GB1223823A - Method of and apparatus for measuring the brittleness of a rigid plastics material - Google Patents

Method of and apparatus for measuring the brittleness of a rigid plastics material

Info

Publication number
GB1223823A
GB1223823A GB1531669A GB1531669A GB1223823A GB 1223823 A GB1223823 A GB 1223823A GB 1531669 A GB1531669 A GB 1531669A GB 1531669 A GB1531669 A GB 1531669A GB 1223823 A GB1223823 A GB 1223823A
Authority
GB
United Kingdom
Prior art keywords
specimen
pendulum
arm
tensile force
brittleness
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.)
Expired
Application number
GB1531669A
Inventor
Andre Gonze
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.)
Solav & Cie
Original Assignee
Solav & Cie
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 Solav & Cie filed Critical Solav & Cie
Publication of GB1223823A publication Critical patent/GB1223823A/en
Expired legal-status Critical Current

Links

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
    • 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
    • G01N2203/003—Generation of the force
    • G01N2203/0032—Generation of the force using mechanical means
    • G01N2203/0039—Hammer or pendulum
    • 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
    • G01N2203/0058—Kind of property studied
    • G01N2203/006—Crack, flaws, fracture or rupture
    • G01N2203/0062—Crack or flaws
    • 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

Landscapes

  • 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

1,223,823. Measuring brittleness. SOLVAY & CIE . March 24, 1969 [April 4, 1968], No.15316/69. Heading G1S. A method of measuring the brittleness of a rigid plastics material comprises subjecting a specimen E of the material to a longitudinal tensile force and determining the tensile force at which the specimen undergoes a brittle fracture when subjected to a notch forming impact in a direction at right angles to the direction of the longitudinal tensile force. The specimen is clamped between jaws 6, 7 and the tensile force is applied by rotating a crank 14 which moves the jaw 7, the magnitude of the force being measured by a dynamometer 8 and displayed on a dial 12. The impact to the specimen is provided by a pendulum 21 pivoted by a rod 18 in the arms 3, 4 of a frame 1. The pendulum has a metal mass 22 in which a metal blade 23 is adjustably mounted. A screw 33 enables an axial adjustment of the rod 18 to ensure that the blade 23 will strike the centre of the specimen. An arm 26, pivotable about the rod 18, is initially rotated to a position forming a predetermined angle with the vertical as indicated by a scale 25 co-operating with a window 28 in the arm, and locked in position. The pendulum is then raised and locked to the arm by a stirrup 29 and a push button 31 supported on the arm. On pressing the push button the pendulum is released to strike the specimen with an impact of known magnitude.
GB1531669A 1968-04-04 1969-03-24 Method of and apparatus for measuring the brittleness of a rigid plastics material Expired GB1223823A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE713208 1968-04-04

Publications (1)

Publication Number Publication Date
GB1223823A true GB1223823A (en) 1971-03-03

Family

ID=3852695

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1531669A Expired GB1223823A (en) 1968-04-04 1969-03-24 Method of and apparatus for measuring the brittleness of a rigid plastics material

Country Status (4)

Country Link
JP (1) JPS4831278B1 (en)
BE (1) BE713208A (en)
GB (1) GB1223823A (en)
NL (1) NL6905132A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110132745A (en) * 2019-04-30 2019-08-16 贵州省分析测试研究院 A kind of method and device of indirect reflection metal material impact toughness

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110132745A (en) * 2019-04-30 2019-08-16 贵州省分析测试研究院 A kind of method and device of indirect reflection metal material impact toughness

Also Published As

Publication number Publication date
BE713208A (en) 1968-10-04
JPS4831278B1 (en) 1973-09-27
NL6905132A (en) 1969-10-07

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