| 座舱玻璃划伤容限研究 |
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| 引用本文： | 张志林,姚卫星,傅祥炯.座舱玻璃划伤容限研究[J].航空学报,2004,25(6):569-572. |
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| 作者姓名： | 张志林 姚卫星 傅祥炯 |
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| 作者单位： | 1. 南京航空航天大学,飞行器系,江苏,南京,210016
2. 西北工业大学,飞机系,陕西,西安,710072 |
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| 基金项目： | 博士点基金(20020287022)，国家自然科学基金，中国航空工业第一集团公司航空科技联合基金(10377007)资助项目 |
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| 摘 要： | 建立了座舱玻璃MDYB 3划伤模型,通过大量试验得出了MDYB 3玻璃表面裂纹断裂韧度和表面划伤扩展门槛值,建立了座舱玻璃划伤剩余强度准则和划伤容限计算方法,基于试验和分析结果,给出了9mm厚MDYB 3玻璃划伤容限值,为外场划伤分析处理提供了简便易行的方法。
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| 关 键 词： | 有机玻璃 划伤 损伤容限 剩余强度 门槛值 |
| 文章编号： | 1000-6893(2004)06-0569-04 |
| 修稿时间： | 2003年10月13 |
Investigation on Scratch Tolerance of the Cabin Glass |
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| ZHANG Zhi-lin,YAO Wei-xing,FU Xiang-jiong.Investigation on Scratch Tolerance of the Cabin Glass[J].Acta Aeronautica et Astronautica Sinica,2004,25(6):569-572. |
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| Authors: | ZHANG Zhi-lin YAO Wei-xing FU Xiang-jiong |
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| Institution: | ZHANG Zhi-lin~1,YAO Wei-xing~1,FU Xiang-jiong~2 |
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| Abstract: | A scratch geometry model of aircraft cabin glass is established through the investigation on the causes of scratch yielding and census of the scratch defects. Specimens of MDYB-3 glass are tested to obtain the fracture toughness of surface cracks and the threshold of scratch propagation, then the prediction methods of the residual strength and the scratch tolerance for the MDYB-3 glass with scratch defects are developed. The scratch tolerance value of MDYB-3 glass plate of 9mm thickness are determined based on the experimental results and analysis, which provides a simple method for the treatment of scratch defects in aircrafts disposed outfield. |
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| Keywords: | plexiglas scratch defect tolerance residual strength threshold value |
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