Mechanische Beanspruchung pflanzlicher organischer Materialien (English shop)

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Alexander H. W. Baaden’s dissertation investigates the mechanical properties and comminution behavior of plant-derived organic materials, with particular emphasis on moisture content and material composition. The experimental research examines nine materials, including rice, lentils, sunflower seeds, almonds, hay, carrots, potatoes, apples, and avocados. Uniaxial compression, cutting, and shear tests are conducted using a universal testing machine to determine mechanical strength characteristics and specific deformation energies. Additional experiments investigate the size reduction of individual organic substrates and two-component mixtures in a cutting mill. Particle size distributions, specific surface areas, and the release of organic constituents are analyzed to characterize the effects of mechanical treatment. Another research focus concerns the influence of mechanical pretreatment on anaerobic biodegradation and biogas production. The investigations highlight the importance of moisture content and material structure in determining the mechanical behavior of plant materials. The findings contribute to understanding the processing characteristics of organic substances and provide a scientific foundation for improving comminution processes and organic waste treatment.