Πέμπτη 16 Νοεμβρίου 2017

Compression bending test mechanism for plywood - fiberglass composites, by Alexandros Peteinarelis

Compression bending test mechanism for plywood-fiberglass composites. Encoding complex 3d form into flat 2d strips, through fiber orientation and layers count distribution.

Research project by Alexandros investing on the gap between physical and digital modeling and testing.





A compression bending test mechanism has been developed to measure and document the bending properties of plywood-fiberglass composite slender beams, employing Tracker, a digital video analysis and modelling tool and Grasshopper, a graphical algorithm editor for Rhino 3d. 




Fiberglass is distributed along planar plywood strips, in one or more layers, in four warp-weft fiber directions of 0, 30, 45 and 60 degrees. The deflections, forces and geometry of the bending tests are analyzed and classified per case, in order to derive the bending modulus, the proportional limit and the minimum bending radius of various plywood-fiberglass layout schemes. 



The results are embedded into K2Engineering, a structurally calibrated extension of Kangaroo2 grasshopper plugin, which is a 3DOF Dynamic Relaxation interactive simulation engine. K2engineering offers direct input and output of structural data that define the resulting shape and can be used to evaluate its structural performance respectively. This enables a unified, multiscalar materially informed form finding process, where the final geometry is approximated according to the local material specifications at a macro, meso and micro scale. General dimensions, i.e. width length and thickness, the number of fiberglass layers and the orientation of wood grain and glass fibers respectively, along with the resin formulation and the chosen boundary conditions can output a variable stiffness strip, that when bent, converges into a non-symmetrical shape of variable curvature without the need of a secondary support system.



Σάββατο 11 Νοεμβρίου 2017

SURFACE | 2017, 2nd Year Studio with Yannis Zavoleas

An update of Yannis's latest work together with a wonderful team of colleagues and students at the University of Newcastle, New South Wales. Research on the now closer relation between materials, construction and design may prove as a new foundation for architecture's potential role.



INTRODUCTION 
The aim for this second‐year second‐semester core studio is to provide an understanding of digital processes and their application to architectural design. Computation, parametric design, modelling, simulation and other advanced techniques are employed to tackle a design problem of research nature, that is, prompting towards experimental uses of digital tools and their synergy with advanced analogue techniques and mainly modelling, in order to produce design propositions that extend our sense of architectural space and structure. Experimental design strategies are introduced together with a range of tools and processes of the digital interface. These strategies unfold along with the development of three assessments set as Analysis, Schematic and Prototyping.


BACKGROUND 
This course focuses on the notion of surface in architecture. First, it draws upon manifestations of surface in nature in order to revisit common conceptions assuming architectural surface to be a flat element of same consistency and constant thickness and a consequence of standardising geometric norms, as these were founded in the modern aesthetics and construction techniques. Furthermore, with the new possibilities that have emerged due to digital technologies primarily related to CNC fabrication, it is generally conceded that geometricism, i.e. the analysing of complex forms to simple Euclidian shapes, soon may no longer be a prerequisite to construction. Such a prospect invites towards a complete turn in defining architectural surface from a fixed element to a malleable topological entity produced through its dynamic interactions with agents and data inputs defining a project. Along with geometric definitions of surface developed during modernism, there were a number of pioneering architects of the same period who questioned its efficacy in meeting design aims. Related studies focused on observations for example that flat geometries often lack tectonic behaviour, as they promote rigid structures with large amount of material waste, or that geometric purity is often inefficient in cases requiring higher level of refinement. Alternative concepts were drawn remarkably without any computational aid, leaning towards softer geometries and agile structures set in response to local conditions. In retrospect, it is argued that such attempts prepared the definitions of surface that occurred three decades later, this time supported by the so‐called digital revolution. References drawn from a large pool of precedents of natural origin combined with advanced computational tools have offered new meaning and ways of appropriation of surface in architecture.



COURSE STRUCTURE
The course is divided into three phases, coinciding with the assessment items as explained below:
First phase: Analysis: Data  Ideation  Hypothesis
Second phase: Schematic: Spatial Adaptation
Third phase: Prototyping Architecture





For more details: 
https://yzarch.wordpress.com/2017/11/09/surface-2017/
http://www.eaae.be/wp-content/uploads/2017/04/EAAE_Transactions_48.pdf