1. Analytical assessment of woven fabrics under vertical stabbing – The role of protective clothing 
Sayyed Mahdi Hejazi, Nastaran Kadivar, Ali Sajjadi 
Forensic Science International 
Volume 259, Pages (February 2016)
DOI: /j.forsciint
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2. Fig. 1 A schematic of vertical stabbing into the fabric.
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3. Fig. 2 A deformed yarn within the fabric after vertical stabbing.
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4. Fig. 3
Force equilibrium in fabric-stab system before blade penetration.
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5. Fig. 4 Penetration of blade through the fabric.
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6. Fig. 5 Schematic view of cylinder appliance.
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7. Fig. 6 Knife and test appliance used in this study.
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8. Fig. 7
The relationship between Fstabmax and fabric tensile strain ɛ at different values of elastic modulus of fabric E when N=5, Astab=0.25mm2, Twarp=20/cm and yarn count (Denier)=300.
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9. Fig. 8
The relationship between Fstabmax and warp yarn count (Denier) at different values of blade tip surface area Astab when N=5, ɛ=0.2, Twarp=20/cm and E=75GPa.
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10. Fig. 9
The relationship between tensile strength and shear strength of square fabric in the warp-weft plane.
*the coefficient of “a” indicates the tensile strength of fabric at θ direction (σθ) based on warp and weft tensile strengths (σw): σθ=a×σw.
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11. Fig. 10
The effect of initial blade velocity (Vs) and blade thickness (t) on residual velocity of blade (Vr): fabric shear strength=1MPa, fabric thickness=5mm, blade mass=100g.
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12. Fig. 11
The effect of fabric shear strength (τ) and fabric thickness (T) on residual velocity of stab (Vr): initial stab velocity=4m/s, blade thickness=1mm, blade mass=100g.
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13. Fig. 12
Three steps of knife-fabric system under vertical stab loading.
Forensic Science International  , DOI: ( /j.forsciint )
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