The impact behaviour of plate-like assemblies made of new interlocking bricks: An experimental study

Javan, Anooshe Rezaee; Seifi, Hamed; Xu, Shanqing; Ruan, Dong; Xie, Yi Min

doi:10.1016/j.matdes.2017.08.056

Cited by 30 publications

(4 citation statements)

References 22 publications

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“…Dyskin et al [2003] introduced osteomorphic blocks for making planar TI assemblies, where the concavo-convex contact surface profiles are defined by using a set of simple rules and mathematical functions. Javan et al [2016] proposed a new osteomorphic block, which has a symmetrical geometry with four curved side surfaces. Weizmann et al [2017] developed a computational tool for designing building floors made as TI assemblies with curved contacts.…”

Section: Related Workmentioning

confidence: 99%

“…And a cone joint degenerates into a planar contact if its translational motion cone becomes a half sphere. Cone joints are typically realized in the form of curved or piecewise-planar contacts between two parts (see Figure 2(c&d)), which have been demonstrated to have good mechanical properties such as reduced stress concentration in building structurally stable assemblies [Dyskin et al 2003;Javan et al 2016]. Parts with cone joints can be easily fabricated with 3D printing, CNC milling, and even hot-wire cutting for large-scale objects [Duenser et al 2020].…”

Section: Introductionmentioning

confidence: 99%

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Mocca

2021

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We present a computational framework for modeling and optimizing complex assemblies using cone joints. Cone joints are integral joints that generalize traditional single-direction joints such as mortise and tenon joints to support a general cone of directions for assembly. This additional motion flexibility not just reduces the risk of deadlocking for complex joint arrangements, but also simplifies the assembly process, in particular for automatic assembly by robots. On the other hand, compared to planar contacts, cone joints restrict relative part movement for improved structural stability. Cone joints can be realized in the form of curved contacts between associated parts, which have demonstrated good mechanical properties such as reduced stress concentration. To find the best trade-off between assemblability and stability, we propose an optimization approach that first determines the optimal motion cone for each part contact and subsequently derives a geometric realization of each joint to match this motion cone. We demonstrate that our approach can optimize cone joints for assemblies with a variety of geometric forms, and highlight several application examples.

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Section: Related Workmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mocca

2021

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“…Weizmann et al [2016; explored different 2D tessellations (regular, semi-regular and non-regular tessellations) to discover new TI blocks for building floors. Besides convex polyhedra, elements with curved contact surfaces can also form planar TI assemblies [Dyskin et al 2003b;Javan et al 2016]; please refer to [Dyskin et al 2019] for a thorough overview. Physical experiments conducted on these TI assemblies show that they possess interesting and unusual mechanical properties, including high strength and toughness [Mirkhalaf et al 2018], damage confinement [Siegmund et al 2016], and avoiding failure under high amplitude vibrations [Schaare et al 2009].…”

Section: Related Workmentioning

confidence: 99%

Design and structural optimization of topological interlocking assemblies

et al. 2019

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We study assemblies of convex rigid blocks regularly arranged to approximate a given freeform surface. Our designs rely solely on the geometric arrangement of blocks to form a stable assembly, neither requiring explicit connectors or complex joints, nor relying on friction between blocks. The convexity of the blocks simplifies fabrication, as they can be easily cut from different materials such as stone, wood, or foam. However, designing stable assemblies is challenging, since adjacent pairs of blocks are restricted in their relative motion only in the direction orthogonal to a single common planar interface surface. We show that despite this weak interaction, structurally stable, and in some cases, globally interlocking assemblies can be found for a variety of freeform designs. Our optimization algorithm is based on a theoretical link between static equilibrium conditions and a geometric, global interlocking property of the assembly---that an assembly is globally interlocking if and only if the equilibrium conditions are satisfied for arbitrary external forces and torques. Inspired by this connection, we define a measure of stability that spans from single-load equilibrium to global interlocking, motivated by tilt analysis experiments used in structural engineering. We use this measure to optimize the geometry of blocks to achieve a static equilibrium for a maximal cone of directions, as opposed to considering only self-load scenarios with a single gravity direction. In the limit, this optimization can achieve globally interlocking structures. We show how different geometric patterns give rise to a variety of design options and validate our results with physical prototypes.

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“…Topological interlocking can also be effective in extraterrestrial construction [17,18]. As topological interlocking is based on blocks of complex shapes, Figure 1, 3D concrete printing can be a technology of choice in manufacturing topological interlocking blocks [19]. Considering that the structure needs special edge, corner, lintel, etc., blocks, digital technology could be incorporated to improve design and buildability.…”

Section: Introductionmentioning

confidence: 99%

Digital Twin Applications in 3D Concrete Printing

et al. 2023

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The benefits of 3D concrete printing (3DCP) include reducing construction time and costs, providing design freedom, and being environmentally friendly. This technology is expected to be effective in addressing the global house shortage. This review highlights the main 3DCP applications and four critical challenges. It is proposed to combine 3D concrete printing with Digital Twin (DT) technology to meet the challenges the 3DCP faces and improve quality and sustainability. This paper provides a critical review of research into the application of DT technology in 3DCP, categorize the applications and directions proposed according to different lifecycles, and explore the possibility of incorporating them into existing 3DCP systems. A comprehensive roadmap was proposed to detail how DT can be used at different lifecycle stages to optimize and address the four main challenges of 3DCP, providing directions and ideas for further research.

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The impact behaviour of plate-like assemblies made of new interlocking bricks: An experimental study

Cited by 30 publications

References 22 publications

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Design and structural optimization of topological interlocking assemblies

Digital Twin Applications in 3D Concrete Printing

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