Relevant bibliographies by topics / UHSS

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'UHSS'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'UHSS.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "UHSS"

1

Noorsumar, Gulshan, Dmitry Vysochinskiy, Even Englund, Kjell G. Robbersmyr, and Svitlana Rogovchenko. "Effect of welding and heat treatment on the properties of UHSS used in automotive industry." EPJ Web of Conferences 250 (2021): 05015. http://dx.doi.org/10.1051/epjconf/202125005015.

Full text
Abstract:
This paper deals with the undesired effects of the heat treatments on the mechanical properties of (UHSS) Ultra High Strength Steel used nowadays in automotive industry to improve crashworthiness performance of vehicles. The UHSS specimens were extracted from certain parts of the car body and subjected to different heat treatments. Four types of specimens were tested: untreated, welded with metal inert gas welding, heat treated at 800 °C, and heat treated at 1250 °C. All heat-treated specimens showed dramatically reduced values of strength. The results suggest that it is important to follow the official repair manuals avoiding unnecessary welding and improper heat treatments of UHSS. The experiments provide the data necessary for constructing a constitutive model and performing a finite-element analysis of improperly repaired UHSS parts.
APA, Harvard, Vancouver, ISO, and other styles
2

Kah, Paul, Markku Pirinen, Raimo Suoranta, and Jukka Martikainen. "Welding of Ultra High Strength Steels." Advanced Materials Research 849 (November 2013): 357–65. http://dx.doi.org/10.4028/www.scientific.net/amr.849.357.

Full text
Abstract:
The ongoing need to reduce the weight of products while increasing strength has resulted in new generation steel manufacturing using special heat treatments to produce High Strength Steels (HSS) and Ultra High Strength Steels (UHSS) with up to 1700 MPa tensile strength. The high strength level of these steels makes it possible to produce structures with a considerable weight and cost reduction, and such steels have been adopted in the automotive industry and for mobile heavy equipment. Welding of UHSS is, however, not without its complications and welding processes for these steels need careful attention. For instance, their high susceptibility to cracking and Heat Affected Zone (HAZ) softening are risks that need to be borne in mind when choosing welding parameters. This research work discusses the difficulties and challenges of successful welding of UHSS. Common welding methods used in welding of UHSS are briefly reviewed to gain a better understanding of the effects of different welding parameters and methods. The paper finds that UHSS can be satisfactorily welded with laser welding, electron beam welding, resistance welding, and conventional arc welding methods, but the quality of the weld is dependent on appropriate control of several parameters and variables of the welding processes.
APA, Harvard, Vancouver, ISO, and other styles
3

El Ghazouani, Laila, Lahouari Bounoua, Joseph Nigro, Majid Mansour, Hassan Radoine, and Hanane Souidi. "Combining Satellite Data and Spatial Analysis to Assess the UHI Amplitude and Structure within Urban Areas: The Case of Moroccan Cities." Urban Science 5, no. 3 (September 14, 2021): 67. http://dx.doi.org/10.3390/urbansci5030067.

Full text
Abstract:
Landsat-8 surface temperature and the European Space Agency land cover are used to assess the impact of land cover on the Urban Heat Island (UHI) and Urban Heat Sink (UHS). We analyzed five Moroccan cities selected for their different local climate, size, and typology during summer at three different spatial scales. The results show multiple causes defining the different forms and amplitudes of the UHI, namely: the ambient climate, the proximity to the sea, the presence of landscaped areas, and the color of building roofs and walls. Contrary to what was expected, the vegetation was not systematically an island of coolness, either because of its typology or its irrigation status. In the coastal cities of Tangier and Casablanca, UHIs around 20 °C are observed on the seaside, whereas a UHS of up to 11 °C is observed between the city center and the southern periphery of Casablanca. A moderate amplitude UHI of 7 °C is formed in the mountainous city of Ifrane. For cities built in desert-like environments, well-defined UHSs between 9 °C and 12 °C are observed in Smara and Marrakech, respectively. At a finer scale, towns recorded lower temperatures than their immediate surroundings, which are attributed to evaporation from irrigated plants.
APA, Harvard, Vancouver, ISO, and other styles
4

Zhang, Yu, Zi Jian Wang, Yi Lin Wang, Zhi Jian Zhang, and Yi Sheng Zhang. "A Study on the Relationship between Hardness and Magnetic Properties of Ultra-High Strength Steel." Advanced Materials Research 1063 (December 2014): 78–81. http://dx.doi.org/10.4028/www.scientific.net/amr.1063.78.

