Search Results - "IHLEMANN, J"

Analysis of some basic approaches to finite strain elasto-plasticity in view of reference change by Shutov, A.V., Ihlemann, J.

“…•The notion of weak invariance of constitutive equations is introduced.•Theoretical and practical implications of this notion are discussed.•The weak…”
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Hybrid micro-optical elements by laser-based fabrication of Fresnel lenses on the end face of gradient index lenses by Fricke-Begemann, T, Ihlemann, J

“…Fresnel lenses are fabricated directly upon the end face of gradient index (GRIN) lenses by F -laser machining at 157 nm wavelength. The employed laser…”
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An explicit solution for implicit time stepping in multiplicative finite strain viscoelasticity by Shutov, A.V., Landgraf, R., Ihlemann, J.

“…•The popular model of the finite strain Maxwell fluid is considered.•A new explicit update formula for implicit time stepping is presented.•The algorithm is…”
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Molecular dynamics modeling of periodic nanostructuring of metals with a short UV laser pulse under spatial confinement by a water layer by Ivanov, D. S., Blumenstein, A., Ihlemann, J., Simon, P., Garcia, M. E., Rethfeld, B.

“…The possibility of material surfaces restructuring on the nanoscale due to ultrashort laser pulses has recently found a number of practical applications. It…”
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On an alternative modelling of distributed fibre directions by Goldberg, N., Ihlemann, J.

“…The main contribution of this work is the introduction of an alternative approach for the fast and accurate modelling of distributed fibre directions. This…”
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Coupled experimental and simulative investigation of the influence of polymer moisture content on the strength of amino-silane-mediated aluminum polyamide 6 joints by Kießling, R., Dittes, A., Lampke, T., Ihlemann, J.

“…Amino-silane coupling agents are used to improve adhesion to polyamide-based composites. This paper aims to study the influence of polyamide 6 moisture content…”
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Plastic flow during equal-channel angular pressing with arbitrary tool angles by Wagner, M.F.-X., Nostitz, N., Frint, S., Frint, P., Ihlemann, J.

“…Equal-channel angular pressing (ECAP) allows to rapidly accumulate massive amounts of plastic strain and thus to promote grain refinement in metals, which is…”
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Geometrically linear continuum theory of dislocations revisited from a thermodynamical perspective by Silbermann, C. B., Ihlemann, J.

“…Continuum dislocation theory (CDT) allows the consideration of dislocation ensembles by introducing the dislocation density tensor. Though the kinematics of…”
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Ductile damage model for metal forming simulations including refined description of void nucleation by Shutov, A.V., Silbermann, C.B., Ihlemann, J.

“…We address the prediction of ductile damage and material anisotropy accumulated during plastic deformation of metals. A new model of phenomenological metal…”
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Patterned deposition of thin SiOX-films by laser induced forward transfer by Ihlemann, J., Weichenhain-Schriever, R.

“…Well defined regions of silicon suboxide (SiOx) thin films deposited on fused silica substrates by vacuum evaporation are transferred to a receiver substrate…”
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Fabrication of 250-nm-hole arrays in glass and fused silica by UV laser ablation by Karstens, R., Gödecke, A., Prießner, A., Ihlemann, J.

“…Parallel nanohole drilling in glass using an ArF excimer laser (193nm) is demonstrated. For the first time, hole arrays with 500nm pitch and individual holes…”
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Modeling the evolution of dislocation populations under non-proportional loading by Silbermann, C.B., Shutov, A.V., Ihlemann, J.

“…•The 2-phase composite approach of Estrin et al. is critically analyzed and refined.•The refined model ensures non-negative dislocation densities and…”
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Generalization of a uniaxial elasto‐plastic material model based on the Prandtl‐Reuss theory by Gelke, S., Ihlemann, J.

“…The present paper introduces a material model following the Prandtl‐Reuss theory of time‐independent elasto‐plasticity. Applying a hypo‐elastic relation a…”
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A viscoplasticity model with an enhanced control of the yield surface distortion by Shutov, A.V., Ihlemann, J.

“…► A new model of viscoplasticity with directional distortional hardening is proposed. ► The model is based on a simple two-dimensional rheological…”
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Complex diffractive surface patterns on metals by UV-ps laser ablation by Klein-Wiele, J.-H., Fricke-Begemann, T., Simon, P., Ihlemann, J.

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Finite element implementation of a microstructure-based model for filled elastomers by Freund, M., Lorenz, H., Juhre, D., Ihlemann, J., Klüppel, M.

“…To describe the inelastic mechanical behavior of filled elastomers a microstructure-based material model for uniaxial loadings has been developed. The…”
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Dissipation power homogenization of anisotropic linear viscoelastic composites by Mika, M., Horst, T., Landgraf , R., Ihlemann, J.

“…The current work presents a thermodynamic consistent derivation of the volume‐specific dissipation power and energy function based on an anisotropic…”
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Deterministic sub-micron 2D grating structures on steel by UV-fs-laser interference patterning by Bekesi, J., Simon, P., Ihlemann, J.

“…Large area linear and crossed grating structures on steel surfaces are obtained by UV-femtosecond-laser ablation at 248 nm. High resolution on large areas is…”
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Simulation of distortional hardening by generalizing a uniaxial model of finite strain viscoplasticity by Freund, M., Shutov, A.V., Ihlemann, J.

“…► We generalize a uniaxial viscoplastic model to a three-dimensional constitutive model. ► The uniaxial model takes the isotropic and kinematic hardening into…”
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Sub-500-nm patterning of glass by nanosecond KrF excimer laser ablation by Bekesi, J., Meinertz, J., Simon, P., Ihlemann, J.

“…The surface of flint glass of type F2 is patterned by nanosecond KrF excimer laser ablation. Strong UV absorption provides a comparatively low ablation…”
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