Abstract
The developing of the universal tool for testing of tensile properties of hexagonal steel wire mesh for civil engineering is described in this paper. The developed tool allows repeated testing of hexagonal steel wire mesh of different dimensions without tool changes and is generally related with the procedure for the determination of tensile strength properties of different wire meshes. The construction of the tool which is related to the aims of the decreased mass consumption and high operation safety is described in detail. Particular attention is focused on the safety component of the tool which ensuring safety testing by preventing slipping of the wire mesh samples during loading. The paper also presents the Finite Element Analysis performed in order to verify the high safety factor of the developed tool. The contact regions with stress concentration behavior are analyzed by non-linear solvers. The obtained results and conclusion about the possible contributions of the developed universal tool for extensively testing of wire meshes for civil engineering are discussed.
Highlights
Tensile testing machines are the essential equipment for testing mechanical properties of hexagonal steel wire mesh as a part of the regular quality control
New design underlines the specific requirements of a tool for tensile testing of hexagonal steel wire mesh only, which are: user-friendly construction, availability for testing on many tensile machines and flexibility for all dimensions defined by existing standards
This paper describes the design of a universal tool for testing of tensile properties of hexagonal steel wire mesh, which meets appropriate standard requirements and allows testing on all tensile testing machines with suitable test range
Summary
Tensile testing machines are the essential equipment for testing mechanical properties of hexagonal steel wire mesh as a part of the regular quality control. The available and existing grips are commonly constructed for testing wires and various types of tensile specimens which means that they are not suitable for testing. An alternative approach is to design and use specific tool with a gripping system that is compatible with existing one on the tensile testing machine. New design underlines the specific requirements of a tool for tensile testing of hexagonal steel wire mesh only, which are: user-friendly construction, availability for testing on many tensile machines and flexibility for all dimensions defined by existing standards. The rough sketch of such tools for testing hexagonal steel wire mesh in civil engineering applications is defined by standard EN 10223-3:2013 [1]. The authors [4] constructed specific testing and gripping tool for wire mesh, for one dimension only and without applied safety measures. Similar tools with limited applicability, which means that the tool is suitable for testing only one dimension of wire mesh, can be found in production lines of some producers of testing equipment [5, 6]
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