Full text
Abstract:
Magnetic nondestructive testing methods including eddy current testing, magnetic memory, magnetic Barkhausen noise and so on are widely used in testing mechanical properties of ferromagnetic parts. Experiments were done to study the relationship between hardness and magnetic properties of ultra-high strength steel (UHSS), which plays an important role in automobile industry. The magnetic properties of UHSS specimens with different hardness were studied. The result shows that there is a strong connection between hardness and magnetic properties. Coercive force of UHSS is proportional to the hardness. This can be used to explain certain mechanism of magnetic nondestructive testing method such as connection between hardness and Barkhausen noise.
APA, Harvard, Vancouver, ISO, and other styles
5

Chen, T. C., Wen Hao Chien, Yuan Tsung Wang, Ching Yuan Huang, Hung Wei Yen, and Hsin Chih Lin. "Hydrogen Assisted Tempered Martensite Embrittlement of Ultra High Strength Martensitic Steel." Materials Science Forum 880 (November 2016): 29–32. http://dx.doi.org/10.4028/www.scientific.net/msf.880.29.

Full text
Abstract:
The demand for new materials that provide excellent structural performance while reducing weight and being cost-effectively manufactured is increasing. For applications with high strength requirements, ultra-high strength steels (UHSS) have been widely used. However, with such a high strength level, UHSS are very sensitive to the hydrogen that could be ease by the tempering process. In this research, the correlation of hydrogen and tempering process on commercial UHSS 15B30 has been studied. Results show that the tensile strength (TS) of as-quenched 15B30 is about 1900MPa. After tempering treatment of the quenched 15B30, the TS decreases from 1600MPa to 1200MPa with tempering temperature increased from 200°C to 400°C. The 15B30 specimens, being subjected to hydrogen charge, exhibit the dramatic reduction of mechanical strengths.
APA, Harvard, Vancouver, ISO, and other styles
6

Wagner, L., H. Schauer, H. Pauli, and J. Hinterdorfer. "Improved bendability characterization of UHSS sheets." IOP Conference Series: Materials Science and Engineering 651 (November 25, 2019): 012019. http://dx.doi.org/10.1088/1757-899x/651/1/012019.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Wang, Chao, Bin Zhu, Liang Wang, Yi Lin Wang, and Yi Sheng Zhang. "GPU Accelerated Finite Element Simulation for Ultra-High Strength Steel Quenching." Advanced Materials Research 842 (November 2013): 337–40. http://dx.doi.org/10.4028/www.scientific.net/amr.842.337.

Full text
Abstract:
During the hot stamping of ultra-high strength steel (UHSS), the quenching effect of the mold on the sheet plays an important role to achieve the transition from austenite to martensite. Thus a finite element model for the quenching process of UHSS is established in this paper. The key points of the model include contact thermal conduction and the latent heat processing of phase transforming. Finite element program has been developed to calculate the temperature field of the UHSS quenching process, and temperature measurement device was used to get the temperature-time curve of the mold and the sheet to validate the calculation results. It can be concluded that the latent heat and thermal contact resistance have a critical influence on the temperature filed of the sheet during the hot stamping process. Finally, the parallel computation technology based on GPU(Graphics processing unit) was adopted to accelerate the calculation.
APA, Harvard, Vancouver, ISO, and other styles
8

Thien, Nguyen Trung. "EFFECT OF ELECTRIC CURRENT PULSE ON MECHANICAL PROPERTIES OF ULTRA-HIGH STRENGTH STEEL 1180CP." Vietnam Journal of Science and Technology 54, no. 5A (March 22, 2018): 82. http://dx.doi.org/10.15625/2525-2518/54/5a/12064.

Full text
Abstract:
Effect of the pulse electric current on mechanical properties of an ultra-high strength steel (UHSS) is experimentally investigated. A single pulse of electric current with a short duration of 0.36 sec is applied to the specimen under tensile plastic loading. The experimental result showed that flow stress of the UHSS nearly instantly drops at moment of electric current, following strain hardening until necking of the specimen. Uniform elongation completely depends on the pulsing strain, while ultimate tensile strength slightly changes after electric current.
APA, Harvard, Vancouver, ISO, and other styles
9

Amraei, Mohsen, Lingjia Zong, Antti Ahola, and Timo Björk. "Bonded CFRP to high strength steels." Rakenteiden Mekaniikka 52, no. 4 (December 31, 2019): 222–35. http://dx.doi.org/10.23998/rm.76267.

Full text
Abstract:
Research on the bond performance of CFRP-strengthened steel have been done for the past years, but it has mainly focused on lower grades of steel. The performance of the bond between ultra-high modulus (UHM) CFRP and high/ultra-high strength steel (HSS/UHSS) is investigated in this paper. A series of experiments have been conducted, with single/double side-strengthened (SSS/DSS) HSS/UHSS with CFRP laminates using Araldite adhesive. It was found that strengthening up to the ultimate strength of the DSS specimens is feasible. However, debonding happens at the ultimate strength of SSS specimens.
APA, Harvard, Vancouver, ISO, and other styles
10

Park, Sungpill, and Yongjai Kwon. "The Study of Roll-forming Technology for UHSS Hydroformed Parts." Transactions of the Korean Society of Automotive Engineers 23, no. 1 (January 1, 2015): 41–48. http://dx.doi.org/10.7467/ksae.2015.23.1.041.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "UHSS"

1

Li, Nan. "Fundamentals of materials modelling for hot stamping of UHSS panels with graded properties." Thesis, Imperial College London, 2013. http://hdl.handle.net/10044/1/29134.

