Simulationsgestützte Optimierung von Partiell Gehärteten Automobilteilen aus Mehrphasen-Stahl

In the automotive industry, increasing demands for weight reduction as well a safety requirements have motivated the use of locally optimized components. This study shows how crashrelevant side rails made of multi-phase steels can be improved in terms of local rigidity by local hardening, thus avoiding an increase of the cross section. Based on the experiments, the improvement of crash simulations by simulation of the entire production chain is investigated. A dedicated software tool was developed to enable the coupling of a wide range of commercially available FEM software products for forming, heat treatment, and crash simulations. One central aspect to be solved is the transfer of tensor-like properties such as stress or strain states

The psychometric evaluation of a three-dimension elementary science attitude survey

This study describes the development of an instrument to investigate elementary students attitudes toward science. As a result of the instrument development process employed, the finalized instrument consisted of 28-items separated into three dimensions. The instrument was found to exhibit acceptable ranges of internal consistency. Confirmatory Factor Analysis showed three factors that clustered into the three dimensions of attitude identified and concurrent validity was evidenced as correlations were found when comparing attitude measures with the instrument to students’ perceptions of their science classrooms. Based on the analyses completed, the instrument appears to be useful for assessing student attitude toward science

Developing Reusable Software Components

This paper presents some of the experiences gathered in the ESSI Process Improvement Experiment SEPIOR. The goal of SEPIOR is the systematic introduction of object-oriented and componentware development methodologies in the application field of computer-aided manufacturing systems. The paper focuses on the adoption of these technologies in the software company SEKAS. At the example of the development of an alarm management component the commercial, technical, and human impacts are analyzed

Managing Componentware Development --

We present the characteristics of component-based software engineering and derive the requirements for a corresponding development process

Bestimmung der oertlichen gas- und kuehlmittelseitigen Waermeuebergangskoeffizienten als Randbedingungen zur Vorausberechnung der thermischen Belastung der Bauteile Abschlussbericht. Berichtszeitraum: 1.1.1975-31.12.1976. Vorhaben Nr. 132 und 175

SIGLETIB Hannover: RA 1581 (241) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman