复合材料学报
複閤材料學報
복합재료학보
ACTA MATERIAE COMPOSITAE SINICA
2001年
2期
109-113
,共5页
燕瑛%楼畅%成传贤%章怡宁%杨旭
燕瑛%樓暢%成傳賢%章怡寧%楊旭
연영%루창%성전현%장이저%양욱
机织复合材料%细观结构%性能评定%分析软件%实验验证
機織複閤材料%細觀結構%性能評定%分析軟件%實驗驗證
궤직복합재료%세관결구%성능평정%분석연건%실험험증
建立了预测机织复合材料弹性性能和强度的方法并进行了相应的实验研究,系统地研究了织物几何和结构参数对机织复合材料性能的影响,提出了优化机织复合材料弹性性能细观结构参数的选择,完成了具有友好界面的机织复合材料弹性性能分析软件,实验研究了冲击后的拉伸与压缩性能及疲劳剩余强度和寿命,建立了基于有限元分析和失效准则预测冲击能门槛值的方法,给出了预估疲劳寿命的公式,且实验验证了分析方法的正确性.为复合材料技术能更快地转移到飞机结构设计与制造中去提供了一套较完整的基础性数据和理论分析方法及工具.
建立瞭預測機織複閤材料彈性性能和彊度的方法併進行瞭相應的實驗研究,繫統地研究瞭織物幾何和結構參數對機織複閤材料性能的影響,提齣瞭優化機織複閤材料彈性性能細觀結構參數的選擇,完成瞭具有友好界麵的機織複閤材料彈性性能分析軟件,實驗研究瞭遲擊後的拉伸與壓縮性能及疲勞剩餘彊度和壽命,建立瞭基于有限元分析和失效準則預測遲擊能門檻值的方法,給齣瞭預估疲勞壽命的公式,且實驗驗證瞭分析方法的正確性.為複閤材料技術能更快地轉移到飛機結構設計與製造中去提供瞭一套較完整的基礎性數據和理論分析方法及工具.
건립료예측궤직복합재료탄성성능화강도적방법병진행료상응적실험연구,계통지연구료직물궤하화결구삼수대궤직복합재료성능적영향,제출료우화궤직복합재료탄성성능세관결구삼수적선택,완성료구유우호계면적궤직복합재료탄성성능분석연건,실험연구료충격후적랍신여압축성능급피로잉여강도화수명,건립료기우유한원분석화실효준칙예측충격능문함치적방법,급출료예고피로수명적공식,차실험험증료분석방법적정학성.위복합재료기술능경쾌지전이도비궤결구설계여제조중거제공료일투교완정적기출성수거화이론분석방법급공구.
A prediction of the elastic property and strength of woven composites was established. Corresponding experimental studies were completed. The effects of various structural and geometrical parameters on the properties of woven composites were studied systematically. Fabric micro-structural parameter determination for optimizing the elastic properties of woven composites was provided. A code with user-friendly interface has been developed to provide an efficient calculation tool in selecting the best fabric reinforcement for structural composites. Tensile and compressive strength after impact, residual fatigue strength and fatigue life were evaluated experimentally. A finite element analysis coupled with failure criteria was developed to predict the impact threshold energy of the composites. Equations of predicting the fatigue life for woven composites were provided. Comparison of experimental data with the prediction results shows good agreement, thus confirming the usefulness of the predictions.