Browsing by Subject "mechanical behavior"

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Access status: Open Access ,
Mechanical behavior of adhesive joints: A review on modeling techniques
(Wydawnictwa AGH, 2024) Ries, Maximilian
In the pursuit of lighter designs, many industries are shifting from conventional fasteners to adhesive joints, which offer a better strength-to-weight ratio and facilitate the use of fiber-reinforced polymers. However, modeling adhesive joints presents major challenges due to the complex behavior of polymeric adhesives and the microstructural changes induced by the substrates. As a result, various simulation methods have been developed to capture the behavior of adhesive joints across different scales. Molecular dynamics studies address atomistic and nanoscale phenomena, while continuum approaches – such as the finite element method, cohesive zone models, and peridynamics – focus on meso and macro scales. Additionally, multiscale methods combine particle and continuum approaches to provide a more comprehensive understanding of the adhesive bond behavior. This review paper offers an overview of the most relevant numerical methods employed to examine the mechanical behavior of adhesive joints and illustrates the simulations’ applications through examples from the literature.
Access status: Open Access ,
The influence of strain rate on microstructure and mechanical behavior of P/M feal
(2008) Śleboda, Tomasz
As part of a broader study of the thermomechanical processing of P/M FeAl alloys, this research is focused on the influence of processing strain rate on the microstructural evolution and mechanical behavior of the processed materials. For the purposes of this study, water atomized FeAl powder was consolidated by hot pressing resulting in fully dense products. The consolidated P/M samples were thermomechanically processed in compression at 800 and 900oC at strain rates of 0.1 s-1 and 10 s-1, to a true strain of 1. The influence of thermomechanical processing parameters on the material flow and microstructural development of investigated alloy was analyzed. Considerable strain rate sensitivity of investigated alloy was observed, specially with reference to microstructural development.