표제지
목차
國文要略 12
제1장 서론 13
1.1. 연구 배경 13
1.2. 연구 목표 14
제2장 이론적 배경 15
2.1. 섬유복합재료 15
2.2. 복합재료의 제조 방법 18
(1) 필라멘트 와인딩(Filament Winding) 18
(2) 진공백 성형(Vacuum Bag Molding) 19
(3) RTM(Resin Transfer Molding) 19
(4) 압축 성형(Compression Molding) 20
(5) SMC(Sheet Molding Compound) 21
(6) LFT(Long Fiber Thermoplastic) 21
2.3. 복합재 이론 22
제3장 기초 물성 측정 23
3.1. 복합재료 선정 및 복합재료/혼합 복합재료 물성평가 23
3.1.1. 재료선정에 필요한 선진 기술자료 분석 및 벤치마킹 연구 23
3.1.2. 재료선정을 위한 기계적 물성평가 25
3.1.3. 복합재료의 내부식성(염수분무시험) 평가 32
3.1.4. 복합재료 및 혼합 복합재료 물성평가 34
제4장 압축진개차 설계 및 제작 47
4.1. 적재함 내외부 설계도 47
4.2. 배출판 내외부 설계 및 제작 54
4.3. 복합재 적용 테일게이트 설계 및 제작 59
4.4. 복합재 적용으로 인한 특장차체 경량화 61
제5장 압축진개차 구조안정성 해석 62
5.1. 복합재료 적재함 3D 모델링 및 해석조건 제시 62
5.2. 복합재료 적재함 3D 모델링 해석결과 64
제6장 결론 68
References 70
Abstract 73
Table 3.1. Mechanical strength results of commercially available resins 23
Table 3.2. Data research on glass fiber roving 24
Table 3.3. ASTM D 2290 Tensile Test Results 26
Table 3.4. Test result of ASTM D 3039, 0° 29
Table 3.5. Test results for ASTM D 3039, 90° 29
Table 3.6. ASTM D 790, 0° test result 30
Table 3.7. ASTM D 3518, 0° test result 31
Table 3.8. Test result of circular test piece 31
Table 3.9. Test result of flat test piece 31
Table 3.10. Results of ±45° winding specimen 31
Table 3.11. Salt spray conditions for circular specimen(Hoof) composite 33
Table 3.12. Tensile test result of 0° winding composite after salt spray 33
Table 3.13. 0° Winding composite flexural test results after salt spray 33
Table 3.14. Classification of curing temperature according to use 37
Table 3.15. Bending test results according to the pattern of the MAT test 40
Table 3.16. Tensile test results according to the pattern of the MAT test 41
Table 3.17. Bending test results according to fiber including urethane foam 44
Table 3.18. Tensile test results according to fiber including urethane foam 45
Table 4.1. Telescopic cylinder design 54
Table 5.1. Loading box stacking condition 64
Fig. 2.1. Composition and types of fiber composite materials 17
Fig. 2.2. Filament winding molding process 18
Fig. 2.3. Vacuum bag forming 19
Fig. 2.4. Resin transfer molding process 20
Fig. 2.5. Compression molding 21
Fig. 3.1. Resin tensile strength test result 24
Fig. 3.2. Bending strength test result of resin 24
Fig. 3.3. Jig for producing circular specimens 25
Fig. 3.4. Cylindrical test piece manufacturing process 25
Fig. 3.5. Tensile jig of ASTM D 2290 test standard 26
Fig. 3.6. ASTM D 2290 Tensile Test Method and Failure Results 26
Fig. 3.7. Jig used for producing flat test pieces 27
Fig. 3.8. Test specimen manufacturing process through filament winding 27
Fig. 3.9. Tensile and bending test specimens 28
Fig. 3.10. ASTM D 3039 Standard Test Procedure and Specimen 28
Fig. 3.11. ASTM D 3039 Test Procedure 28
Fig. 3.12. ASTM D 3039, Test Procedure for 90° Specimens 29
Fig. 3.13. Test procedure of ASTM D 790, 0° 30
Fig. 3.14. 0° Shear test process of 0° test piece 30
Fig. 3.15. Salt spray test 32
Fig. 3.16. Tensile test result of test piece after salt water fountain 33
Fig. 3.17. Flexural test result of test piece after salt water fountain 34
Fig. 3.18. Stacking sequence diagram 35
Fig. 3.19. Hand lay up molding 36
Fig. 3.20. Composite material forming by curing temperature and time 37
Fig. 3.21. Curing conditions according to temperature and time 38
Fig. 3.22. Hot press for making test pieces 39
Fig. 3.23. MAT type glass fiber plate and bending test piece 39
Fig. 3.24. MAT Laminate 40
Fig. 3.25. Bend test results for stacking angles of 0°/0°/0°/0° (1) 42
Fig. 3.26. Bend test results for stacking angles of 0°/0°/0°/0° (2) 42
Fig. 3.27. Tensile test results for stacking angles of 0°/0°/0°/0° (1) 43
Fig. 3.28. Tensile test results for stacking angles of 0°/0°/0°/0° (2) 43
Fig. 4.1. Storage box processing diagram for composite material application(Front) 47
Fig. 4.2. Storage box processing diagram far composite material application(Rear) 48
Fig. 4.3. Loading box jig processing drawing for composite material application 48
Fig. 4.4. Filament winding jig and bracket fastening 49
Fig. 4.5. Tailgate Hinge Assembly drawing 50
Fig. 4.6. Tailgate Hinge bed installation frame for 2 locations 50
Fig. 4.7. Loading box filament winding process 51
Fig. 4.8. Load box and structure auxiliary support shape 52
Fig. 4.9. Reinforcing frame shape and fabrication 53
Fig. 4.10. Internal polluted water discharge pipe 53
Fig. 4.11. Hydraulic diagram 54
Fig. 4.12. Hydraulic supply design - top view 55
Fig. 4.13. Hydraulic supply design - side 55
Fig. 4.14. Manufacture of hydraulic supply device for operation durability test 56
Fig. 4.15. Idler roller MC pad plan drawing 57
Fig. 4.16. Exhaust plate rubber processing diagram 57
Fig. 4.17. Exhaust plate manufacturing process drawing 58
Fig. 4.18. Production photo of the discharge plate 58
Fig. 4.19. Application of ejection plate roller and rubber 59
Fig. 4.20. Tailgate side panel production drawing 60
Fig. 4.21. Tailgate side panel production photo 60
Fig. 4.22. Weight reduction of specially equipped body (before/after) 61
Fig. 5.1. 3D Surface modeling and mesh, node 63
Fig. 5.2. Loading and boundary conditions of loading box 64
Fig. 5.3. Equivalent stress of the cargo box 65
Fig. 5.4. Deformation amount of loading box 65
Fig. 5.5. Mesh and node applied to loading box including internal support 66
Fig. 5.6. Analysis of load box application including internal support 66
Fig. 5.7. Equivalent stress of loading box including internal supports 67
Fig. 5.8. Deformation amount of loading box including internal support 67