Determination of load paths in plates and shells

Tamijani, Ali Y.; Hurley, Joel; Gharibi, Kaveh

doi:10.1016/j.tws.2018.02.031

Cited by 9 publications

(1 citation statement)

References 16 publications

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“…LP can be iterated for a topology optimization algorithm to explore the parts’ contour and size under the pre-established load conditions (Kelly et al , 2011). In addition, the identification and visualization method of LPs in plate and shell structures had been proposed and was supported by mathematical formulations (Tamijani et al , 2018).…”

Section: Introductionmentioning

confidence: 99%

Force-flow guided reinforcement design of homogeneous mesoscale structure in additive manufacturing

Huang²,

Wang³

et al. 2022

RPJ

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Purpose The mesoscale structure (MS) has a significant impact on the mechanical performance of parts made by additive manufacturing (AM). This paper aims to explore the design and fabrication of force-flow guided reinforcement mesoscale structure (FFRMS) compared with the homogeneous mesoscale structure (HMS), which is inconsistent with the stress field for a given load condition. Some cases were presented to demonstrate the mechanical properties of FFRMS in terms of MS combined with quasi-isotropy and anisotropy. Design/methodology/approach The paper consists of four main sections: the first developed the concept of FFRMS design based on HMS, the second explored volume fraction control for the proportion of force-flow lines in terms of mechanical property requirement, and the third presented a sequence stacking theory and practical manufacturing process framework and the final sections provided some application case studies. Findings The main contributions of this study were the definition and development of the FFRMS concept, the application framework and the original case studies. As an example, a typical lug designed with the proposed FFRMS method was fabricated by three different AM processes. The test results showed that both the strength and stiffness of the specimens are improved greatly by using the FFRMS design method. Originality/value The superposition of HMS as the basement and force-flow as an indication of the stiffener, leading to a heterogeneous structure, which exhibits more efficient and diversified means compared with the traditional way of increasing the HMS density merely.

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Section: Introductionmentioning

confidence: 99%