Mechanical characterisation of anisotropic stress softening in carbon black filled rubber

• Published in: Plastics, rubber & composites Vol. 42; no. 1; pp. 19 - 25
• Main Authors: Kahraman, H, Haberstroh, E
• Format: Journal Article
• Language: English
• Published: London, England Taylor & Francis 01.02.2013; SAGE Publications; Maney
• Subjects: Anisotropy; Applied sciences; Carbon black; Carbon black filled chloroprene rubber; Composites; Deformation energy; Deformation induced anisotropy; Exact sciences and technology; Forms of application and semi-finished materials; Mullins effect; Polymer industry, paints, wood; Polymers; Rubber; S shape; Softening; Stress softening; Stress-strain relationships; Stresses; Stretching; Technology of polymers; S shape; Mullins effect; Carbon black filled chloroprene rubber; Stress softening; Deformation energy; Deformation induced anisotropy; Diene polymer; Carbon black; Strain softening; Stress strain relation; Mechanical properties; Tensile property; Chloroprene polymer; Experimental study; Polymer filler interaction; Anisotropy; Concentration effect
• ISSN: 1465-8011; 1743-2898
• DOI: 10.1179/1743289812Y.0000000026

The deformation induced stress softening strongly influences the material behaviour of the filled rubber and is a very complex issue. For the description of the anisotropic Mullins effect, there is still a lack of suitable experimental data. For this purpose, experiments with carbon black filled chloroprene rubber (CR) were carried out using multiple load steps. After repeated stretching in the same direction, a subsequent first loading in any other direction is characterised by a different stress-strain behaviour compared to the stabilised curve of the previous load. In order to emphasise the influence of the secondary loading direction on the material behaviour during that loading process, characteristic values are defined.