A strain-rate dependent micromechanical constitutive model for glass/epoxy composites

Shokrieh, M.M.; Mosalmani, Reza; Omidi, Majid Jamal

doi:10.1016/j.compstruct.2014.10.035

Cited by 23 publications

(14 citation statements)

References 41 publications

(69 reference statements)

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“…45 Glass differs from the physiological environment due to its inelasticity. 46,47 Platelet-based outputs from such devices must be carefully considered in terms of physiology, as platelets may be more reactive to a harder glass substrate, and its inherent inelasticity fails to mimic physiological flow produced through arteriolar expansion and contraction. 48,49 Cyclic Olefin Polymers/Copolymers Cyclic olefin polymers (COP) and copolymers are increasingly popular as a substrate material for microfluidics.…”

Section: Glassmentioning

confidence: 99%

A Review of Design Considerations for Hemocompatibility within Microfluidic Systems

Szydzik

Brazilek

Nesbitt

2020

Semin Thromb Hemost

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The manipulation of blood within in vitro environments presents a persistent challenge, due to the highly reactive nature of blood, and its multifaceted response to material contact, changes in environmental conditions, and stimulation during handling. Microfluidic Lab-on-Chip systems offer the promise of robust point-of-care diagnostic tools and sophisticated research platforms. The capacity for precise control of environmental and experimental conditions afforded by microfluidic technologies presents unique opportunities that are particularly relevant to research and clinical applications requiring the controlled manipulation of blood. A critical bottleneck impeding the translation of existing Lab-on-Chip technology from laboratory bench to the clinic is the ability to reliably handle relatively small blood samples without negatively impacting blood composition or function. This review explores design considerations critical to the development of microfluidic systems intended for use with whole blood from an engineering perspective. Material hemocompatibility is briefly explored, encompassing common microfluidic device materials, as well as surface modification strategies intended to improve hemocompatibility. Operational hemocompatibility, including shear-induced effects, temperature dependence, and gas interactions are explored, microfluidic sample preparation methodologies are introduced, as well as current techniques for on-chip manipulation of the whole blood. Finally, methods of assessing hemocompatibility are briefly introduced, with an emphasis on primary hemostasis and platelet function.

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Section: Glassmentioning

confidence: 99%

A Review of Design Considerations for Hemocompatibility within Microfluidic Systems

Szydzik

Brazilek

Nesbitt

2020

Semin Thromb Hemost

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“…The relation between fiber stress

σ^{f}

and matrix stress

σ^{m}

in a fiber‐reinforced composite is usually established by a bridging model . As is shown in Fig.…”

Section: Theoretical Backgroundsmentioning

confidence: 99%

“…A precise analytical constitutive model for 3D braided composites is established in this study through an improved meso‐mechanical method. A bridging model and the homogenization theory are used; yarns and the out‐of‐yarn matrix are modeled by a 3D Linde failure criterion and an extend Drucker–Prager criterion , respectively. Thus, the constitutive model is developed and expressed as an analytical equation set.…”

Section: Introductionmentioning

confidence: 99%

An analytical constitutive model for progressive damage analysis of three‐dimensional braided composites

Tian

Yan

et al. 2017

Polymer Composites

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This study investigates the progressive damage behavior of three‐dimensional (3D) braided composites using a new analytical constitutive model. The composite microstructure is represented by yarns and an out‐of‐yarn matrix. The progressive damage behavior of yarns is modeled by a 3D Linde failure criterion, and that of the out‐of‐yarn matrix is modeled by an extended Drucker–Prager criterion. A bridging model is used to establish stress and strain relations between fiber and polymer matrix. Thus, the constitutive model of 3D braided composites is developed in the form of a system of analytical equations, and a numerical solution for the equation set is provided in this study. The elastic modulus, the strength constants, and the stress–strain behavior of 3D braided composites under tension and shear are computed by the model, and the results are consistent with the finite element results and the experimental data. The nonlinear damage behavior of 3D braided composites under unidirectional tension, compression, and shear is analyzed. The composite materials show repeated stiffness degradations during damage evolution because of successive failures of different compositions. Damage behavior depends significantly on the stress states and braiding structures of the composites. Braiding angle and fiber volume fraction mainly influence the mechanical properties of the composites, but barely affect the failure modes and tendencies of stress–strain curves. POLYM. COMPOS., 39:4188–4204, 2018. © 2017 Society of Plastics Engineers

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“…The laminates were investigated to isolate the matrixdominated laminate behavior, and the predictions were found to be in good agreement when compared to the classical failure theories. Shokrieh et al (2014Shokrieh et al ( , 2015 developed a modified strain rate-dependent micromechanical method to predict the strength of unidirectional polymeric composites under various loading rates. They combined Goldberg et al (2005) model strain rate-dependent constitutive equation with a micromechanics model to predict the strength of unidirectional composites at arbitrary strain rates.…”

Section: Introductionmentioning

confidence: 99%

Damage Induced by High-Velocity Impact on Composite Structures Using Finite Element Simulation

Duodu

Shang

et al. 2016

Iran J Sci Technol Trans Mech Eng

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In the current study, a finite element model was established to simulate the penetration process of composite laminates under high-velocity impact. A 3D ratedependent damage constitutive model was developed to simulate the ballistic response of unidirectional fiber-reinforced composite laminate. Numerical models were built based on a damage model where cohesive contact method was involved. The user-developed FORTRAN subroutine (VUMAT) was written and implemented in ABAQUS/ Explicit 6.11 version. The ballistic resistance and damage characteristics of composite laminate were discussed, and the damage model was validated. The results of the FEM were observed to agree well with experimental observation. According to the results, the ply angle of the laminate had great influence on the damage distribution; thus, when the ply angle increases, the ballistic resistance and damage areas on both front and rear side of the laminate decrease. Again, the result shows that increasing the thickness of the laminate was advantageous to the ballistic resistance and damage characteristics of the composite laminates. The prediction of the model was proved to have good accuracy and efficiency.

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A strain-rate dependent micromechanical constitutive model for glass/epoxy composites

Cited by 23 publications

References 41 publications

A Review of Design Considerations for Hemocompatibility within Microfluidic Systems

A Review of Design Considerations for Hemocompatibility within Microfluidic Systems

An analytical constitutive model for progressive damage analysis of three‐dimensional braided composites

Damage Induced by High-Velocity Impact on Composite Structures Using Finite Element Simulation

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