Lightweight fabrication to reduce vehicle weight and fuel emissions is an ongoing focus of auto manufacturers. Increasingly, they turn to magnesium, the lightest structural metal, to integrate into their designs.
A recently published research paper titled, Novel Concepts for the Application of Magnesium Sheets and Profiles in Crash Loaded Vehicle Areas reports on a study of the use of magnesium in crash-related areas
(e.g., bumpers) and how magnesium may be used to significantly improve a vehicle’s various crash properties by “filling profiles with a stabilizing core.”
From the paper’s Abstract:
“Structural crashworthiness is not a physical property itself, but correlates with the material’s ductility and structural design. Magnesium is known to be a material with lower failure strain than other metallic materials. Therefore the use of magnesium in crash-related areas is more challenging compared to steel and aluminum.”
The paper evaluates the crashworthiness of a “hybrid structure,” created with a core of foam-filled section beams, to determine the integrity of given components under bending loads. The materials were constructed and tested by using the quasi-static/dynamic three-point bending facilities at German Aerospace Centre (DLR) – Institute of Vehicle Concepts. The DLR is the national center for aerospace, energy and transportation research of the Federal Republic of Germany, headquartered in Cologne, with multiple locations throughout Germany.
More details and access information are available at https://www.scientific.net/MSF.879.211
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