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primary topic: Morphological Analysis, Digital Modeling, and Mechanical Simulation of Carbon Foam

Morphological Analysis, Digital Modeling, and Mechanical Simulation of Carbon Foam
type: Article
abstract: A carbon foam sample is investigated in three steps. Analysis of the pore distribution of the foam is based on its computed tomography data set. For this purpose, an automatic segmentation algorithm is improved: Random access memory usage can be reduced up to two thirds. Effective radii of detected pores lie between r eff = 1 μm and r eff = 160 μm. Small pores with r eff < 8 μm are spherical and occur abundantly. Large pores resemble ellipsoids, and are aligned to each other. After analysis, carbon foam is modeled digitally. Void space is approximated by overlapping ellipsoids, which mimic the previously determined distribution of pores. Modeling is subdivided into two steps: First, around 9600 ellipsoids are packed in a virtual process. For efficiency, inner distances of intersecting ellipsoid surfaces are approximated. Then, small spheres are placed randomly within the remaining material. Altogether, a model foam with 100 000 pores is generated. Multiple linear elastic mechanics simulations are conducted to compare mechanical properties of carbon foam and digital model. Depending on spatial direction, the elastic modulus of the real foam is between 10 % and 45 % larger than the modulus of the model. Finally, effective mechanical properties are compared with models which can be found in literature.
date: 2019
author list: authors
type: EPrint
type: DoctoralThesisEPrint
is part of: repository
has document: Morphological Analysis, Digital Modeling, and Mechanical Simulation of Carbon Foam (PDF)
has document: Morphological Analysis, Digital Modeling, and Mechanical Simulation of Carbon Foam (Other)
subject: 530 Physik

Morphological Analysis, Digital Modeling, and Mechanical Simulation of Carbon Foam (PDF)
type: Document
has file: Thesis_Frederick_Arand.pdf
has part: Thesis_Frederick_Arand.pdf

Frederick Arand
type: Person
given name: Frederick
family name: Arand

Morphological Analysis, Digital Modeling, and Mechanical Simulation of Carbon Foam (Other)
type: Document
is version of: Morphological Analysis, Digital Modeling, and Mechanical Simulation of Carbon Foam (PDF)
is volatile version of: Morphological Analysis, Digital Modeling, and Mechanical Simulation of Carbon Foam (PDF)
is index codes version of: Morphological Analysis, Digital Modeling, and Mechanical Simulation of Carbon Foam (PDF)
has file: indexcodes.txt
has part: indexcodes.txt

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primary topic: Morphological Analysis, Digital Modeling, and Mechanical Simulation of Carbon Foam

530 Physik
type: Concept
preferred label: 530 Physics @en