Full text
Abstract:
The aim of this study is to develop the fundamentals of materials modelling to enable effective process control of hot stamping for forming UHSS panels with graded properties for optimised functional performance. A selective heating and press hardening strategy is adopted to grade the microstructural distribution of a press hardened component through differential heat treatment of the blank prior to forming. Comprehensive material models, to enable prediction of austenite formation and deformation behaviours of boron steel under hot forming conditions, as well as the dynamic response of a press hardened part with tailored properties in collision situations, have been developed based on experimental investigations and mechanism studies. The research work is concerned with four aspects: feasibility of the selective heating and press hardening strategy, austenite formation in boron steel during selective heating, thermo-mechanical properties of boron steel under hot stamping, and mechanical properties of boron steel with various microstructures at room temperature. Feasibility studies for the selective heating and press hardening strategy were carried out through a designed experimental programme. A lab-scale demonstrator part was designed and relevant manufacturing and property-assessment processes were defined. A heating technique and selective-heating rigs were designed to enable certain microstructural distributions in blanks to be obtained. A hot stamping tool set was designed for forming and quenching the parts. Test pieces were formed under various heating conditions to obtain demonstrator parts having variously graded microstructures. Microstructural distributions in the as-formed parts were determined through hardness testing and microstructural observation. Ultimately, the structural performance of the parts was evaluated through bending tests. Heat treatment tests were performed to study the formation of austenite in boron steel during selective heating. Characterisation of the effects of heating rate and temperature on transformation behavior was conducted based on the test results. A unified austenite formation model, capable of predicting full or partial austenite formation under both isothermal and non-isothermal conditions, was developed, and determined from the heat treatment test results. Hot tensile tests were performed to study the thermo-mechanical properties of the austenite and initial phase (ferrite and pearlite) of boron steel. The viscoplastic deformation behaviours of the both phase states were analysed in terms of strain rate and temperature dependence based on the test results. A viscoplastic-damage constitutive model, capable of describing the thermo-mechanical response of boron steel in a state corresponding to hot stamping after selective heating, was proposed. Values of constants in the model for both the austenite and initial phase were calibrated from the hot tensile test results. Dynamic and quasi-static tensile testes combined with hardness testing and microstructural observation were carried out to study the mechanical properties of press hardened boron steel with various microstructures at room temperature. Based on the results, the strain rate sensitivity of the martensite and initial phase of boron steel was characterised; the relationships between mechanical properties (true ultimate tensile strength, 0.2% proof stress, elongation, and hardness) and phase composition (volume fraction of martensite), for boron steel with various microstructures, were rationalised. Finally, a viscoplastic-damage constitutive model, capable of predicting the mechanical response of a press hardened boron steel part with graded properties being subjected to crash situations in automobiles, were developed, and determined from the test results.
APA, Harvard, Vancouver, ISO, and other styles
2

Steffens, Benjamin R. [Verfasser]. "Hydrogen assisted cracking of UHSS for military aerospace applications / Benjamin R. Steffens ; Bundesanstalt für Materialforschung (BAM), Berlin." Hamburg : Helmut-Schmidt-Universität, Bibliothek, 2018. http://d-nb.info/1162511052/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Tolf, Erik. "Challenges in Resistance Welding of Ultra High Strength Steels." Licentiate thesis, KTH, Svetsteknologi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-167985.

Full text
Abstract:
Increasing the use of Ultra High Strength Steels (UHSS) in vehicle bodystructures is important for reducing weight and cutting CO2 emissions. This thesis investigates challenges in resistance welding that can be a barrier to implementing UHSS as a replacement for low strength steels in vehicle structures. Empirical research has been performed to offer new approaches for improved joint strength and to increase knowledge on cracking mechanisms in resistance projection welding and resistance spot welding of UHSS. By optimising the current build-up phase and peak current during the first milliseconds of weld time, it was shown that the strength could be improved by up to two-fold for projection welded joints. An approach to improve the ductility and strength of resistance spotwelds in UHSS using reduced cooling time was unsuccessful. The reduced cooling rate after weld metal solidification did not fully create the desired softened microstructure. The study on the surface cracking mechanism in resistance spot welded dual-phase UHSS showed that cracking is linked to the galvanization method. It is proposed that formation of aluminium oxide layers on the electrode tips increases the surface temperature and thereby increases the probability for liquid metal embrittlement and surface cracking.

QC 20150526

APA, Harvard, Vancouver, ISO, and other styles
4

Cora, Omer Necati. "DEVELOPMENT OF RAPID DIE WEAR TEST METHOD FOR ASSESSMENT OF DIE LIFE AND PERFORMANCE IN STAMPING OF ADVANCED/ULTRA HIGH STRENGTH STEEL (A/UHSS) SHEET MATERIALS." VCU Scholars Compass, 2009. http://scholarscompass.vcu.edu/etd/2003.

