SAMPE Journal - May/June 2020 - 17
Superior Testing
Performance
for the Most
Demanding
Applications
(a) Cross-sectional view of HEWC
model
(b) Actual FEM & simulation
of boundary condition without
end fixtures
Figure 10. Finite element model description of HEWC coupon.
plate plies. The finite element model is presented
in Figure 10 showing various components of the
joint and boundary conditions. The frames at the
ends of the coupon were not modeled explicitly but
the influence of it was simulated by appropriately
constraining the nodes. Delamination damage
mode is simulated with the help of built-in cohesive zone model (CZM) in Abaqus. Solid elements
(C3D8) were used to discretize core, adhesive and
gap filler regions. The face sheet and splice plate
were discretized using shell continuum (SC8R) elements and the cohesive layers are discretized using
COH3D8 elements.
Table 2. Test data of HEWC coupons.
HEWC Specimen ID
Test Failure Load (kN)
AG-X plus Series
Precision Universal
Testers
CTE-301-10-AEWC-1
89.14
CTE-301-10-AEWC-2
91.94
Shimadzu's AG-X plus series
testers deliver high-level control,
intuitive operation, and convenient
support functions. Consisting
of seven standard floor/tabletop
models, plus options for extended
height, wide frame, and ultrahighspeed configurations, they are
the primary choice for demanding
testing applications.
Average
95.30
Key features include:
CTE-301-5-AEWC-1
97.95
CTE-301-5-AEWC-2
101.20
CTE-301-5-AEWC-3
90.92
CTE-301-9-AEWC-1
96.75
CTE-301-9-AEWC-2
99.20
Pristine Coupon Testing & PFA Correlation
Seven pristine coupons were tested and the average failure load was 95.30 kN as listed in Table 2.
The failure mode of these coupons were in the form
of delamination between the outer face sheet ply
and the adjacent ply, close to the adhesive layer.
Some fiber failure was noticed in outer face sheet
plies at the termination point of splice plates. Progressive failure analysis (PFA) generated a max failure load of 92.43 kN, which is within 3.0% of test
w w w. s a m p e . o r g
Enhanced torsional rigidity
High-speed (5 kHz) data capture
sampling rate
Test force accuracy guaranteed
within ±0.5% from 1/1 to
1/1000 of the load cell capacity
Smart Controller for easy
operation and data confirmation
Powerful, intuitive software
Learn more. Call (800) 477-1227 or visit
www.ssi.shimadzu.com/AGX
Shimadzu Scientific Instruments
7102 Riverwood Dr., Columbia, MD 21046
M AY/J U N E 2 0 2 0
|
SAMPE JOURNAL
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17
http://www.ssi.shimadzu.com/AGX
http://www.sampe.org
SAMPE Journal - May/June 2020
Table of Contents for the Digital Edition of SAMPE Journal - May/June 2020
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SAMPE Journal - May/June 2020 - Cover2
SAMPE Journal - May/June 2020 - Table of Contents
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