Structure composed of elements and method for its production

Details Structure composed of elements and method for its production Structure composed of elements and method for its production

2005-04-26

2005-04-26

Loney, Donald J. (Department: 1772)

Stock material or miscellaneous articles

Two dimensionally sectional layer

With frame, casing, or perimeter structure

C428S116000, C428S172000, C428S178000, C428S179000, C156S089110, C156S089220, C264S497000

Reexamination Certificate

active

06884486

ABSTRACT:
The invention relates to a structure assembled from elements, the elements forming an entity with topological interlocking. To improve structures of this type, the invention proposes a self-supporting structure comprising hollow, tublar element (1), which are put together with parallel axes to form an interlocking entity without any binder as a composite layer, in which the element (1), respectively lying only loosely against one another with linear contact, are held together by a frame (2) or the like extending around the element structure and determining the flexural elesticity of the structure by its own restraining force, each of the elements (1) having a circular middle cross section (3) starting from the circumference of which the generated convex half-surfaces of the element (1), go over in a smoothly curved manner to the two element ends, the edge contour (4) of which repectively has the form of a flat ellipse having pointed major-axis vertices (5), the major axes (7, 8) of which, lying normal to the longitudinal axis (6) of the element, are turned by90°with respect to each other about the longitudinal axis (6) of the element, the axial ratio of the two ellipse axes (7, 8) in a cross section lying normal to the longitudinal axis (6) of the element increasing continuously from the center of the element (1) respectively to its ends.

REFERENCES:
patent: 5738924 (1998-04-01), Sing
Arcady Dyskin, et al., “Toughening by Fragmentation—How Topology Helps”, Advanced Engineering Materials, 2001, vol. 3, No. 11, pp. 885-888.

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