Experimental investigation of the mechanical properties of zinc-5% aluminum-mixed mischmetal alloy-coated steel strand cables. (10th February 2020)

• Record Type: Journal Article
• Authors: Sun, Guojun; Yuan, Jun; Xue, Suduo; Yang, Yuan; Mensinger, Martin
• Is Part Of: Construction & building materials. Volume 233(2020)
• Publication Date: 2020-02-10
• Subjects: Zinc-5% aluminum-mixed mischmetal alloy-coated -- Steel strand cable -- Ramberg and Osgood models -- Stress-strain curves -- Mechanical properties; Building materials -- Periodicals; 624.18
• DOI: 10.1016/j.conbuildmat.2019.117310
• Languages: English
• ISSNs: 0950-0618

Abstract

Highlights: The mechanical properties of 24 M-C cables were tested with 6 kinds of diameters. M-C cable exhibit typical nonlinear characteristic as the increasing of stretching. An improved constitutive model predicts well mechanical properties of M-C cable. FE models simulate well stress-strain behaviours of cables with varying diameters. Friction has slight influence on the longitudinal mechanical properties of cable. Abstract: This study investigated the mechanical properties of zinc-5% aluminum-mixed mischmetal alloy-coated steel strand cables (M-C cables) with diameters ranging from 12 mm to 22 mm. A total of 24 tensile tests were conducted to obtain the nominal yield strength, ultimate strength, elastic modulus, fracture strain, and stress-strain curves for M-C cables with varying diameters. The stress-strain curves of the test specimens were fitted using the modified Ramberg and Osgood models to obtain stress-strain models for M-C cables with different diameters. Based on the actual boundary of the cable used in engineering practice, a new finite element model was established with ABAQUS finite element analysis software. Based on the finite element model, the development of the stress in each layer of steel wire, change in the contact pressures between the wires, and the friction energy dissipation between the wires were analyzed with continuous elongation of the cable.