Experimental study of high temperature mechanical and fatigue behaviours of sicp_a356 composites for brake disc
Wang, Wenjing, Li, Qiang and Barton, Janice (2007) Experimental study of high temperature mechanical and fatigue behaviours of sicp_a356 composites for brake disc. In, ECCOMAS Thematic Conference on Mechanical Response of Composites, Porto, Portugal, 12 - 14 Sep 2007. Porto, Portugal, ECCOMAS9pp.
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Mechanical and low cycle fatigue behaviours of SiCp_A356 composite at room and elevated temperature are investigated by experiments. The yield stress, tensile stress and Young’s modulus drop obviously with the rising temperature. The hardening cycle occurs between 200C and 1500C, but weakens with rising temperature. The softening cycle appears between 2000C and 3000C, but increases with rising temperature. The relaxation performance is similar to that of a standard metal material. The low cycle fatigue behaviour of SiCp_A356 agrees with the equation of Manson-Coffin, which is severely affected by temperature, espe-cially for small strain amplitudes. The cyclic thermal elasto-plastic and creep constitutive models are presented for the brake disc stress-strain analysis and life prediction. Finally the micro fracture mechanics is analyzed.
|Item Type:||Conference or Workshop Item (Paper)|
|Keywords:||SiCp_A356 composite, Monotonic and Cyclic Mechanical Behaviour, Stress Relaxation, Low Cycle Fatigue|
|Subjects:||T Technology > TJ Mechanical engineering and machinery
T Technology > TF Railroad engineering and operation
|Divisions:||University Structure - Pre August 2011 > School of Engineering Sciences
University Structure - Pre August 2011 > School of Engineering Sciences > Fluid-Structure Interactions
|Date Deposited:||22 Jan 2008|
|Last Modified:||02 Mar 2012 12:30|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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