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Hydroforming and Deep Drawing represent leading technologies for forming sheet metal components. The Materials Branch of the University of Duisburg-Essen works since more than 10 years in the field of Hydroforming and showed that Hydroforming increases the strength and that the weldings of hydroformed tubes normally exhibit a same (fatigue) strength as the base material. For an improvement of the economics of hydroforming spliced tubes were considered and standard hollow nodes for tubes nodes structures were developed and a proposal was made to produce these tubes in variable tools with segments or lamellas.A significant increase in economics of Hydroforming and of Deep Drawing of components is achieved by an introduction of the principles of an integral (cooperative) development of products. At the University of Duisburg-Essen the following stages are run through: CAD (the Material Branch uses PRO/ENGINEER J ), forming simulation -for that PAM-STAMP J (ESI) and PATRAN MARC MENTAT J (MSC) are used -FEM strength calculation and EVICD for a consideration of variable service loading.Forming simulation needs as basic material data the yield curve, the parameters of anisotropy and the Forming Limit Curve (FLC). For a determination of the FLC in Deep Drawing Tests suitable Nakazima specimens were developed by applying the principles of cooperative product development. The specimens could then successfully be validated in Deep Drawing Tests, which were instrumented by the advanced 3D-forming-analysis-system AUTOGRID inProcess (VIALUX). Various other forming simulations were also performed and some general rules for the performance of forming simulations were formulated. Finally, reverse engineering is briefly discussed.

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“…Es wird stets zuerst ein virtueller Prototyp realisiert, bevor der Prototyp und die Werkzeuge hergestellt werden [22,23]. Abb.…”

Section: Integrale Entwicklung Von Hydroformund Tiefzieh-blechformteilenunclassified

Umformtechnologie: Prozesse – Werkstoff- charakterisierung – Simulation – Verifikation

Nowack

Jung

Jöckel

et al. 2006

Mat.-wiss. u. Werkstofftech.

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“…In addition to high temperatures, many of these applications will be subjected to a service cycle under complex environments. [7][8][9] Therefore, C/SiC are expected to operate well with reliability in severe service environments, such as oxidizing environment, where various thermo-mechanical and cycling/fatigue loading conditions could be expected. Before a composite could be used in an application, its properties and damage behavior must be better understood.…”

Section: Introductionmentioning

confidence: 99%

Comparative Analysis of Low‐Cycle Fatigue Behavior of 2D‐C_f‐PyC/SiC Composites in Different Environments

Zhang

Cheng

Zhang

et al. 2014

Int J Applied Ceramic Tech

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A carbon fiber‐reinforced silicon carbide matrix composite with pyrolytic carbon interface (Cf‐PyC/SiC) and a protective coating was prepared by isothermal low pressure chemical vapor infiltration. Low‐cycle fatigue behavior of this material system was investigated at high temperatures up to 1800°C in a combustion environment and at room temperature in air, respectively. The combustion environment includes thermal mechanical loading, high temperatures, and oxidizing atmosphere. Low‐cycle fatigue tests were conducted at a maximum stress level of 180 MPa but at various temperatures and fatigue cycles. The residual strength variation of fatigue‐survived samples was due to different damage mechanisms in different environments.

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Einleitung

Orsolits¹,

Lackner²

2020

Virtual Reality Und Augmented Reality in Der Digitalen Produktion

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Cited by 6 publications

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Umformtechnologie: Prozesse – Werkstoff- charakterisierung – Simulation – Verifikation

Umformtechnologie: Prozesse – Werkstoff- charakterisierung – Simulation – Verifikation

Comparative Analysis of Low‐Cycle Fatigue Behavior of 2D‐C_f‐PyC/SiC Composites in Different Environments

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Was ist wirklich?

Cited by 6 publications

References 0 publications

Umformtechnologie: Prozesse – Werkstoff- charakterisierung – Simulation – Verifikation

Umformtechnologie: Prozesse – Werkstoff- charakterisierung – Simulation – Verifikation

Comparative Analysis of Low‐Cycle Fatigue Behavior of 2D‐Cf‐PyC/SiC Composites in Different Environments

Einleitung

Contact Info

Product

Resources

About

Comparative Analysis of Low‐Cycle Fatigue Behavior of 2D‐C_f‐PyC/SiC Composites in Different Environments