Download Challenges in Mechanics of Time-Dependent Materials, Volume by H. Jerry Qi, Bonnie Antoun, Richard Hall, Hongbing Lu, Alex PDF

By H. Jerry Qi, Bonnie Antoun, Richard Hall, Hongbing Lu, Alex Arzoumanidis, Meredith Silberstein, Jevan Furmanski, Alireza Amirkhizi, Joamin Gonzalez-Gutierrez

Challenges in Mechanics of Time-Dependent Materials, quantity 2: lawsuits of the 2014 Annual convention on Experimental and utilized Mechanics, the second one quantity of 8 from the convention, brings jointly contributions to this significant zone of study and engineering. the gathering offers early findings and case experiences on basic and utilized points of Experimental Mechanics, together with papers within the following common technical learn components:

metal, Polymeric and Composite Materials

o results of maximum Environments together with Radiation Resistance, harm, and Aging

o demanding situations in Time-dependent habit Modeling of Low, average and excessive pressure Rates

o results of Inhomogeneities at the Time-Dependent Behavior

o Time established granular materials

· Composite, Hybrid and Multifunctional fabrics

o demanding situations in Time-dependent habit Modeling Viscoelastoplasticity and Damage

o results of Interfaces and Interphases at the Time-Dependent Behavior

· Mechanics of fabrics from complicated production, resembling additive manufacturing

o estate characterization from AM

o procedure modeling and simulations of AM

o fabric layout utilizing AM

· Time-dependent and Small-scale results in Micro/Nano-scale Testing

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Extra info for Challenges in Mechanics of Time-Dependent Materials, Volume 2: Proceedings of the 2014 Annual Conference on Experimental and Applied Mechanics

Example text

BlatzÀKo ¼    !    ! Gel f 1 À 2ν À2ν Gel ðf À 1Þ I 2 1 À 2ν 2ν I1 À 3 þ J J À 3 þ À1 þ À 1 2 ν 1 À 2ν 2 ν 1 À 2ν J2 ! 1 ∂ F 2 ψ ¼ FT σ BlatzÀKo ij J ∂C BlatzÀKo ð3:3Þ ð3:4Þ The viscoelastic stress modeled by Li and Lau [Eq. 5)] was selected as it has shown to produce reasonable results for polymers under high-rate loadings [1, 3]: σ visco 8t 9 " # ð < = 6 X 1 ÀðtÀτÞ=T _ ðτÞdτ FT i E ¼ F ½ A1 þ A 2 ð I 2 À 3Þ Š Gi e ; J : i¼1 ð3:5Þ 0 The convolution integral was solved either through direct numerical integration or a state variables approach [2, 10, 11].

5] numerical results. 38 R. Hall et al. Fig. 4 Fluid and solid kinematic and force quantities along the domain at the end of 100 h. (a) Solid density along the domain, (b) fluid density along the domain, (c) fluid stress along the domain, (d) interactive force along the domain Tandon et al. [5] studied the oxidation layer growth via diffusion reaction equation assuming an ideal fluid permeating through a rigid solid. Accordingly, in their model the deformation of the solid and viscous effects in the fluid are neglected.

In this section, we present numerical results for the oxidation behavior of polyimide PMR15 resin based on the oxidation reaction model developed in the works of Tandon et al. [5]. For the sake of completeness, we provide a brief description of the oxidation process in polymer. However, for a detailed description of the oxidation process and the reaction kinetics model, refer to [5, 12]. Oxidation front in polymer materials advances through a combination of diffusion and reaction mechanism. The exposed surface reacts with the diffusing air, depleting the amount of polymer 4 Diffusion of Chemically Reacting Fluids through Nonlinear Elastic Solids and 1D Stabilized Solutions 37 Fig.

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