Silabus MK Material Komposit (Composite Material Syllabus)

Topik:
1. Pengantar Umum
a. macam-macam komposit,
b. disain material komposit,
c. konsep transfer beban pada material komposit
2. Fiber & Matrices
a. Reinforcements (Bahan Pengisi/penguat): Carbon Fibres, Glass Fibres, Organic Fibres, Silicon Carbide, Alumina and Aluminosilicates
a. Kekuatan dari Reinforcement: Stabilitas Thermal, Compressive Strength, Fibre Fracture and flexibility, a statistical treatment of fibre strength
b. Matrices: Polimer Matrices, Metal Matrices, Ceramic matrices
3. Arsitektur Fibre
a. General Considerations: Volume Fraction & weight fraction, fibre packing arrangements, clustering of fibres and particles.
b. Long Fibres: laminates, Woven, Braided, Knitted fibre arrays, characterisation of fibre orientation in a plane.
c. Short Fibres: distribusi orientasi fibre dalam tiga dimensi, distribusi panjang fibre.
d. Voids
e. Orientasi fiber selama prosessing.
4. Deformasi elastis pada Long-Fibre-Composite
a. Axial stiffness
b. Transverse stiffness
c. Shear stiffness
d. Poisson contraction effect.
5. Deformasi elastis pada Komposit Laminat
a. Deformasi elastis pada material anisotropik: Hooke’s law, Effect of Symmetry
b. Off-axis elastic constant pada laminated: calculation procedure, engineering constants.
c. Deformasi elastis pada laminat: loading of stack od plies, predicted behaviour
d. Tegangan & Distorsi: balanced laminates, stresses in individual plies of a laminate.
6. Tegangan & Regangan (Stresses dan strains) in short-fibre composite
a. The shear lag model: stress and strain distribution, The stress transfer length, Transfer of normal stress across fibre ands, prediction of stiffness, onset of inelastic behaviour.
b. The Eshelby method: a missfitting ellipsoid, the equivalent homogeneous ellipsoid, the background stress, composite stiffnes.
7. Daerah antarmuka (the interface region)
a. Mekanisme ikatan: adsobsi & pembasahan (wetting), interdifusi & reaksi kimia, interaksi elektrostatik, mechanical keying, residual stresses.
b. Experimental measurement of bond strength: single-fibre pull-out test, single-fibre push-out & push down tests, other tests.
c. Kontrol pada Kekuatan ikatan (bond strength): coupling agent and enviromental effect, toughness-reducing coating, interfacial chemical reaction and diffusion barrier coating, the interphase regions.
8. Kekuatan Komposit
a. Model Patahan pada komposit long-fibre: Axial tensile failure, tranverse tensile failure, shear failure, failure in compression.
b. Kerusakan pada laminat di bawah off-axis loads: maximum stress criterion, other failure criteria, experimental data for single laminat.
c. Kekuatan Laminat: tensile cracking, interlaminar stresses, edge effect.
d. Failure of tubes under internal pressure: pure hoop loading, combined hoop and axial loading, netting analysis.
9. Ketangguhan pada komposit (toughness of composite)
a. Mekanika perpatahan: konsep dasar, interfacial fracture and crack and crack deflection.
b. Contributions to work of fracture: matrice deformation, fibre fracture, interfacial debonding, frictional sliding and fibre pull-out, effect of microstructure.
c. Sub-critical crack growth: fatigue, stress corrosion cracking.
10. Sifat Termal pada Komposite
a. Ekspansi termal dan thermal stresses: thermal stresses and strains, thermal expansivities, thermal cycling of unidirectional composite, thermal cycling of laminates.
b. Creep: basic of matrice and fibre behaviour, axial creep of long-fibre composite, transverse creep and discontinuously reinforced.
c. Thermal Conduktion: heat transfer mechanisms, conductivity of composites, interfacial thermal resistance.
11. Fabrikasi
a. Komposit bermatrik polimer (PMC): liquid resin impregnation routes, pressurised consolidation of resin pre-pregs, consolidation of resin moulding compounds, injection moulding of thermoplastics, hor press moulding of thermoplastics.
b. Komposit bermatrik Logam (MMC): squeeze infiltration, stir casting, spray deposition, powder blending and consolidation, diffusion bonding of foils, physical vapour deposition (PVD)
c. Komposit bermatrik Keramik (CMC): powder-based routes, reactive processing, layered ceramic composite, carbon/carbon composite.
12. Aplikasi material komposit
a. Minesweeper hull
b. Sheet processing rolls
c. Helicopter rotor blade
d. Golf driving club
e. Racing bicycle
f. Diesel engine piston
g. Microelectronics housing
h. Gas turbine combutor can
i. Aircraft brakes.
Untuk lebih lengkapnya, silahkan klik SILABUS MATAKULIAH KOMPOSIT (A)

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