JP6682811B2 - 繊維強化複合材料の界面接着強度検査方法および試験片 - Google Patents
繊維強化複合材料の界面接着強度検査方法および試験片 Download PDFInfo
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- JP6682811B2 JP6682811B2 JP2015219993A JP2015219993A JP6682811B2 JP 6682811 B2 JP6682811 B2 JP 6682811B2 JP 2015219993 A JP2015219993 A JP 2015219993A JP 2015219993 A JP2015219993 A JP 2015219993A JP 6682811 B2 JP6682811 B2 JP 6682811B2
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Description
110 繊維強化複合材料
111 第一の強化繊維層
112 第二の強化繊維層
113 第三の強化繊維層
114 強化繊維
115 基材
121 保護層
122 保護層
901 圧子
902 支点
903 支点
A 圧子の軸線
F 基材と強化繊維との界面剥離
Claims (3)
- 樹脂基材に対して強化繊維を配列させた強化繊維層からなる試験片の界面接着強度検査方法であって、
前記試験片は、第1の強化繊維層と第2の強化繊維層との間に第3の強化繊維層とが積層された積層体を備え、
前記第1の強化繊維層と第2の強化繊維層は、夫々、強化繊維が、前記積層体の幅方向に配向されている90°層を備え、
前記第3の強化繊維層は、前記第1の強化繊維層と前記第2の強化繊維層との前記強化繊維の配向方向とは直交するように、強化繊維が配向された0°層を備え、
前記試験片は、さらに、前記積層体の両面を保護する保護フィルムを備え、
前記積層体を前記試験片の曲げ試験機にセットする際、
前記積層体の前記第1の強化繊維層を、前記保護フィルムを介して第1の支点と第2の支点とで支持し、
前記積層体の前記第2の強化繊維層を、前記保護フィルムを介して、圧子で支持し、
前記第1の支点、前記第2の支点、そして、前記圧子の夫々の軸方向が前記第1の強化繊維と第2の強化繊維との配向方向になるようにして前記圧子に負荷を与え、
前記第1の強化繊維層における、前記樹脂基材と前記強化繊維との界面状態を観察できるようにした、界面接着強度検査方法。 - 炭素繊維と、ガラス繊維と、アラミド繊維と、炭化ケイ素繊維と、セラミック繊維と、
金属繊維とからなる群から一つ以上選択される強化繊維を含む繊維強化複合材料の試験片に負荷をかける請求項1に記載される繊維強化複合材料の界面接着強度検査方法。 - 試験片に一回以上負荷をかけ、基材と強化繊維との界面状態を段階的に観察する請求項1又は2に記載される繊維強化複合材料の界面接着強度検査方法。
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