einer erfindungsgemäßen Vorrichtung schematisch dargestellt.In the accompanying drawing is an advantageous embodiment a device according to the invention shown schematically.

In dieser Zeichnung ist der Fallwerksrahmen 2 auf das Fundament 3 aufgesetzt, während das eigentliche Fallwerk mit der Probenaufnahme 1 auf dem getrennten Fundament 4 angeordnet ist. Ebenso auf dem Fundament 4 sind hydropneumatische Stoßdämpfer 5 angeordnet. Die Stoßdämpfer 5 sind mit verstellbaren Düsen 6 und einem Ausgleichsbehälter 7 versehen. Der Ausgleichsbehälter 7 ist zu einem Drittel mit Luft gefüllt.In this drawing, the drop weight frame 2 is on the foundation 3 put on, while the actual drop weight tester with the sample receptacle 1 on the separate Foundation 4 is arranged. Also on the foundation 4 are hydropneumatic shock absorbers 5 arranged. The shock absorbers 5 have adjustable nozzles 6 and an expansion tank 7 provided. One third of the expansion tank 7 is filled with air.

Bei Anwendung des Verfahrens wird nach Einlegen der Probe das Fallgewicht 8 mit der Hammerfinne 9 ausgelöst und trifft auf die Probe 10. Nach Brechen der Probe 10 und gleichzeitig erfolgter Energiemessung setzt das Fall gewicht 8 auf die Stoßdämpfer 5 auf. Hierbei wird die verbleibende Restenergie ohne Schlagwirkung vernichtet und eine schädliche Einwirkung auf Fundament und Rahmen vermieden. Aufgrund der Wirkungsweise.der Stoßdämpfer 5 mit den einstellbaren Düsen 6 und dem Ausgleichsbehälter 7 findet kein Rückfedern des Fallgewichtes 8 statt.When using the method, the falling weight is determined after inserting the sample 8 triggered with the hammer fin 9 and hits the sample 10. After breaking the Sample 10 and the energy measurement carried out at the same time puts the falling weight 8 on the shock absorber 5 on. The remaining energy is left without impact destroyed and a harmful effect on the foundation and frame avoided. Because of the mode of operation of the shock absorber 5 with the adjustable nozzles 6 and the expansion tank 7, the falling weight 8 does not spring back.

LeerseiteBlank page

Claims (2)

Verfahren und Vorrichtung zur Vernichtung der Restenergie eines Fallwerkes für BDWT-Proben Patentansprüche: 1.,Verfahren zur Vernichtung der Restenergie eines Fallwerkes für Battelle-Proben, d a d u r c h gek en n t e i c h net, daß nach Durchbrechen der Probe die gesamte Restenergie hydropneumatisch aufgenommen und ohne Rückfederung in Umdruck umgewandelt wird.Method and device for destroying the residual energy of a drop weight for BDWT samples claims: 1., method for destroying the residual energy of a Fallwerkes for Battelle-Rehearsals, it is not possible that after breaking through the entire residual energy of the sample absorbed hydropneumatically and without springback is converted into transfer printing. 2. Vorrichtung zur Durchführung des Verfahrens nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , daß a) die Probenauflage (1) und der Fallwerksrahmen (2) nicht miteinander verbunden und auf getrennten Fundamenten (3+4) befestigt sind; b) beidseitig der Probenauflage (1) hydropneumatische Stoßdämpfer (5) auf dem Fundament (4) der Probenauflage (1) angeordnet sind; c) die Stoßdämpfer (5) mit verstellbaren Düsen (6) und einem -Ausgleichsbehälter (7) ausgestattet sind; d) die Ausgleichsbehälter (7) zu einem Drittel mit Luft gefüllt sind.2. Apparatus for performing the method according to claim 1, d a d u r c h g e k e n n n n z e i c h n e t that a) the sample support (1) and the drop weight frame (2) are not connected to each other and are fixed on separate foundations (3 + 4); b) on both sides of the sample support (1) hydropneumatic shock absorbers (5) on the foundation (4) the sample support (1) are arranged; c) the shock absorber (5) with adjustable Nozzles (6) and an expansion tank (7) are equipped; d) the expansion tanks (7) are filled to one third with air.
DE19823234611 1982-09-15 1982-09-15 Drop mechanism for Batelle samples Expired DE3234611C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19823234611 DE3234611C2 (en) 1982-09-15 1982-09-15 Drop mechanism for Batelle samples

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19823234611 DE3234611C2 (en) 1982-09-15 1982-09-15 Drop mechanism for Batelle samples

Publications (2)

Publication Number Publication Date
DE3234611A1 true DE3234611A1 (en) 1984-03-15
DE3234611C2 DE3234611C2 (en) 1987-01-22

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DE19823234611 Expired DE3234611C2 (en) 1982-09-15 1982-09-15 Drop mechanism for Batelle samples

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DE (1) DE3234611C2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010037979A1 (en) 2010-10-05 2012-04-05 Zwick Gmbh & Co. Kg Pendulum ram impact testing machine for testing properties of material, has active mass portion which is defined with initial energy in accelerated movement along arc shaped path of inspection location for retaining sample of material

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4085609A (en) * 1976-07-26 1978-04-25 The Steel Company Of Canada, Limited Dropweight sample tester

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4085609A (en) * 1976-07-26 1978-04-25 The Steel Company Of Canada, Limited Dropweight sample tester

Also Published As

Publication number Publication date
DE3234611C2 (en) 1987-01-22

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