复合材料压损设计许用值试验研究
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- 英文论文题名：Test and Research of Allowable Design Value for Composite Crippling
- 论文作者：黄金昌 ; 毕金英 ; 于洪
- 英文论文作者：Huang Jinchang ; Bi Jinying ; Yu Hong ; Shenyang Institute of Aircraft Design and Research
- 年：2016
- 作者机构：沈阳飞机设计研究所;
- 论文关键词：复合材料 ; 压损 ; 设计许用值 ; 试验 ; 研究
- 英文论文关键词：composite material ; crippling ; allowable design value ; test ; research
- 会议召开时间：2016-10-31
- 会议录名称：探索 创新 交流（第7集）——第七届中国航空学会青年科技论坛文集（上册）
- 英文会议录名称：Discovery,Innovation and Communication——Proceedings of 7th CSAA Science and Technology Youth Forum
- 语种：中文
- 分类号：TB33
- 学会代码：ZGHU
- 会议名称：探索 创新 交流（第7集）——第七届中国航空学会青年科技论坛
- 会议地点：中国广东中山
- 主办单位：中国航空学会
- 学会名称：中国航空学会
- 页数：8
- 文件大小：2057k
- 原文格式：O
- 会议级别：全国
摘要
复合材料压损设计许用值是复合材料结构设计的重要参数之一。本文以复合材料积木式试验为研究基础,从元件级无孔板压缩试验中获得工艺批次影响因子C_(BB),从细节件级压损试验中获得湿热环境影响因子C_(EN)和不同(b/t)下的压损破坏强度S_(RTD),最终通过工程经验公式得出复合材料压损设计许用值S_(CR)。本研究成果实现了国内民机复合材料领域压损设计许用值从无到有的突破,解决了长久以来工程师仅靠理论计算分析获取压损强度准确性低、可靠性差的设计现状。
Allowable design value for composite crippling is one of the most important parameters in composite structure design.This paper is based on the building block approach of composite,the processing batch influencing factor C_(BB) has been got from coupon level unnotched compressive strength test results,while the environment influencing factor C_(EN) and the compressive strength S_(RTD) in different(b/t) s have been got from the detail level crippling test.Finally,the allowable design value for composite crippling S_(OT) is obtained with the help of experience formulas for engineering.These research gains have achieved a breakthrough of the allowable design value for composite crippling from scratch in domestic civil aircraft composite field and overcome the reality that engineers get compressive strength only with theoretical analysis for a long time,which is inaccurate and unreliable.
Allowable design value for composite crippling is one of the most important parameters in composite structure design.This paper is based on the building block approach of composite,the processing batch influencing factor C_(BB) has been got from coupon level unnotched compressive strength test results,while the environment influencing factor C_(EN) and the compressive strength S_(RTD) in different(b/t) s have been got from the detail level crippling test.Finally,the allowable design value for composite crippling S_(OT) is obtained with the help of experience formulas for engineering.These research gains have achieved a breakthrough of the allowable design value for composite crippling from scratch in domestic civil aircraft composite field and overcome the reality that engineers get compressive strength only with theoretical analysis for a long time,which is inaccurate and unreliable.
引文
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[2]Renieri M P and Garrett R A.Investigation of the Local Buckling,Postbuckling and Crippling Behavior of Graphite/Epoxy Short Thin-Walled Compression Members[R].McDonnell Aircraft Report MDC A7091,NASC,July 1981.
[3]ASTM D 5229/D 5229M-92(04).聚合物基复合材料吸湿性能和浸润平衡的标准试验方法.2004.
[4]ASTM D 6641/D 6641M-09.聚合物基复合材料层压板压缩性能的标准试验方法.2009.
[5][美]牛春匀.实用飞机复合材料结构设计与制造.北京:航空工业出版社,2010.
[6]沈真.美国军用手册MIL-HDBK-17F复合材料手册(第一卷).西安:西北工业大学,2002.
[7]沈真.复合材料抗冲击性能和结构压缩设计许用值[J].航空学报,2007.
[8]朴春雨.典型加筋板的优化设计[J].飞机设计.2003.
[9]卢文书.复合材料加筋板壳的稳定性及强度分析系统[J].航空学报,2009.
[10]崔德刚.结构稳定性设计手册[R].北京:航空工业出版社.1996.