Mechanism Analysis of Spalling Defect on Rail Surface under Rolling Contact Conditions

<table class="fixed-width table-group" id="tab1"><tr><td><table class="table"><colgroup><col style="width:5.18em"/><col style="width:7.07em"/><col style="width:5.18em"/><col style="width:7.07em"/><col style="width:7.07em"/></colgroup><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td class="align_left">Type of rail</td><td class="align_center">Young’s modulus/GPa</td><td class="align_center">Poisson’s ratio</td><td class="align_center">Yield strength/MPa</td><td class="align_center">Tangent modulus/GPa</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left">U71Mn steel</td><td class="align_center">210</td><td class="align_center">0.3</td><td class="align_center">550</td><td class="align_center">21</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Mechanical properties of steel (U71Mn).</div>

Mathematical Problems in Engineering

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Table 1

Table 1: Mechanism Analysis of Spalling Defect on Rail Surface under Rolling Contact Conditions 