内蒙古工业大学学报(自然科学版)
內矇古工業大學學報(自然科學版)
내몽고공업대학학보(자연과학판)
JOURNAL OF INNER MONGOLIA UNIVERSITY OF TECHNOLOGY(NATURAL SCIENCE EDITION)
2014年
3期
182-187
,共6页
张晓燕%郎风超%邢永明%周承恩%侯晓虎%姜爱峰
張曉燕%郎風超%邢永明%週承恩%侯曉虎%薑愛峰
장효연%랑풍초%형영명%주승은%후효호%강애봉
叠层板复合材料%单纤维压入实验%界面剪切强度%界面剪切模量
疊層闆複閤材料%單纖維壓入實驗%界麵剪切彊度%界麵剪切模量
첩층판복합재료%단섬유압입실험%계면전절강도%계면전절모량
Laminated plates composite material%Single -fiber push -out test%T he interfacial shear strength%The interfacial shear modulus
界面剪切强度是复合材料设计的重要指标,如何通过试验方法测定复合材料的界面性能是复合材料研究的一个重要领域。本文以硼纤维/环氧树脂叠层板(0/90)复合材料为载体,利用S-3400扫描电镜(SEM)与Gatan公司的拉伸台Microtest 2000组合,且在电镜上安装了自行设计制作的单纤维压头,测定界面的剪切强度。得知:在室温负荷作用下硼纤维呈阶梯式脱粘,当压出硼纤维长度为总压出长度约一半时,界面剪切强度达到最大值,并估算出界面的剪切模量,为进一步有限元法模拟研究复合材料的界面的力学行为提供依据。
界麵剪切彊度是複閤材料設計的重要指標,如何通過試驗方法測定複閤材料的界麵性能是複閤材料研究的一箇重要領域。本文以硼纖維/環氧樹脂疊層闆(0/90)複閤材料為載體,利用S-3400掃描電鏡(SEM)與Gatan公司的拉伸檯Microtest 2000組閤,且在電鏡上安裝瞭自行設計製作的單纖維壓頭,測定界麵的剪切彊度。得知:在室溫負荷作用下硼纖維呈階梯式脫粘,噹壓齣硼纖維長度為總壓齣長度約一半時,界麵剪切彊度達到最大值,併估算齣界麵的剪切模量,為進一步有限元法模擬研究複閤材料的界麵的力學行為提供依據。
계면전절강도시복합재료설계적중요지표,여하통과시험방법측정복합재료적계면성능시복합재료연구적일개중요영역。본문이붕섬유/배양수지첩층판(0/90)복합재료위재체,이용S-3400소묘전경(SEM)여Gatan공사적랍신태Microtest 2000조합,차재전경상안장료자행설계제작적단섬유압두,측정계면적전절강도。득지:재실온부하작용하붕섬유정계제식탈점,당압출붕섬유장도위총압출장도약일반시,계면전절강도체도최대치,병고산출계면적전절모량,위진일보유한원법모의연구복합재료적계면적역학행위제공의거。
The interfacial shear strength is an important property of composite materials .The ex-perimental determination of the interfacial properties of composite materials is an important area of composite materials research .Based on the Boron fiber/Epoxy Laminated plates (0/90) composite ma-terial ,the S -3400 scanning electron microscope (SEM ) has been combined with a Gatan's station Mi-crotest 2000 ,and a single fiber head was installed in the electron microscope to determine the interface shear strength with the single -fiber push-out test .Load-displacement curves demonstrate that the Boron fiber appear step -debonding phenomena at room temperature .The interfacial shear strength reaches a maximum when boron fiber pushing -out reaches half of the total pushing -out length .The interfacial shear modulus is obtained from the experimental data .The experimental method was proved to be successful in the studying of interface properties of fiber material ,experimental datas was helpful for further understanding of the mechanical behavior of composite material interface .