Full text
Abstract:
Automotive companies are actively pursuing to increase the use of high-strength-lightweight alloys such as aluminum, magnesium, and advanced/ultra high-strength steels (A/UHSS) in body panel and structural part applications to achieve fuel efficiency while satisfying several environmental and safety concerns. A/UHSS sheet materials with higher strength and crashworthiness capabilities, in comparison to mild steel alloys, are considered as a near-term (i.e., ~5 years) choice of material for body and structural components due to their relatively low cost when compared with other lightweight materials such as aluminum and magnesium. However, A/UHSS materials present an increased level of die wear and springback in stamping operations when compared to the currently used mild steel alloys due to their higher surface hardness and high yield strength levels. In order to prevent the excessive wear effect in stamping dies, various countermeasures have been proposed such as alternative coatings, modified surface enhancements in addition to the use of newer die materials including cast, cold work tool, and powder metallurgical tool steels. In this study, a new die wear test method was developed and tested to provide a cost-effective solution for evaluating various combinations of newly developed die materials, coatings and surfaces accurately and rapidly. A new slider type of test system was developed to replicate the actual stamping conditions including the contact pressure state, sliding velocity level and continuous and fresh contact pairs (blank-die surfaces). Several alternative die materials in coated or uncoated conditions were tested against different AHSS sheet blanks under varying load, sliding velocity circumstances. Prior to and after wear tests, several measurements and tribological examinations were performed to obtain a quantified performance evaluation using commonly adapted wear models. Analyses showed that (1) the rapid wear method is feasible and results in reasonable wear assessments, (2) uncoated die materials are prone to expose severe form wear (galling, scoring, etc.) problems; (3) coated samples are unlikely to experience such excessive wear problems, as expected; (4) almost all of the the recently developed die materials (DC 53, Vancron 40, Vanadis 4) performed better when compared to conventional tool steel material AISI D2, and (5) in terms of coating type, die materials coated with thermal diffusion (TD) and chemical vapor deposition (CVD) coatings performed relatively better compared to other tested coating types; (6) It was seen that wear resistance correlated with substrate hardness.
APA, Harvard, Vancouver, ISO, and other styles
5

Defaisse, Clément. "Étude de la rupture ductile d'un acier à très haute résistance pour des applications aéronautiques." Thesis, Paris Sciences et Lettres (ComUE), 2018. http://www.theses.fr/2018PSLEM010/document.

Full text
Abstract:
Les pièces des structures aéronautiques telles que les arbres des turboréacteurs, les roues, les freins ou les trains d’atterrissage sont fabriquées avec des aciers à très haute résistance. Leur structure martensitique, renforcée par des précipités de taille inférieure au micromètre, confère à ces aciers une excellente résistance : leur limite d'élasticité peut dépasser les 1900 MPa et leur résistance mécanique atteindre les 2300 MPa. Ces matériaux sont choisis pour ces excellentes propriétés mécaniques sur la base de leur comportement en traction. Toutefois, leur déformation à striction (maximum de la charge) est de quelques pourcents seulement. Les méthodes de dimensionnement sous chargement critique actuelles considèrent qu’aucun point de la structure ne doit être soumis à une déformation supérieure à la déformation à striction. Ce type d’approche est ici très conservatrice puisque les aciers THR continuent de se déformer plastiquement, ceci jusqu’à plusieurs dizaines de pourcent après le début de la striction. L’objet de ces travaux est de définir un modèle d’amorçage de la rupture applicable au dimensionnement de ces structures pour un acier type : le ML340. Ce matériau est actuellement utilisé dans les arbres de turboréacteur LEAP.Le comportement élasto-plastique du matériau a été étudié grâce à des essais menés sur différents types d’éprouvettes : tractions lisses, axisymétriques entaillées, déformation plane, plates entaillées, traction-torsion. Un modèle simple de von Mises à écrouissage isotrope permet de reproduire l’ensemble de la base. Ce modèle est ajusté sur les essais de traction pour lesquels un suivi optique de la variation du diamètre minium a été mis en place. La loi d’ ́écrouissage est ensuite ajustée en prenant en compte à la fois l'élongation et la variation du diamètre. On montre en particulier que l'extrapolation du comportement, méthode consistant à prolonger les données obtenues avant l'apparition de la striction, peut conduire à une mauvaise prédiction du comportement des éprouvettes.La base expérimentale a également été employée pour étudier l’amorçage de la rupture. L’observation des faciès montre un mode de rupture ductile avec des cupules fines. Cependant, l'initiation est brutale pour tous les essais et le développement de l’endommagement en volume reste très limité, voire nul. Ces constatations conduisent à proposer l’emploi d’un critère d’amorçage découplé : ce modèle fait intervenir la triaxialité des contraintes et le paramètre de Lode. Cette double dépendance est nécessaire pour bien décrire la rupture sur toute la base expérimentale. L’identification des paramètres du modèle se base sur l'évaluation des champs mécaniques à partir des simulations élasto-plastiques par éléments finis représentant les essais. Le modèle est également capable de prédire les emplacements des points d’amorçages observés, ces informations peuvent être utilisées pour ajuster plus finement le modèle
Aeronautical structures such as jet engines shafts, wheels, brakes or landing gears are made of Ultra High Strenth Steels (UHSS). Due to their hard martensitic matrix reinforced with second phase particles, such steels exhibit extreme mechanical resistance, their yield strength can overcome 1900 MPa and their ultimate tensile strength can reach 2300 MPa. Such materials are selected based on their tensile properties, however strain at necking (maximum load) is only few percent. Conventional certified design methods assume that failure occurs when a given point of the structure reaches this strain. Regarding UHSS this approach is very conservative; those materials are still able to bear large strains after necking start. The aim of this work is to define a failure initiation model able to predict ductile failure of such structures for extremes loadings. The ML340 steel, material of LEAP jet-engine shafts, have been selected for this study.Elasto-plastic behavior is investigated with various mechanical tests. Uniaxial tensile test were performed on round bars specimens, either smooth or notch, and flat specimens, either u notched or plane strain. Traction/torsion and compression/torsion biaxial tests were performed on tubes specimens. A simple isotropic von Mises plasticity model was found sufficient to describe mechanical behavior of this experimental database. This model was calibrated based on round smooth tensile tests, a longitudinal extensometer and a non contact method, measuring diameter reduction, were used in order to monitor strains. Hardening law was adjust with both sets of data using a reverse method, hence material striction is take into account during the identification. Identification method extrapolating plastic behavior based on tensile data measured before the striction begining is shown to overperdict plastic behavior.Failure initiation was also investigated through fracture tests. Every fractography display very fine dimples related to ductile fracture, however fracture apears to be very brutal and very few damage was observed underneath fracture surface. As a result an uncoupled fracture initiation model is proposed, damage indicator is driven by both stress triaxiality and a Lode parameter. This dual dependency is necessary in order to represent fracture for the whole database. Model parameters identification relies on the evaluation of local stress state for each test, this could be achieved with 3D elasto-plastic simulations. As a result fracture model was able to predict correct fracture initiation point positions observed on round tensile tests and flat u notch tests
APA, Harvard, Vancouver, ISO, and other styles
6

