Effect of Defects on Bending Mechanical Property of High Temperature Alloy Honeycomb Panels

WANG Qi; TONG Guoquan; CHEN Feng

doi:10.16080/j.issn1671-833x.2017.1/2.106

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Effect of Defects on Bending Mechanical Property of High Temperature Alloy Honeycomb Panels

更新时间：2025-10-30

- Effect of Defects on Bending Mechanical Property of High Temperature Alloy Honeycomb Panels
- Aeronautical Manufacturing Technology Vol. 60, Issue 1/2, (2017)
- 作者机构：
  
  南京航空航天大学机电学院,南京,210016
- 作者简介：
- 基金信息：
- DOI：10.16080/j.issn1671-833x.2017.1/2.106
  CLC：
- Published：2017
- 稿件说明：
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王琦，童国权，陈峰，马振武，杨钦鑫. 缺陷对高温合金蜂窝板弯曲力学性能的影响*[J]. 航空制造技术, 2017, 60(1/2): 106-111. WANG Qi, TONG Guoquan, CHEN Feng, MA Zhenwu, YANG Qinxin. Effect of Defects on Bending Mechanical Property of High Temperature Alloy Honeycomb Panels. Aeronautical Manufacturing Technology, 2017, 60(1/2): 106-111.

WANG Qi, TONG Guoquan, CHEN Feng. Effect of Defects on Bending Mechanical Property of High Temperature Alloy Honeycomb Panels[J]. Aeronautical Manufacturing Technology, 2017, 60(1/2).
王琦，童国权，陈峰，马振武，杨钦鑫. 缺陷对高温合金蜂窝板弯曲力学性能的影响*[J]. 航空制造技术, 2017, 60(1/2): 106-111. WANG Qi, TONG Guoquan, CHEN Feng, MA Zhenwu, YANG Qinxin. Effect of Defects on Bending Mechanical Property of High Temperature Alloy Honeycomb Panels. Aeronautical Manufacturing Technology, 2017, 60(1/2): 106-111. DOI： 10.16080/j.issn1671-833x.2017.1/2.106.

WANG Qi, TONG Guoquan, CHEN Feng. Effect of Defects on Bending Mechanical Property of High Temperature Alloy Honeycomb Panels[J]. Aeronautical Manufacturing Technology, 2017, 60(1/2). DOI： 10.16080/j.issn1671-833x.2017.1/2.106.

摘要

采用预埋缺陷的方法，制备含有面芯脱焊缺陷的高温合金蜂窝板，进行了三点弯曲试验，研究了缺陷形状、大小、位置和蜂窝芯取向对蜂窝板三点弯曲损伤模式和承载能力的影响。研究发现，含面芯脱焊缺陷的蜂窝板在缺陷受压部位产生反向鼓包，并沿着宽度方向扩展为完全破坏；随着缺陷尺寸的增大，蜂窝板承载能力逐渐降低；当缺陷位于三点弯曲受拉面时，蜂窝板具有更高的三点弯曲极限载荷，且矩形缺陷试样的弯曲极限载荷要高于相同缺陷面积的圆形试样。最后，利用LS-DYNA 对含圆形缺陷高温合金蜂窝板的三点弯曲性能进行了数值模拟分析，得到其三点弯曲过程中的应力分布状态。

Abstract

In the method of defects presets

high temperature alloy honeycomb panels with desoldering are made and the influence on damage mode and load capacity caused by defects shape

size

location and core tropism are studied by three point bending test. The investigation shows that reverse bulge appears in the defects compression area and extends to complete damage along the width direction and the load capacity of the honeycomb panel reduces along with the rising of defect size. When the defect is located in the extruded area

the honeycomb panels will have higher ultimate bending load and that of rectangular defect sample is higher than that of circular defect sample. Finally

in order to get the stress distribution state in bending process

the three point bending performance of high temperature alloy honeycomb panels with circular defect is analyzed by numerical simulation based on LS-DYNA.

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