SAMPE Journal - September/October 2020 - 9

Figure 3. Manufacturing flow for interlocking-fiber-based crack arrester.

Figure 4. Photograph
of arrester part of
DCB specimen.

RESULTS
A comparison of the typical load-displacement
curves between the specimens without the arrester
and with the arrester (02-902 specimen) is shown
in Figure 5. In the specimens without the arrester,
the load increased elastically at first. When the
crack started to grow from the initial crack, the load
decreased with crack propagation. This is a typical
behavior of specimens in DCB tests. The specimens
with the arrester showed the same tendency as that
of the specimen without the arrester in the initial
stage of the test. However, after the crack reached
the arrester, the load increased inversely. Failure
occurred at a significantly higher load than that in
the specimens without the arrester. A comparison
of the crack tip positions between the specimens
without the arrester and with the arrester when
a displacement of 30 mm is applied is shown in
Figure 6. In the specimens without the arrester,
the crack length was approximately 65 mm from
the initial position. In contrast, crack propagation
was suppressed at the arrester part, which is 30 mm
from the initial crack, in the specimens with the
arrester. This shows that crack propagation can be
suppressed by introducing crack arresters into the

w w w. s a m p e . o r g

Figure 5. Comparison of typical load-displacement curves of specimens
without arrester and with arrester (02-902 specimen).

S E P T E M B E R /O C TO B E R 2 0 2 0

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SAMPE JOURNAL

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9


http://www.sampe.org

SAMPE Journal - September/October 2020

Table of Contents for the Digital Edition of SAMPE Journal - September/October 2020

Table of contents
SAMPE Journal - September/October 2020 - Cover1
SAMPE Journal - September/October 2020 - Cover2
SAMPE Journal - September/October 2020 - Table of contents
SAMPE Journal - September/October 2020 - 2
SAMPE Journal - September/October 2020 - 3
SAMPE Journal - September/October 2020 - 4
SAMPE Journal - September/October 2020 - 5
SAMPE Journal - September/October 2020 - 6
SAMPE Journal - September/October 2020 - 7
SAMPE Journal - September/October 2020 - 8
SAMPE Journal - September/October 2020 - 9
SAMPE Journal - September/October 2020 - 10
SAMPE Journal - September/October 2020 - 11
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SAMPE Journal - September/October 2020 - 13
SAMPE Journal - September/October 2020 - 14
SAMPE Journal - September/October 2020 - 15
SAMPE Journal - September/October 2020 - 16
SAMPE Journal - September/October 2020 - 17
SAMPE Journal - September/October 2020 - 18
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SAMPE Journal - September/October 2020 - 29
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SAMPE Journal - September/October 2020 - Cover3
SAMPE Journal - September/October 2020 - Cover4
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