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首页> 外文期刊>American Journal of Mechanical and Industrial Engineering >Anisotropic Damage of Low-Alloy Steel Plates Under Uniaxial Tension After Alternating Bending
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Anisotropic Damage of Low-Alloy Steel Plates Under Uniaxial Tension After Alternating Bending

机译：低合金钢板交替弯曲后的单轴拉伸各向异性损伤

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摘要

Effect of low-cycle alternating bending and the crystallographic texture on the damage anisotropy of mild steel sheets DC01 (St 1.0330) at subsequent uniaxial tensile tests was examined. Analysis of anisotropy sheet material damage was performed using a symmetric tensor of damage D of the second order. In the case of uniaxial stress is not equal to zero only the sole component of this tensor. This component D was defined by the formula img border="0" width="86" height="25" src="http://article.sciencepublishinggroup.com/journal/248/2480980/image001.gif" /, where img border="0" width="21" height="20" src="http://article.sciencepublishinggroup.com/journal/248/2480980/image002.gif" / is the elastic modulus of intact material; E is the current modulus determined at uniaxial tensile tests. Anisotropy of mechanical properties and damage take place in steel sheets at uniaxial tensile tests after deformation by alternating bending. The averaged damage of steel sheets at uniaxial tensile tests has minimal value after 3 cycles of alternating bending. The averaged damage of steel at uniaxial tensile tests increases with the intensity increase of "brittle" components of type {001} || ND in the texture after alternating bending. Damage of steel at uniaxial tensile tests decreases with the intensity growth of "viscous" components such as {110}, {112}, {111} parallel to the rolling plane in the texture after alternating bending.
机译：在随后的单轴拉伸试验中，研究了低周交替弯曲和晶体织构对低碳钢板DC01（St 1.0330）的损伤各向异性的影响。各向异性片材损伤的分析是使用二次损伤的对称张量D进行的。在单轴应力不等于零的情况下，仅该张量的唯一分量。该组件D由公式 border =“ 0” width =“ 86” height =“ 25” src =“ http://article.sciencepublishinggroup.com/journal/248/2480980/image001.gif” />定义，其中 border =“ 0” width =“ 21” height =“ 20” src =“ http://article.sciencepublishinggroup.com/journal/248/2480980/image002.gif” />是完整的弹性模量材料; E是在单轴拉伸试验中确定的电流模量。交替弯曲变形后，在单轴拉伸试验中，钢板的力学性能和损伤是各向异性的。经过3次交替弯曲后，单轴拉伸试验中钢板的平均损伤值很小。在单轴拉伸试验中，钢的平均损伤随{001}型“脆性”组件强度的增加而增加。 ND在交替弯曲后的纹理中。单轴拉伸试验中钢的损伤随着交替弯曲后“ {粘}”组分（例如，{110}，{112}，{111}）在织构中平行于轧制平面的强度增加而减小。

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