| 复合材料加筋板压缩过程的全场光学检测 |
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| 引用本文： | 詹乐昌,雷振坤,白瑞祥.复合材料加筋板压缩过程的全场光学检测[J].固体力学学报,2011(Z1). |
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| 作者姓名： | 詹乐昌 雷振坤 白瑞祥 |
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| 作者单位： | 工业装备结构分析国家重点实验室大连理工大学工程力学系; |
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| 基金项目： | 国家自然科学基金项目(10972047,11172054); 中央高校基本科研业务费专项资金资助 |
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| 摘 要： | 数字投影条纹形貌测量方法具有非接触、全场性、测试仪器结构简单及测量精度高和实时自动处理等优点,能实时检测物体表面形貌的演化过程.使用四幅正弦相移条纹图像循环投影到正交肋增强的复合材料层合板上,采用相移法实时监测层合板在压缩过程中的形貌变化过程.测量结果显示复合材料层合板在各个正交增强网格内出现局部屈曲波包,在端部附近网格内表现为波峰,而在中间附近网格内显示为波谷.通过对指定位置的挠度分析可知,在整体试样弯曲的基础上,网格内的局部屈曲挠度随载荷而增加,实验测量数据有利于探讨其破坏机理及失效模式.
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| 关 键 词： | 屈曲模态 相位分析 正交肋增强复合材料层合板 投影条纹形貌法 |
FULL-FIELD OPTICAL MEASUREMENT FOR COMPOSITE LAMINATES PANEL UNDER COMPRESSION |
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| Lechang Zhan Zhenkun Lei Ruixiang Bai.FULL-FIELD OPTICAL MEASUREMENT FOR COMPOSITE LAMINATES PANEL UNDER COMPRESSION[J].Acta Mechnica Solida Sinica,2011(Z1). |
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| Authors: | Lechang Zhan Zhenkun Lei Ruixiang Bai |
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| Institution: | Lechang Zhan Zhenkun Lei Ruixiang Bai(State Key Laboratory of Structural Analysis for Industrial Equipment,Dept.of Engin.Mech.,Dalian Univ.of Tech.,Dalian,116024) |
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| Abstract: | In this paper,four phase-shifted sinusoidal fringe images are circularly projected on the surface of a composite laminates plate reinforced with crossed ribs.Phase shifting technique is applied to inspect the surface profile of the composite plate during compression.The experimental results reveal that the local buckling wave bumps appear on the every crossed-rib grids of the composite panel.The wave peaks appear on the ends of the panel and the wave valleys occur at the middle of the panel.The deflection o... |
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| Keywords: | buckling mode phase analysis crossed-rib reinforced composite fringe projection profilometry |
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