Hartman, Trent J. "Friction Stir Spot Welding of Ultra-High Strength Steel." BYU ScholarsArchive, 2012. https://scholarsarchive.byu.edu/etd/3302.

Full text
Abstract:
Friction stir spot welding (FSSW) is quickly becoming a method of interest for welding of high strength steel (HSS) and ultra high strength steel (UHSS). FSSW has been shown to produce high quality welds in these materials, without the drawbacks associated with fusion welding. Tool grade for polycrystalline cubic boron nitride (PCBN) tools has a significant impact on wear resistance, weld quality, and tool failure in FSSW of DP 980 steel sheet. More specifically, for a nominal composition of 90% CBN, the grain size has a significant impact on the wear resistance of the tool. A-type tools performed the best, of the three grades that were tested in this work, because the grain size of this grade was the finest, measuring from 3-6 microns. The effect of fine grain size was less adhesion of DP 980 on the tool surface over time, less abrasive wear, and better lap shear fracture loads of the welds that were produced, compared to the other grades. This is explained by less exposure of the binder phase to wear by both adhesion and abrasion during welding of DP 980. A-type tools were the most consistent in both the number of welds per tool, and the number of welds that reached acceptable lap shear fracture loads. B-type tools, with a bimodal grain size distribution (grain size of 4 – 40 microns) did a little bit better than C-type tools (grain size of 12-15 microns) in terms of wear, but neither of them were able to achieve consistent acceptable lap shear fracture load values after the first 200 welds. In fact only one out of five C-type tools was able to produce acceptable lap shear fracture loads after the first 100 welds.
APA, Harvard, Vancouver, ISO, and other styles
7

Jahn, Axel. "Umformbarkeit laserinduktionsgeschweißter Strukturen aus höherfesten Stahlfeinblechen." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2011. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-73795.

Full text
Abstract:
Konventionelles Laserstrahlschweißen von Halbzeugen aus höherfesten Stahlfeinblechen führt zum drastischen Verlust an Umformbarkeit im Schweißnahtbereich. Durch integrierte induktive Erwärmung können der Temperaturverlauf beim Schweißen modifiziert, die Verbindungseigenschaften beeinflusst und die Umformbarkeit verbessert werden. Die Zusammenhänge zwischen Prozessparametern und mechanischen Verbindungseigenschaften werden beschrieben und Anwendungspotenziale aufgezeigt.
APA, Harvard, Vancouver, ISO, and other styles
8

Sederstrom, Jack H. "Spot Friction Welding of Ultra High-Strength Automotive Sheet Steel." BYU ScholarsArchive, 2007. https://scholarsarchive.byu.edu/etd/842.

