Measurement of Crack Tip Opening Displacement of Paper: Effects of Specimen Geometry and Initial Crack Length

Kazuyoshi Takagi, Atsushi Tanaka, Tatsuo Yamauchi

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Crack opening displacement (COD) on double edge notched (DEN), single edge notched (SEN) and center notched (SCN) specimens with various crack length was quantitatively analyzed by using video-microscopy for a machine-grazed paper. A linear relationship appears between COD and the distance from the crack tip throughout the testing period for all specimens. The COD-clamp displacement relationship seems to consist of three linear segments and the transitional point between the second and the third segment is identified as the onset of crack propagation for all specimens. Thus, CTOD at the onset of crack propagation (CTODc) can be determined despite of specimen geometry and crack length. Specimen geometry a little affects CTODc for the paper tested.
Original languageEnglish
Pages (from-to)179-184
Number of pages6
JournalNihon Hoso Gakkaishi
Volume9
Issue number3
Publication statusPublished - 2000
MoE publication typeNot Eligible

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Crack tips
Cracks
Geometry
Crack propagation
Clamping devices
Microscopic examination
Testing

Keywords

  • Papers
  • Fracture toughness testing
  • Crack tip opening displacement
  • Specimen geometry

Cite this

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title = "Measurement of Crack Tip Opening Displacement of Paper: Effects of Specimen Geometry and Initial Crack Length",
abstract = "Crack opening displacement (COD) on double edge notched (DEN), single edge notched (SEN) and center notched (SCN) specimens with various crack length was quantitatively analyzed by using video-microscopy for a machine-grazed paper. A linear relationship appears between COD and the distance from the crack tip throughout the testing period for all specimens. The COD-clamp displacement relationship seems to consist of three linear segments and the transitional point between the second and the third segment is identified as the onset of crack propagation for all specimens. Thus, CTOD at the onset of crack propagation (CTODc) can be determined despite of specimen geometry and crack length. Specimen geometry a little affects CTODc for the paper tested.",
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Measurement of Crack Tip Opening Displacement of Paper : Effects of Specimen Geometry and Initial Crack Length. / Takagi, Kazuyoshi; Tanaka, Atsushi; Yamauchi, Tatsuo.

In: Nihon Hoso Gakkaishi, Vol. 9, No. 3, 2000, p. 179-184.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Measurement of Crack Tip Opening Displacement of Paper

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AU - Takagi, Kazuyoshi

AU - Tanaka, Atsushi

AU - Yamauchi, Tatsuo

PY - 2000

Y1 - 2000

N2 - Crack opening displacement (COD) on double edge notched (DEN), single edge notched (SEN) and center notched (SCN) specimens with various crack length was quantitatively analyzed by using video-microscopy for a machine-grazed paper. A linear relationship appears between COD and the distance from the crack tip throughout the testing period for all specimens. The COD-clamp displacement relationship seems to consist of three linear segments and the transitional point between the second and the third segment is identified as the onset of crack propagation for all specimens. Thus, CTOD at the onset of crack propagation (CTODc) can be determined despite of specimen geometry and crack length. Specimen geometry a little affects CTODc for the paper tested.

AB - Crack opening displacement (COD) on double edge notched (DEN), single edge notched (SEN) and center notched (SCN) specimens with various crack length was quantitatively analyzed by using video-microscopy for a machine-grazed paper. A linear relationship appears between COD and the distance from the crack tip throughout the testing period for all specimens. The COD-clamp displacement relationship seems to consist of three linear segments and the transitional point between the second and the third segment is identified as the onset of crack propagation for all specimens. Thus, CTOD at the onset of crack propagation (CTODc) can be determined despite of specimen geometry and crack length. Specimen geometry a little affects CTODc for the paper tested.

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KW - Fracture toughness testing

KW - Crack tip opening displacement

KW - Specimen geometry

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JO - Journal of Packaging Science & Technology, Japan

JF - Journal of Packaging Science & Technology, Japan

SN - 0918-5283

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ER -