The following information was submitted:
Transactions: INTERNATIONAL JOURNAL of MECHANICS
Transactions ID Number: 19-716
Full Name: AMINE BELOUFA
Position: Associate Professor
Age: ON
Sex: Male
Address: 10 RUE DE COLLEVILLE
Country: FRANCE
Tel: 00 33 6 15 62 34 55
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E-mail address: beloufaamine@yahoo.fr
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Title of the Paper: Numerical and experimental optimization of mechanical stress, contact temperature and electrical contact resistance of power automotive connector
Authors as they appear in the Paper: Amine BELOUFA
Email addresses of all the authors: beloufaamine@yahoo.fr
Number of paper pages: 11
Abstract: One of the major difficulties of the use of power automotive connectors is the increase of their electrical contact resistance in the running time. This paper attempts to fill this gap and discloses the minimisation of the transient electrical contact resistance and contact temperature by the experimental and numerical means. The tested contact samples have the sphere/plane contact shape in order to simulate the real contact in the power automotive connectors and were made with high copper alloys. These contact samples were submitted to high current (100 A) and different contact forces (50 and 100 N). Experimental results showed that the lower transient values of electrical contact resistance and contact temperature correspond to the contact sample made with copper alloy C19210 and which is submitted to the highest contact force (100 N). In order to more minimize the electrical contact resistance of the contact sample made of copper alloy C19210, finite element mod!
els were developed with one contact point and with multipoint contacts using a commercial code. Deformation of contact surfaces, numerical transient values of contact resistance and contact temperature were calculated basing to the indirect coupling program which is developed by an APDL language. This program can make the coupling between the mechanical and thermoelectric fields and takes into account the elasto-plastic behaviour of the material C19210 which is identified by tensile tests. Results showed that the sample with multipoint contact presents a transient values of contact resistance and contact temperature lower than the ones obtained with one contact point, also the maximum mechanical Von Mises stress obtained for the model with multipoint contacts is not only lower than the yield stress of the material C19210 but also lower than the one obtained for one contact point. Therefore, the gain for the model with multipoint contacts was triple.
Keywords: Design optimization, Electrical contact resistance, Temperature, Transient analysis, Finite element, Mechanical stress, Experimental tests.
EXTENSION of the file: .pdf
Special (Invited) Session: Minimization by FEM of the transient electrical contact resistance and contact temperature of power automotive connector
Organizer of the Session: 104-144
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