Full text
Abstract:
Spot friction welding (SFW) was performed on ultra high strength steel (UHSS) steel sheet commonly used in automobile manufacturing. Alloys studied included DP780, DP780EG, DP980, and DF140T sheet steel of varying thickness from 1.2 mm to 1.4 mm. Welding was accomplished using a PCBN standard tool. Weld strengths were then compared to a proposed AWS standard. Initial hardness readings were taken in cross sectioned samples. Grain structure in a SFW is presented. Resistance spot welds were created in three steels. This study focuses on the strength of SFW joints as compared to traditional resistance spot welding (RSW) in welding like materials to one another. Cycle times of SFW were also evaluated and compared to production rate cycle times of RSW.
APA, Harvard, Vancouver, ISO, and other styles
9

Jahn, Axel. "Umformbarkeit laserinduktionsgeschweißter Strukturen aus höherfesten Stahlfeinblechen." Doctoral thesis, Fraunhofer Institut für Werkstoff- und Strahltechnik, 2010. https://tud.qucosa.de/id/qucosa%3A25673.

Full text
Abstract:
Konventionelles Laserstrahlschweißen von Halbzeugen aus höherfesten Stahlfeinblechen führt zum drastischen Verlust an Umformbarkeit im Schweißnahtbereich. Durch integrierte induktive Erwärmung können der Temperaturverlauf beim Schweißen modifiziert, die Verbindungseigenschaften beeinflusst und die Umformbarkeit verbessert werden. Die Zusammenhänge zwischen Prozessparametern und mechanischen Verbindungseigenschaften werden beschrieben und Anwendungspotenziale aufgezeigt.
APA, Harvard, Vancouver, ISO, and other styles
10

Müller, Katrin Margarete. "Spätergebnisse nach tiefer Beinvenenthrombose Therapievergleich UHSK mit Heparin /." [S.l.] : [s.n.], 2001. http://archiv.ub.uni-marburg.de/diss/z2001/0294/.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "UHSS"

1

University, of Health Sciences (Lahore Pakistan). First four years of UHS, 2003-2007. Lahore: University of Health Sciences, 2007.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Before porn was legal: The erotica empire of Beate Uhse. Chicago: University of Chicago Press, 2011.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Mexiko im Werk von Bodo Uhse: Das nie verlassene Exil. New York: P. Lang, 1995.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

Horokhivsʹkyĭ, Levko. Dii︠a︡lʹnistʹ Ukraïnsʹkoï Helʹsynksʹkoï spilky na Tenopilʹshchyni ta nynishni︠a︡ realizat︠s︡ii︠a︡ prynt︠s︡ypiv UHS. Ternopilʹ: Aston, 2008.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Horokhivsʹkyĭ, Levko. Dii︠a︡lʹnistʹ Ukraïnsʹkoï Helʹsynksʹkoï spilky na Tenopilʹshchyni ta nynishni︠a︡ realizat︠s︡ii︠a︡ prynt︠s︡ypiv UHS. Ternopilʹ: Aston, 2008.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

Horokhivsʹkyĭ, Levko. Dii︠a︡lʹnistʹ Ukraïnsʹkoï Helʹsynksʹkoï spilky na Tenopilʹshchyni ta nynishni︠a︡ realizat︠s︡ii︠a︡ prynt︠s︡ypiv UHS. Ternopilʹ: Aston, 2009.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

Wie der Sex nach Deutschland kam: Der Kampf um Sittlichkeit und Anstand in der frühen Bundesrepublik. München: Siedler, 2011.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

Macwan'gi, Mubiana. Baseline survey for interventions to improve the efficiency of through-flows at large urban health centres (UHCs) in Lusaka, Zambia. [Lusaka]: Lusaka Urban District Health Management Team, 1997.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

Birgit, Schmidt. Wenn die Partei das Volk entdeckt: Anna Seghers, Bodo Uhse, Ludwig Renn u.a. : ein kritischer Beitrag zur Volksfrontideologie und ihrer Literatur. Münster: Unrast, 2002.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

Helm, Cecília Maria Vieira. Laudo antropológico: Povos indígenas da bacia do rio Tibagi, Kaingang e Guarani e os projetos das uhs Cebolão e São Jerônimo. Curitiba: COPEL-Geração, 1999.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "UHSS"

1

Patra, Pradip K., and Ashok Kumar Srivastava. "Correlation of Corrosion Resistance of Hot Rolled UHSS with Its Microstructure." In Springer Proceedings in Materials, 175–86. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-3937-1_18.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Ruan, Shangwen, Jianping Zhao, Zhenli Mi, Lan Su, and Pengzhi Cheng. "Simulation of Multi-step Tube Hot Gas Forming Process of a UHSS Torsion Beam." In Mechanical Engineering and Materials, 183–95. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-68303-0_15.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Goyal, Rakesh, and Mohamad El-zein. "Numerical Analysis and Experimental Study for Fatigue Life Behavior of HSLA and UHSS Welded Joints." In Lecture Notes in Mechanical Engineering, 185–226. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-4779-9_15.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Lindemann, Otto Christian. "Diskretion bei der Beate Uhse AG." In Datenschutz als Wettbewerbsvorteil, 43–44. Wiesbaden: Vieweg+Teubner Verlag, 2002. http://dx.doi.org/10.1007/978-3-322-90277-1_6.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Gillion, Jean François. "PHS-UHS® Ultrapro Hernia System Semi-Resorbable." In Vidèo-Atlas Chirurgie Herniaire Tome 1, 167–76. Paris: Springer Paris, 2010. http://dx.doi.org/10.1007/978-2-8178-0148-3_19.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

