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Leichtbau im Automobil (LiA) Bildinformationen anzeigen
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Leichtbau im Automobil (LiA) Bildinformationen anzeigen

Leichtbau im Automobil (LiA)

Leichtbau im Automobil (LiA)

Leichtbau im Automobil (LiA)

Leichtbau im Automobil (LiA)

Mitarbeiter des LiA

Steffen Tinkloh

Kontakt
Publikationen
 Steffen  Tinkloh

Leichtbau im Automobil

Wissenschaftlicher Mitarbeiter - Teamleiter Simulation

Telefon:
+49 5251 60-5952
Fax:
+49 5251 60-5333
Büro:
Y2.228
Weitere Arbeitsbereiche

Liste im Research Information System öffnen

2021

On the reliability of residual stress measurements in unidirectional carbon fibre reinforced epoxy composites

A. Magnier, T. Wu, S.R. Tinkloh, T. Tröster, B. Scholtes, T. Niendorf, Polymer Testing (2021)

DOI


Development of a submodel technique for FFT-based solvers in micromechanical analysis

S.R. Tinkloh, T. Wu, T. Tröster, T. Niendorf. Development of a submodel technique for FFT-based solvers in micromechanical analysis. 2021.


Measurement and Analysis of Residual Stresses and Warpage in Fiber Reinforced Plastic and Hybrid Components

T. Wu, S.R. Tinkloh, T. Tröster, W. Zinn, T. Niendorf, Metals (2021)

<jats:p>Glass/carbon fiber reinforced plastic (GFRP/CFRP) and hybrid components have attracted increasing attention in lightweight applications. However, residual stresses induced in the manufacturing process of these components can result in warpage and, eventually, negatively affect the mechanical performance of the composite structures. In the present work, GFRP, CFRP, GFRP/steel and CFRP/steel hybrid components were manufactured through the prepreg-press-technology always employing the same process parameters. The residual stresses of these components were measured through the hole drilling method (HDM), based on an adequate formalism to evaluate the residual stresses for orthotropic materials including the calculation of the calibration coefficients via finite element analysis (FEA). In FEA, the real material lay-up and mechanical properties of the samples were considered. The warpage induced by residual stresses was measured after the samples were removed from the tool. The measured residual stresses and warpage of four different types of samples were compared and results were analyzed in depth. The results obtained can be extended to other hybrid materials and even could be used for designing multi-stable laminates for application in adaptive structures. Moreover, the effects of the drilling process parameters of HDM, e.g., the drilling speed, the drilling increment and the zero-depth setting, on the resulting residual stresses of GFRP were investigated. The reliability of residual stress measurements in GFRP using HDM was validated through mechanical bending tests. The conclusions concerning the choice of optimal drilling parameters for GFRP could be directly applied for other types of samples considered in the present work.</jats:p>


The Effect of Fiber Waviness on the Residual Stress State and Its Prediction by the Hole Drilling Method in Fiber Metal Laminates: A Global-Local Finite Element Analysis

S.R. Tinkloh, T. Wu, T. Tröster, T. Niendorf, Metals (2021)

DOI


2020

Numerical investigation of the hole-drilling method applied to intrinsic manufactured metal-CFRP hybrids

S.R. Tinkloh, T. Wu, T. Tröster, T. Niendorf, in: Proceedings of the 4th International Conference Hybrid 2020 Materials and Structures, 2020


Determination and Validation of Residual Stresses in CFRP/Metal Hybrid Components Using the Incremental Hole Drilling Method

T. Wu, S.R. Tinkloh, T. Tröster, W. Zinn, T. Niendorf, Journal of Composites Science (2020)

DOI


A micromechanical-based finite element simulation of process-induced residual stresses in metal-CFRP-hybrid structures

S.R. Tinkloh, T. Wu, T. Tröster, T. Niendorf, Composite Structures (2020), 238

DOI


Residual stress measurement in GFRP/steel hybrid components

T. Wu, S.R. Tinkloh, T. Tröster, W. Zinn, in: Proceedings of the 4th International Conference Hybrid 2020 Materials and Structures, 2020


2019


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