Cohesive zone failure modeling of polymeric adhesives used in ceramic/metal armor

Pisavadia, Harshil; Toussaint, Geneviève; Dolez, Patricia I.; Hogan, James D.

doi:10.1016/j.ijimpeng.2022.104364

Cited by 11 publications

(6 citation statements)

References 40 publications

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“…The numerical model reproduced similar geometries to those used in the mechanical tests already performed, allowing for a direct comparison of the experimental and numerical results. In previous works, trilinear CZM shape laws have been used in polyurethane adhesives [21,30,38,40,41]; however, since the experimental results of this work showed no yielding point in both tensile and shear tests, a simpler triangular shape cohesive law was found to be more effective. Thus, the aim is the numerical simulation of the behaviour of a new SPUR formulation.…”

Section: Introductionmentioning

confidence: 74%

“…On the other hand, for ductile adhesives, the trapezoidal law is generally more accurate than the triangular and exponential shapes. Pisavadia et al [41] studied a trapezoidal (trilinear) CZM shape and found that it was more suitable for the numerical validation of a polyurethane adhesive. The property identification methodology was previously performed in order to determine the mechanical adhesive properties and then establish an association between the real and cohesive values.…”

Section: Introductionmentioning

confidence: 99%

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The Development and Study of a New Silylated Polyurethane-Based Flexible Adhesive—Part 2: Joint Testing and Numerical Modelling

Rodrigues,

Marques,

Carbas

et al. 2023

Materials

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The need for more sustainable adhesive formulations has presented the possibility of using silane-based adhesives in the automotive industry. In this work, a dual-cure two-component silylated polyurethane resin (SPUR) adhesive was tested in single-lap joints, to assess in-joint behaviour at room temperature under quasi-static conditions for aluminium substrates. The effect of two different overlap lengths, 25 and 50 mm, was also considered. A numerical model was built using cohesive zone modelling in finite element software, to reproduce the mechanical behaviour of the joint. The model was fed with data experimentally withdrawn from the first part of this paper. A triangular-shaped cohesive zone model (CZM) law was chosen as the adhesive behaviour was highly elastic and lacked yielding phenomena. The experimental results served as the base for the numerical validation, allowing accurate CZM parameters to be successfully determined.

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Section: Introductionmentioning

confidence: 74%

Section: Introductionmentioning

confidence: 99%

The Development and Study of a New Silylated Polyurethane-Based Flexible Adhesive—Part 2: Joint Testing and Numerical Modelling

Rodrigues,

Marques,

Carbas

et al. 2023

Materials

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“…The operational standard of armor and bulletproof has a density of 3.75 g/cm3 for the Alotec 96 SB, 3.80 g/cm3 for the Alotec 98 SB, 3.87 g/cm3 for the Alotec 99 SB, and 3.1 g/cm3 for the Cisadur FC models [26]. The density above shows that the composite made is still lower in density, hence, it is lighter.…”

Section: Density Test Resultsmentioning

confidence: 96%

Investigation on Composites Reinforced with Multi-Layer Carbon Fiber and Silicone Rubber Against Impact test and Shoot Strength.

Sakuri,

Sugiarto,

Sugiantoro

et al. 2023

Technium

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The aim of this study is to examine the durability of composite materials reinforced with carbon fiber and the effects of silicone rubber on the composites' tensile strength, bending, firing, impact, and density. The silicon fiber was mixed with resin using a magnetic stirrer at 250 rpm, with a temperature of 40o C for 30 minutes. Furthermore, the composite production process was carried out using a vacuum infusion method with carbon fiber sheet variations of 6, 8, and 10. Tensile strength shows a proportional increase with the number of carbon fiber layers. Flexural strength indicates the opposite. The impact test was conducted in accordance with the ASTM E 23 standard, the firing test was performed using a 9x19 mm caliber bullet with a distance of 10 m, and the density was found by employing ASTM 792-13. The greatest density was 1,274 grams/cm3, and it was gotten from the sample with 10 fiber layers. Following this, the results of the impact test (Izod) showed that the specimen with 6 layers of carbon fiber had the highest impact strength of 0.040 Joule/mm. While the shoot test results indicated that the composite with 6 layers of carbon had smaller shot holes. There was no significant absorption in the water absorption test.

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“…This requires extensive experimental characterization of traction-separation parameters as a function of spatial co-ordinates. Furthermore, the inelastic and rate-dependent behavior of the adhesive during separation at failure can be captured using a trilinear (or trapezoidal) traction-separation law (Pisavadia et al, 2022) and is left to a subsequent study.…”

Section: J O U R N a L P R E -P R O O Fmentioning

confidence: 99%

Pullout characteristics of functionally graded and degraded adhesive anchors

Kumar

Khan

Wardle

et al. 2023

European Journal of Mechanics - A/Solids

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Cohesive zone failure modeling of polymeric adhesives used in ceramic/metal armor

Cited by 11 publications

References 40 publications

The Development and Study of a New Silylated Polyurethane-Based Flexible Adhesive—Part 2: Joint Testing and Numerical Modelling

The Development and Study of a New Silylated Polyurethane-Based Flexible Adhesive—Part 2: Joint Testing and Numerical Modelling

Investigation on Composites Reinforced with Multi-Layer Carbon Fiber and Silicone Rubber Against Impact test and Shoot Strength.

Pullout characteristics of functionally graded and degraded adhesive anchors

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