TY - CONF AU - Moritzer, Elmar AU - Flachmann, Felix ID - 26390 T2 - PPS-36 Proceedings TI - Process-reliable Injection Molding of Highly Filled Wood-Plastic-Composites (WPC) ER - TY - JOUR AU - Teichert, Jeannine ID - 44200 IS - 1 JF - Networking Knowledge TI - Mediating close friendship intimacy in times of (social) distance VL - 14 ER - TY - JOUR AU - Grabo, Matti AU - Acar, Emre AU - Kenig, Eugeny ID - 22265 JF - Renewable Energy SN - 0960-1481 TI - Modeling and improvement of a packed bed latent heat storage filled with non-spherical encapsulated PCM-Elements VL - 173 ER - TY - CONF AU - Rostek, Tim AU - Makeieva, Hanna AU - Homberg, Werner ED - Daehn, G. ED - Cao, J. ED - Kinsey, B. ED - Tekkaya, A. E. ED - Vivek, A. ED - Yoshida, Y ID - 21477 SN - 978-3-030-75380-1 T2 - Proceedings of the 13th International Conference on the Technology of Plasticity TI - Cutting Blades for Food Processing Applications Manufactured Using Innovative Spin Forming ER - TY - JOUR AB - The predictive quality of numerical simulations for mechanical joining processes depends on the implemented material model, especially regarding the plasticity of the joining parts. Therefore, experimental material characterization processes are conducted to determine the material properties of sheet metal and generate flow curves. In this regard, there are a number of procedures which are accompanied by varying experimental efforts. This paper presents various methods of determining flow curves for HCT590X as well as EN AW-6014, including varying specimen geometries and diverse hardening laws for extrapolation procedures. The flow curves thus generated are compared considering the variety of plastic strains occurring in mechanical joining processes. The material data generated are implemented in simulation models for the joining technologies, clinching and self-piercing riveting. The influence of the varied methods on the predictive accuracy of the simulation model is analysed. The evaluation of the differing flow curves is achieved by comparing the geometric formation of the joints and the required joining forces of the processes with experimentally investigated joints. AU - Böhnke, Max AU - Kappe, Fabian AU - Bobbert, Mathias AU - Meschut, Gerson ID - 22798 IS - 6 JF - Materials Testing SN - 2195-8572 TI - Influence of various procedures for the determination of flow curves on the predictive accuracy of numerical simulations for mechanical joining processes VL - 63 ER - TY - JOUR AB - The increasing use of multi-material constructions lead to a continuous increase in the use of mechanical joining techniques due to the wide range of joining possibilities as well as the high load-bearing capacities of the joints. Nevertheless, the currently rigid tool systems are not able to react to changing boundary conditions, like changing the material-geometry-combination. Therefore research work is crucial with regard to versatile joining systems. In this paper, a new approach for a versatile self-piercing riveting process considering the joining system as well as the auxiliary joining part is presented. AU - Kappe, Fabian AU - Bobbert, Mathias AU - Meschut, Gerson ID - 34226 JF - Key Engineering Materials KW - Mechanical Engineering KW - Mechanics of Materials KW - General Materials Science SN - 1662-9795 TI - New Approach for Versatile Self Piercing Riveting: Joining System and Auxiliary Part VL - 883 ER - TY - JOUR AU - Wituschek, Simon AU - Kappe, Fabian AU - Lechner, Michael ID - 30200 JF - Production Engineering TI - Investigation of the influence of varying tumbling strategies on a tumbling self-piercing riveting process ER - TY - CHAP AU - Dahms, Frederik AU - Homberg, Werner ID - 22766 SN - 2367-1181 T2 - Forming the Future TI - Investigations and Improvements in 3D-DIC Optical Residual Stress Analysis—A New Temperature Compensation Method ER - TY - JOUR AB - The increase of the thermal conductivity of PUR foam in the insulation of the cabinet is an important cause for aging processes of household refrigerating appliances. To determine the influence of the PUR foam aging on energy consumption, the development of a new measurement method is necessary be- cause current methods influence the aging behavior of household refrigerators and are therefore not applicable in general. Based on a latent heat sink, constructed as an ice water bucket, a new measure- ment method is developed to determine the k ·A value over time. With this method, the k ·A value of four household refrigerating appliances was determined over an interval of 14 months. The k ·A value increased between 3.6% and 11.5% during this period. AU - Paul, Andreas AU - Baumhögger, Elmar AU - Elsner, Andreas AU - Moczarski, Lukas AU - Reineke, Michael AU - Sonnenrein, Gerrit AU - Hueppe, Christian AU - Stamminger, Rainer AU - Hoelscher, Heike AU - Wagner, Hendrik AU - Gries, Ulrich AU - Freiberger, Alfred AU - Becker, Wolfgang AU - Vrabec, Jadran ID - 20921 JF - International Journal of Refrigeration SN - 0140-7007 TI - Determining the heat flow through the cabinet walls of household refrigerating appliances ER - TY - JOUR AB - Domestic refrigeration appliances are standard household commodities. Although policies, such as the energy labelling, prompted technical improvements and decreased appliance energy consumption throughout recent decades, important parameters were disregarded. These refer to the efficiency loss over time and the consumer behaviour. The objective of this contribution was to develop a dynamic energy model to determine the power consumption of refrigeration appliances considering degradation factors and behaviour. These were included by model parameters for direct consumer interactions, such as the storage behaviour, door openings and temperature setting, as well as indirect actions, e.g. exposing an appliance to specific temperature conditions at an installation site. For this, an online-survey was conducted to evaluate the consumer behaviour. A total of 706 consumers participated in the national questionnaire, serving as input for the dynamic energy model. It was found that the efficiency loss increases the power consumption by at least 1% annually, leading to an excess of 10% after 10 years of usage. Another important finding was that 32.5% of appliance’s power consumption results from consumer behaviour, whereas the promotion of behavioural changes leads to a significant decrease of the consumer-induced consumption. Consequently, this study provides a tool to evaluate the impact of policies targeting refrigeration appliances, stressing that efficiency loss and behaviour should be integrated into future policy approaches. AU - Hueppe, Christian AU - Geppert, Jasmin AU - Moenninghoff-Juessen, Julia AU - Wolff, Lena AU - Stamminger, Rainer AU - Paul, Andreas AU - Elsner, Andreas AU - Vrabec, Jadran AU - Wagner, Hendrik AU - Hoelscher, Heike AU - Becker, Wolfgang AU - Gries, Ulrich AU - Freiberger, Alfred ID - 27290 JF - Energy Policy SN - 0301-4215 TI - Investigating the real life energy consumption of refrigeration appliances in Germany: Are present policies sufficient? ER -