Effect of Sunshine Treatment on Strength in Al 6061/AFRP Hybrid Composite

Al 6061/AFRP 하이브리드 복합재료의 강도특성에 미치는 내후성 영향

  • Published : 1997.11.01

Abstract

This research is to evaluate the effect of sunshine treatment on the strength in the Al 6061/AFRP hybrid composite(APAL). APAL specimens were processed by autoclave curing system under the constant condition of curing temperature, time and aluminum surface pertreatment. Aramid patched aluminum alloy can be widely used for the repair of the damage part of the aircraft. The tensile strength of the sunshine treated APAL 2P and 6P composite is 14%, 22% smaller than that of the non-treated material. The interlaminar shear strength of the APAL specimens for the adhesive length of 5mm is 24% higher than that of the APAL for the adhesive length of 10mm. In the case of APAL DS 1P material, interlaminar shear strength of the specimen which was sunshine treated for 200 hours is 21% smaller than that of the non-treated material while interlaminar shear strength of the specimen which was immersed in a 70.deg. C fresh water for 1200 hours decreases by 75.7%.

Keywords

References

  1. Navy Contract N62269-79-0271 Composite Patches for Metal Structure Ratwani, M.M.;Labor, J.D.
  2. MTL-HDBK-337 Military Standardization Handbook Adhesive Bonding Aerospace Structure Repair
  3. Fatigue Fract. Eng. Mater. Struct. v.14 no.10 Fatigue Crack Growth through ARALL-4 at the Ambient Temperature Dividson, D.L.;Austin, L.K.
  4. MTL-HDBK-377 Military Standardization Handbook Adhesive Bonding Aerospace Structure Repair
  5. Journal of Composite Materials v.23 Moisture Absorption and Fracture Toughness of PEEK Polymer and Graphite Fiber Reinforced PEEK Wang, O.
  6. Journal of Composite Materials v.26 no.14 Effect of Seawater Immersion on the Impact Resistance of Glass Fiber Reinforced Epoxy Composite Larry, H.S.;Mark, L.K.;Maurice, F.A.
  7. 대한기계학회 1996년 춘계학술대회 논문집(A) 페놀 복합재의 습도 환경에 대한 기계적 특성 평가 김태우;이재학;이시영
  8. 한국해양공학회지 v.10 no.4 CFRP 복합재료의 층간파괴인성치에 미치는 수분의 영향 김형진;김종훈;고성위;김엄기
  9. J. of KSME v.8 no.4 The Effect of Bridging on Fatigue Crack Growth Behavior in Aramid Patched Aluminum(APAL) Yoon, H.K.;Oh, S.W.;Park, W.J.;Lee, K.B.;Hue, C.W.
  10. 대한용접학회지 v.12 no.4 AFRP 본딩에 의한 알루미늄 판재의 피로균열전파저항에 관한 연구 윤한기;오세욱;박원조;허정원
  11. 대한기계학회논문집 v.19 no.4 알루미늄 합금판재에 FRP 라미네이트를 보강한 APAL 및 CPAL재의 균열전파속도거동 윤한기;정해용;박원조;허정원
  12. ASTM D 3039 Standard Test Method for Tensile Properties of Fiber Resin Composites
  13. ASTM D 3846 Standard Test Method for In-Plane Shear Strength of Reinforced Plastics
  14. Techinical Report, AFML-TR-68-391 Feasibility of Joining Advanced Composite Flight Vehicle Structures Kutsche, D.;Hofor, K.E.