Topology Optimization for Additive Manufacturing: New Projection-based Design Algorithms

Osanov, Mikhail; Carstensen, Josephine V.; Tromme, Emmanuel; Guest, James K.; Williams, Christopher

doi:10.2514/6.2016-3213

Cited by 7 publications

(1 citation statement)

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“…The blast and impact response of structural elements and different types of piers and beams of the bridge were discussed by several researchers [35][36][37]. Similarly, the numerical investigation of topology optimized structures was carried out by several researchers [38][39][40]. Unfortunately, few studies have reported the impact of topologyoptimized structures [23] with fibrous concrete.…”

Section: Introductionmentioning

confidence: 99%

Impact Response of Preplaced Aggregate Fibrous Concrete Hammerhead Pier Beam Designed with Topology Optimization

Salaimanimagudam

Murali

Vardhan³

et al. 2021

Crystals

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This research aimed to study the impact response of topology optimized hammerhead pier beam (HPB) based on the density approach. The HPB is prepared with the concept of preplaced aggregate fibrous concrete (PAFC) comprising two primary approaches; first, the coarse aggregate and fiber are prepacked into the designed formwork. Second, the gaps between the aggregate and fiber are filled with cement grout. In this work, an attempt has been made to study an impact response of HPB made with PAFC. Five HPBs were prepared and strengthened with steel fibers with two different schemes, Firstly, the HPB was reinforced with a full cross-section at 2 and 4% of steel fiber, while another set of beams were only reinforced in the tension zone with the same amount of fibers. The study parameters included compressive strength, impact strength, impact ductility index, number of main and secondary cracks, and failure pattern. It was observed that the PAFC had an increase in compressive strength up to 56.9%, compared with nonfibred concrete. A fully fibered concrete beam with 4% fiber addition was the best at taking impact, and the initial crack and failures were observed at 2725.1 J and 3009.8 J, respectively, compared with non-fibered and tension zone fibered concrete beams. Compressive local damage and transverse flexural cracks were observed, which had caused initial cracks and final failure. The HPB with a full reinforced scheme at 4% dosage exhibited higher impact strength than the normal concrete and beam reinforced only in the tension zone.

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Section: Introductionmentioning

confidence: 99%

Impact Response of Preplaced Aggregate Fibrous Concrete Hammerhead Pier Beam Designed with Topology Optimization

Salaimanimagudam

Murali

Vardhan³

et al. 2021

Crystals

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An Improved Sensitivity Method for Multi-material Topology Optimization

Zhang

Hanif

2020

Advances in Intelligent Systems and Computing

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A continuous model for connectivity constraints in topology optimization

Donoso

Aranda

Ruiz

2023

Struct Multidisc Optim

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The aim of this work is to present a continuos mathematical model that characterizes and enforces connectivity in a topology optimization problem. That goal is accomplished by constraining the second eigenvalue of an auxiliary eigenproblem, solved together with the governing state law in each step of the iterative process. Our density-based approach is illustrated with 2d and 3d numerical examples in the context of structural design.

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Topology Optimization for Additive Manufacturing: New Projection-based Design Algorithms

Cited by 7 publications

References 1 publication

Impact Response of Preplaced Aggregate Fibrous Concrete Hammerhead Pier Beam Designed with Topology Optimization

Impact Response of Preplaced Aggregate Fibrous Concrete Hammerhead Pier Beam Designed with Topology Optimization

An Improved Sensitivity Method for Multi-material Topology Optimization

A continuous model for connectivity constraints in topology optimization

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