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VDI Wissensforum GmbH - Gießtechnik im Motorenbau 2021

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VDI Wissensforum GmbH (ed.)

Gießtechnik im Motorenbau 2021

Series: VDI-Berichte

Volume 2386 2021

doi.org/10.51202/9783181023860

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Konstruktion

Browse Volumes: Konstruktion

Konstruktion Volume 72 (2020) Issue 03 ISSN Online: 0720-5953

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Patryk Nossol, Arham Saleem Experimentelle Untersuchung zu faser- verbundgerechten Crash-Wirkmechanismen bei axialer Druckbelastung/Experimental Studies on Fiber Com- posit-appropriate Crash Mechanisms under Axial Pressure Load S. 75-84

„… ) served as the reference mechanism. The experiment was carried out by means of high-speed compression …” „… erfolgte der Einsatz einer Hochgeschwindigkeitskamera (Modell FastCam SA-1) von der Fa. Photron. Dadurch …” „… war die Verwendung einer Speziallampe (Modell dl200dhr-nb) der Fa. Dedolight erforderlich, um die …”

doi.org/10.37544/0720-5953-2020-03

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UmweltMagazin

Browse Volumes: UmweltMagazin

UmweltMagazin Volume 52 (2022) Issue 5-6 ISSN Online: 0173-363X

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Die neue Tugend: Kunststoff im Kreislauf S. 3

„… für den „BREF-Prozess“ (Best Available Techniques Reference Document) in Sevilla bis hin zur …” „… Entwicklung war viel schneller, als selbst opti-mistische Modelle vorhergesagt hatten“, erklärt Mitautor Jan …”

doi.org/10.37544/0173-363X-2022-5-6

VDI - Vergleichende Charakterisierung von Schneidkanten

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VDI (ed.)

Vergleichende Charakterisierung von Schneidkanten

Series: Blaue Papiere

Volume 12/2023 2023

doi.org/10.51202/9783949971464

H. W. Reinhardt, G. J. Parra-Montesinos, H. Garrecht - HPFRCC-7.

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H. W. Reinhardt (ed.), G. J. Parra-Montesinos (ed.), H. Garrecht (ed.)

HPFRCC-7.

2015

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G.G. Jen, W.L. Nguyen, C.P. Ostertag Influence of HPFRCC on corrosion initiation and corrosion propagation S. 497-504

„… conventional reinforced concrete, has been simplified to a two-stage model based largely on factors of …” „… been constructed as a bilinear model comprised of an initiation phase and a propagation phase [1]. The …” „… within the concrete until reaching a defined threshold. While the bilinear model of [1] treated the …”

R. Yu, P. Spiesz, H.J.H. Brouwers Effect of mineral admixtures on the properties of a sustainable ultra-high performance concrete (UHPC) S. 45-52

„… densely compacted cementitious matrix, employing the modified Andreasen & Andersen particle packing model …” „… , particularly the modified Andreasen & Andersen particle packing model [22-24]. Based on the previous …” „… experiences and investigations of the authors [25], by applying this model, it is possible to produce a dense …”

M.C. Rampini, G. Zani, M. Colombo, M. di Prisco HPFRCC beams in innovative elevated slabs: experimental characterization and modeling S. 489-496

„… Model Code 2010, paying attention on both the transient and the service conditions. Following the …” „… analytical models based on plane-section hypotheses, proving the predictive capability of the available …” „… : Average HPFRCC reference tensile strengths Stress [MPa] Crack opening w [mm] fFts (SLS) 6.96 0.5 fFtu …”

E. Denarié, E. Brühwiler Cast-on site UHPFRC for improvement of existing structures – achievements over the last 10 years in practice and research S. 473-480

„… b, excellent workability is obtained, comparable to reference UHPFRC mixes developed in France and …” „… UHPFRC samples after 10 years of exposure and the predictions of models based on Fick's law with …” „… profiles in the repair mortar after 7 years exposure on the upstream curb with the predictions of a model …”

A. Blanco, S.H.P. Cavalaro, E. Galeote, A. Aguado Assessment of constitutive model for ultra-high performance fiber reinforced cement composites using the Barcelona test S. 129-136

„… model Model part Material properties Value Reference Interface material Normal stiffness [MN/m3 …” „… ), Stuttgart, Germany – June 1-3, 2015 129 ASSESSMENT OF CONSTITUTIVE MODEL FOR ULTRA-HIGH PERFORMANCE FIBER …” „… constitutive model analytically derived from the Barcelona test was developed and validated for conventional …”

P.B. Sakthivel, A. Ravichandran, N. Alagumurthi Experimental studies to determine the flexural and cracking performance of hybrid steel-mesh and polyolefin-fiber reinforced cementitious composites S. 343-350

„… deflection ductility. Statistical models are developed to predict the flexural strength of HSMPOFRCC. 1 …” „… applied. Demoulding of the specimens was done (after 24 hours) and cured for 28 days. Reference specimens …” „… ) Multiple Cracking Behavior of HSMPFRCC (Type B5B) 3.2 Statistical Prediction Models Statistical …”

F. Lo Monte, P.G. Gambarova, Z. Xu, Y. Li Fiber-reinforced high–performance concretes exposed to high temperature: materials behavior and structural implications S. 275-282

„… per each reference temperature ( = 100 mm, h = 200 mm, Fig. 1a) and one long cylinder ( = 100 mm, h …” „… reference temperature and resting at that temperature for two hours, the first specimen is extracted and …” „… reference to four of the seven mixes investigated in this study, the fibrous mixes are shown to have a …”

J.-P. Charron, F. Lachance, B. Massicotte Bending behavior of precast bridge slabs in UHPFRC under static and cyclic loadings S. 383-390

„… reinforcement in the slabs. A reference slab made with High Performance Concrete (HPC) was also designed to …” „… crack widths in service and fatigue conditions, whereas the reference HPC slab presented crack widths …” „… fatigue limit states were verified. The bridge model selected for this study has an effective span of 3.0 …”

F. Macobatti, C. Zanotti, A. Meda, G. Plizzari Jacketing of existing piers: evaluation of the risk of cracking due to hydration heat when different types of application techniques are used S. 465-472

„… plain-strain two-dimensional model is adopted (Figure 1b). Only a quarter of section is modeled due to double …” „… jacketing the old column (Figure 1). With reference to European standards, the existing concrete can be …” „… . Eight-node quadrilateral isoparametric plane stress elements are used to model normal concrete C25/30 …”

R. Ortlepp, G. Schiller Mineral building material stock of buildings and infrastructures in Germany and flows as indicators for recycling potentials S. 267-274

„… could be exploited by combining them to create a Multi-level Material Flow Model (MMFM). 2.2.1 …” „… was generated by a newly developed model using as base data the gross fixed assets of structures as …” „… expert estimates and values derived from theoretical models, for which reason the results should be …”

J. Li, E.-H. Yang Probabilistic micromechanical model of engineered cementitious composites (ECC) S. 111-118

„… 111 PROBABILISTIC MICROMECHANICAL MODEL OF ENGINEERED CEMENTITIOUS COMPOSITES (ECC) J. Li (1) and …” „… using the First-order reliability method (FORM) based on the built MARS model. 1. INTRODUCTION The …” „… micromechanics-based strain hardening model. The model can be used to optimize mix composition of fiber, matrix and …”

I. Paegle, G. Fischer Modeling the load-deformation response of FRC structural members S. 481-488

„… cementitious composites and is found to realistically model their the load-deformation response. REFERENCES …” „… flexure. Figure 1 illustrates the general modeling approach. The model develops the properties of the RFS …” „… flexure. The model determines the properties of the representative flexural segment through materials …”

R. Ortlepp Rough concrete surfaces for strengthening and retrofitting – 3D Model of roughening process for description of concrete surface geometry S. 145-152

„… be modelled as spheres. This generalization corresponds to other models (e.g. Geisenhanslüke [13 …” „… ) model cube b) influence of 3D modelling on the surface profile Figure 3: 3D cube model of grain …” „… 145 ROUGH CONCRETE SURFACES FOR STRENGTHENING AND RETROFITTING – 3D MODEL OF ROUGHENING PROCESS FOR …”

T. Sajdlová, P. Kabele Finite element analysis of test configurations for identification of interface parameters in layered FRCC systems S. 425-432

„… cohesive interface model is often used, in which the interface is idealized as a zero-thickness line (in 2 …” „… decohesion based on potential formulation. Other models, which are often used in FE codes, employ the …” „… tension and shear (e.g. [4]). Either way, the constitutive model needs to be identified using data from …”

L. Jianzhong, Z. Yaoyong, W. Huifang Penetration and explosion of ultra-high performance fiber reinforced cement composite subjected to impact S. 325-332

„… loading with a concrete material model which takes into account the strain rate effect. The performance …” „… of the numerical models was verified by comparing simulation results to the data from corresponding …” „… 330 The target fracture pattern and crater feature are shown in Figure 6. The reference concrete M2 …”

R. Ortlepp Increased efficiency of column strengthening with TRC by addition of short fibres in the fine-grained concrete matrix S. 29-36

„… PVA fibres. Series SF 1 served as a reference for comparison to the strengthened columns. Series SF 2 …” „… was a second reference mixture to identify the effects of the two short fibre mixtures. In the High …” „… average 144 % of that achieved by the unstrengthened reference series SF 1 (Figure 4). The computational …”

J. Xia, R. Tao, Y. Ma Tensile characterization of sustainable ultra-high performance fibre reinforced concrete containing GGBS S. 103-110

„… unit weight of UHPFRC material. The analyses on two traffic bridge models done by Almansour and Lounis …” „… shown in Figure 4 a. After meshing, the model was imported to MSC.MARC for further analysis. The …” „… material model used in MSC.MARC is low tension model with softening capability [8]. The modulus of …”

S.G. Chasioti, F.J. Vecchio Hybrid steel fiber reinforced concrete panels in shear: experimental investigation S. 351-358

„… the development of appropriate constitutive models for the characterization of the cracked composite …” „… structures using HySFRC dependents to a large extent on the development of appropriate constitutive models …” „… Disturbed Stress Field Model (DSFM) [12], which is a refined version of the Modified Compression Field …”

B.L. Karihaloo, S. Kulasegaram Determination of fibre orientation factor in high and ultra-high-performance fibrereinforced self-compacting concrete S. 137-144

„… and favourably oriented to the direction of principal tensile loading. According to the FIB Model …” „… constitutive behaviour of non-Newtonian viscous fluid was described by a Bingham-type model. The basic …” „… calculate the orientation factor envisaged in the FIB Model Code (2010). Figures 4-5 illustrate how the …”

R. Yu, P. Spiesz, H.J.H. Brouwers Sustainable development of an ultra-high performance fibre reinforced concrete (UHPFRC): towards an efficient utilization of fibres S. 53-60

„… modified Andreasen & Andersen particle packing model. The binary and ternary fibres hybridization is …” „… modified Andreasen & Andersen particle packing model was utilized to produce a dense and homogeneous …” „… packing model [10, 19-21] are listed in Table 1. One example of the resulting integral grading curve of …”

D.A.S. Rambo, F.A. Silva, R.D. Toledo, O.F.M. Gomes On the chemo-mechanical behavior of basalt textile reinforced refractory concrete under high temperatures S. 201-208

„… model (CPM) routine [5, 6] and then adapted to the rheology necessary to produce laminated TRC´s. The …” „… a Shimadzu universal testing machine model AGX – 100 kN and controlled by the actuator displacement …” „… . REFERENCES [1] Krüger M, Reinhardt HW. (2006) Chapter 6: Fire resistance. In: Report 36: Textile Reinforced …”

S. Ortlepp, R. Masou, R. Ortlepp Demountable construction for sustainable buildings S. 441-448

„… , areas such as electrical, mechanical, or automotive industry serve as a model for future design and …” „… tensile force of the tendon decompression check 2.3 Numerical pre-analysis A simple numerical model …” „… project REMOMAB. REFERENCES [1] Ortlepp, R., 'Mineral building material stock of buildings and …”

