May 1, 2021 Thesis Open Access

AYANTU GEMECHU TUMSA

DCAT Export

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    <dct:title>IMPACT LOAD RESPONSE OF INCLINED ALUMINUM HONEYCOMB STRUCTURE</dct:title>
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    <dct:description>&lt;p&gt;Honeycomb cellular structures, due to their lightweight and high-energy absorbing capacity, has been used extensively as energy absorbers or cushions to resist external loads. This research work investigates application of inclined aluminum honeycomb structures to shield and protect vital infrastructures. Proposed honeycomb structure absorbs dynamic energy created due to extreme loading and extends life cycle of shielded parent infrastructures. ANSYS Mechanical APDL software used to develop 3D model of honeycomb structure reported from literature and LS-DYNA non-linear finite element software Used for validation and parametric analysis. Further parametric studies on angle of inclination, unit cell geometry, wall thickness, and specimen size and specimen depth performed to optimize energy absorption capacity of honeycomb structure against impact load. The simulation results accurately predicted the average Resultant force, the specific absorbed energy and the total deformation of the specimen. The energy absorption diagram for honeycomb with different geometric configuration reveals the relationship between Force-displacement and energy per unit Volume. Results of this research indicate angle of inclination, thickness of cell size, size of cell geometry, specimen size and specimen depth on inclined Aluminum honeycomb has significant effect on overall response of impact load&lt;/p&gt;</dct:description>
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