de los Frailes, Maite, and Emilio Diez. "Screening Technologies for G Protein-Coupled Receptors: From HTS to uHTS." In Methods in Molecular Biology, 15–37. Totowa, NJ: Humana Press, 2009. http://dx.doi.org/10.1007/978-1-60327-317-6_2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Kay, Steve A., and Tsuyoshi Hirota. "Ultra-High Throughput Screening (uHTS) Chemical Genetics to Identify Novel Chronotherapeutics." In Molecular Imaging for Integrated Medical Therapy and Drug Development, 167–75. Tokyo: Springer Japan, 2010. http://dx.doi.org/10.1007/978-4-431-98074-2_18.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Höper, Petra. "New Media: A Growth Market in Erotica and Pornography for Beate Uhse." In The Information Superhighway and Private Households, 173–82. Heidelberg: Physica-Verlag HD, 1996. http://dx.doi.org/10.1007/978-3-642-48423-0_15.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Barh, Debmalya, Shoaib Ahmad, and Atanu Bhattacharjee. "In Silico and Ultrahigh-Throughput Screenings (uHTS) in Drug Discovery: An Overview." In Pharmaceutical Biotechnology, 451–90. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2012. http://dx.doi.org/10.1002/9783527632909.ch18.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Pohlmann, Christian. "Short of Great Power Politics, Short of Impact: The UHIs in the Cold War." In Unauthorised Humanitarian Interventions in World Politics, 169–78. Wiesbaden: Springer Fachmedien Wiesbaden, 2020. http://dx.doi.org/10.1007/978-3-658-32179-6_9.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "UHSS"

1

Nemecek, Stanislav, and Tomas Muzik. "Microstructures and properties of uhss laser welds." In ICALEO® 2011: 30th International Congress on Laser Materials Processing, Laser Microprocessing and Nanomanufacturing. Laser Institute of America, 2011. http://dx.doi.org/10.2351/1.5062224.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Deng, Lin, Ming Lou, YongBing Li, and Blair E. Carlson. "Thermally Assisted Self-Piercing Riveting of Aluminum AA6061-T6 to Ultra-High Strength Steels." In ASME 2018 13th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/msec2018-6367.

Full text
Abstract:
Self-piercing riveting has been widely used in vehicle body manufacturing to join aluminum alloys or aluminum to steel. However, it is difficult to rivet ultra-high strength steel (UHSS) because of its resistance to piercing of the rivet. In this paper, a thermally assisted self-piercing riveting (TA-SPR) process was proposed to improve riveting of the UHSS, through locally preheating the UHSS sheet using an induction coil prior to the traditional self-piercing riveting (SPR) process. An experimental system consisting of inductive heating apparatus, conventional self-piercing riveting equipment and coupon transfer mechanism was established and the steps, e.g., preheating, coupons transfer and riveting, were automatically conducted at preset schedules. Based on experiments with this system, the effects of heating current, heating time and coil heating distance on riveting of AA6061-T6 and DP980 were examined systematically by metallurgical analyses and mechanical tests. It was found that an appropriate combination of heating current and heating time, e.g., 0.5s at 600A, could produce crack-free joints having 77.8% higher undercut and 24% higher lap-shear strength, compared to results obtained using a conventional SPR process.
APA, Harvard, Vancouver, ISO, and other styles
3

Noorsumar, Gulshan, Kjell Robbersmyr, Svitlana Rogovchenko, and Dmitry Vysochinskiy. "Crash Response of a Repaired Vehicle - Influence of Welding UHSS Members." In WCX SAE World Congress Experience. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2020. http://dx.doi.org/10.4271/2020-01-0197.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Järvenpää, Antti, Kari Mäntyjärvi, Marion Merklein, Antti määttä, Mikko Hietala, and Jussi Karjalainen. "Mechanical Properties of Laser Heat Treated 6 mm Thick UHSS-Steel." In THE 14TH INTERNATIONAL ESAFORM CONFERENCE ON MATERIAL FORMING: ESAFORM 2011. AIP, 2011. http://dx.doi.org/10.1063/1.3589699.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Patra, Pradip K., Srimanta Sam, Mrigandra Singhai, and Neel Kant. "Study on the Production of Ultra High Strength Steel (UHSS) in Thin Slab Caster." In International Conference on Automotive Materials & Manufacturing 2014. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2014. http://dx.doi.org/10.4271/2014-28-0027.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Cha, Munsoo, and Cheol-Ung Kim. "A Study on Development of Body Structure Using Hydroforming of a Thin-Walled UHSS Tube." In Asia Pacific Automotive Engineering Conference. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2013. http://dx.doi.org/10.4271/2013-01-0035.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Miskiw, E., S. Cho, K. Kuuskman, X. Ma, J. Yang, J. Patel, D. Zhang, and P. Cerilli. "Development of Ti-Nb Microalloyed HSLA and UHSS on a Thin-Slab Casting and Rolling Mill." In AISTech2019. AIST, 2019. http://dx.doi.org/10.33313/377/243.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Jiao, Jingsi, Bernard Rolfe, Joseba Mendiguren, Lander Galdos, and Matthias Weiss. "The effect of tooling design parameters on web-warping in the flexible roll forming of UHSS." In NUMISHEET 2014: The 9th International Conference and Workshop on Numerical Simulation of 3D Sheet Metal Forming Processes: Part A Benchmark Problems and Results and Part B General Papers. AIP, 2013. http://dx.doi.org/10.1063/1.4850113.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Miles, David J., Tim J. M. Bond, Raymond N. Burke, and Ruben van Schalkwijk. "Testing and Analysis of Steel Strip Reinforcement for Pipeline External Rehabilitation." In 2010 8th International Pipeline Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ipc2010-31099.