J. Wastiels, J. Van Ackeren, D. Van Nuffel, W. Van Paepegem Impact behaviour of high performance glass fibre reinforced cement composite laminates S. 317-324

„… with an Isotron sensor type Endevco model 2311-1 with a full range of +22000/-2200 kN, which was …” „… placed on the impactor as close as possible to the impacted plate. An acceleration sensor ICP model 350B …” „… " (IWT-Vlaanderen) (PhD Grant for the second author). REFERENCES [1] Liu, D., Raju, B.B., Dang, X., 'Impact …”

J. Qiu, E.-H. Yang Micromechanics-based study on fatigue failure of engineered cementitious composites S. 309-316

„… to characterize the fatigue-dependent parameters in the existing micromechanics-based model for ECC …” „… ECC needs to be understood fundamentally on the micro-scale. In the micromechanics-based model, there …” „… fatigue-hardening effect. REFERENCES [1] Qian, S., et al., Life cycle analysis of pavement overlays made with …”

M.J. Bandelt, S.L. Billington Impact of reinforcement ratio on deformation capacity of reinforced highperformance fiber-reinforced cementitious composites S. 457-464

„… University. REFERENCES [1] Fischer G, Li V (2002) Effect of matrix ductility on deformation behavior of …” „… effects in high-performance fiberreinforced cement based composites under cyclic loads. Comput. Model …”

A.E. Naaman, H.W. Reinhardt International workshop series on High Performance Fiber Reinforced Cement Composites (HPFRCC): History and Evolution S. 3-10

„… reinforced concrete Figure 4: Parallel evolution and merging of disciplines to model FRC composites …” „… support of the above organizations is gratefully acknowledged. REFERENCES [1] Stroeven, P., Reinhardt …” „… focus areas with significant research needs (such as Bond, Computer Modeling, Toughness, Testing …”

L.F. Maya Duque, A.M. Nuñez López Development of a high-performance fiber-reinforced cement composite for large scale processing S. 87-94

„… using a finite element analysis, Figure 6. The material was modeled using elasto-plastic models for …” „… . REFERENCES [1] Naaman, A.E., “High performance fiber reinforced cement composites: classification and …” „… Composites – Tailored Composites Through micromechanical Modeling”, in “Fiber Reinforced Concrete: Present …”

A. Peled, V. Mechtcherine, D. Nicke, S. Hempel Modifying carbon roving-cement matrix bond by inorganic coating S. 61-68

„… fillers as well as the reference without any filler. In contrary, the nanosilica filler drastically …” „… reduced the bond strength between the carbon yarn and the cement matrix as compared with the reference …” „… reference composite was also prepared (REF) for comparison, when the process was identical to the other …”

A. Assmann, H.W. Reinhardt Concrete with superabsorbent polymer fiber S. 161-168

„… . 3.2 Concrete composition Ten compositions of concrete were made, i.e. two reference mixtures with …” „… been modelled by Setzer with the so-called “micro-ice-lens pump” [6]. The thermodynamic modeling has …” „… reference concretes show a scaling of 4.000 and 3.000 g/m2 resp. As to be expected Ref 0.50 shows most …”

H. Ma, S. Qian, V.C Li Development of engineered cementitious composites with local material ingredients S. 259-266

„… ), Stuttgart, Germany – June 1-3, 2015 266 REFERENCES [1] Li, V.C. “From Micromechanics to Structural …” „… micromechanical modeling.” Fiber Reinforced Concrete: Present and the Future edited by Banthia et al, CSCE …”

S.K. Swar, S.K. Sharma, H.K. Sharma Performance characteristics of HPDSP concrete: an overview S. 79-86

„… & tools for polymer composites and metals. REFERENCES [1] Dhakal, Rajesh P. Peng, Brian H. H. Fenwick …” „… by modelling beam column sub assemblage using appropriate software to determine HPDSPC grade …”

doi.org/10.51202/9783816793977

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