Experimental and numerical evaluation of the blast-like loading of fiber reinforced polymer composites and aluminum corrugated core composite sandwiches through projectile impact testing using aluminum corrugated projectiles
by
Odacı, İsmet Kutlay, author.
Title
:
Experimental and numerical evaluation of the blast-like loading of fiber reinforced polymer composites and aluminum corrugated core composite sandwiches through projectile impact testing using aluminum corrugated projectiles
Author
:
Odacı, İsmet Kutlay, author.
Personal Author
:
Odacı, İsmet Kutlay, author.
Physical Description
:
xxii, 253 leaves: color illustraltions.+ 1 computer laser optical disc.
Abstract
:
This thesis develops and validates a laboratory scale blast-like testing method that can simulate explosive blast tests in air and under water without using explosives. The study has mainly focused on the shock loading potential of 1050 H14 trapezoidal corrugated core aluminium sandwich structures on E-glass/polyester composite plates and corrugated core composite sandwich structures experimentally, numerically and analytically. The composite plates were modelled using MAT_162 material model in LS-DYNA finite element code. Quasi-static and high strain rate tests were performed to determine the material model parameters of composite and corrugated structure. The resultant parameters were calibrated and validated by comparing the numerical results with the experimental results. The planar shock wave formation and propagation in corrugated core sandwich structures were shown experimentally using a direct impact Split Hopkinson Pressure Bar test set-up. Rigid-perfectly-plastic-locking material model and Hugoniot jump relations revealed the shock loading potential of the tested corrugated core sandwich structures. The shock loading response of composite plates and sandwich structures were investigated by firing the corrugated sandwich projectiles on the targets. These impact tests were also simulated numerically and an analytic model was used to predict the plate deflections. The experimentally, numerically and analytically determined back face deflections were compared with the deflections of the Conwep blast simulations in LS-DYNA. The results have shown that the corrugated core sandwich structures can generate shock loading as in the explosive blast tests and can be used to produce shock loads in laboratory scale experiments.
Subject Term
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Composite materials -- Testing.
Composite materials -- Impact testing.
Sandwich construction -- Testing.
Ballistics.
Added Author
:
Güden, Mustafa
Added Corporate Author
:
İzmir Institute of Technology. Mechanical Engineering.
Added Uniform Title
:
Thesis (Doctoral)--İzmir Institute of Technology: Mechanical Engineering.
İzmir Institute of Technology:Mechanical Engineering--Thesis (Doctoral).
Electronic Access
:
Library | Material Type | Item Barcode | Shelf Number | Status |
---|
IYTE Library | Thesis | T001418 | TA418.9.C6 O22 2015 | Tez Koleksiyonu |
IYTE Library | Supplementary CD-ROM | ROM2506 | TA418.9.C6 O22 2015 EK.1 | Tez Koleksiyonu |