Full text
Abstract:
A new technology for external rehabilitation of pipelines, known as XHab™, has been developed. This method involves wrapping multiple layers of ultra-high strength steel strip (UHSS) in a helical form continuously over an extended length of pipeline using a dedicated forming and wrapping machine. The reinforcement afforded by the strip can be used to bring a defective section of pipe (e.g. externally corroded or dented) back to its original allowable operating conditions, or even to increase the allowable operating pressure if the desired operating conditions exceed the original pipeline design limits. This paper describes the full scale burst testing and analysis of defective pipes which have been repaired using the XHab process. The full scale test sections are 30″ × 0.5″ API 5L X52 DSAW pipe and include the following specimens: • Bare pipe with no defects; • Bare pipe with single machined defect; • Wrapped pipe with single machined defect and designed reinforcement; • Wrapped pipe with single machined defect and insufficient reinforcement; • Wrapped pipe with interacting defect array and designed reinforcement. The above full scale burst tests are supplemented by FEA models using ABAQUS. The material models for the steel pipe, UHSS strip, defect patch material and strip adhesive are based on measured data from the batch tests and tuned against the control burst test results. The structural behavior in the individual metallic and non-metallic elements can therefore be examined more closely, particularly in the region of the defect and where the wrapped strip crosses seam and girth welds.
APA, Harvard, Vancouver, ISO, and other styles
10

Wallin, Kim, Sakari Pallaspuro, Päivi Karjalainen-Roikonen, and Pasi Suikkanen. "Applicability of the Master Curve Method to Ultra High Strength Steels." In ASME 2015 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/pvp2015-45554.

Full text
Abstract:
Although Ultra High Strength Steels (UHSS) with nominal strengths up to 1500 MPa have been available on the market for many years, the use of these steels in the civil engineering industry is still rather uncommon. One critical point limiting the use of UHSS steels lies in their rather poorly documented fracture properties in relation to more conventional steels covered by the codes. The major concept governing the assessment of steels is the Master Curve (MC) methodology. It provides a description for the fracture toughness scatter, size effect and temperature dependence in the ductile to brittle transition region. It enables a complete characterization of brittle fracture toughness of a material based on only a few small size specimens. The method combines a theoretical description of the scatter, a statistical size effect and an empirically found temperature dependence of fracture toughness. The fracture toughness in the brittle fracture regime is thus described with only one parameter, the transition temperature T0. At this temperature the mean fracture toughness for a 25.4 mm thick specimen is 100 MPa√m. The Master Curve method as defined in ASTM E1921-13a is applicable to ferritic structural steels with yield strength between 275 MPa and 825 MPa. Very few studies have been made with respect to the applicability of the Master Curve to Ultra High Strength Steels with yield strengths in the excess of 900 MPa. This is the topic of this work. Focusing on novel directly quenched high performance steels, the applicability of the Master Curve methodology with special emphasis on the temperature dependence will be investigated. Possible improvements to the Master Curve will be proposed for further consideration.
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "UHSS"

1

Yoshida, Hiroshi, Akihiro Uenishi, and Naruhiko Nomura. Improvement of Impact Energy Absorption by Using of High-Strength Steel, Part VI~Modification for UHSS of Fracture Model of Spot Weld. Warrendale, PA: SAE International, May 2005. http://dx.doi.org/10.4271/2005-08-0237.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Uin, Janek. Ultra-High-Sensitivity Aerosol Spectrometer (UHSAS) Instrument Handbook. Office of Scientific and Technical Information (OSTI), April 2016. http://dx.doi.org/10.2172/1251410.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Smith, Jeff. Uranium Holdup Survey Program (UHSP) Lean Improvement Project. Office of Scientific and Technical Information (OSTI), October 2017. http://dx.doi.org/10.2172/1412794.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Lee, R. C. Computation of USGS Soil UHS and Comparison to NEHRP and PC 1 Seismic Response. Office of Scientific and Technical Information (OSTI), April 2000. http://dx.doi.org/10.2172/785055.

Full text
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'UHSS' for particular source types:
Journal articles Dissertations / Theses Books
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography