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In this study the distribution of the strain energy density (SED) in the natural femur as well as changes of it due to the implantation of an artificial hip joint has been investigated. Because of recently published theoretical considerations the volume related SED was used to describe the respective biomechanical loading situation completely. By means of parameter variation different load cases were simulated. The calculated SED-distributions were compared with the respective results of the natural femur. Thus, the known reasons of failures of hip joint prostheses has been proofed numerical. It was shown that the SED is a suitable mechanical parameter to simulate bone remodeling after hip joint replacement.

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A series of experiments were carried out for generating defined etch pits on various sectional planes of unidirectionally solidified Cd-Zn eutectic samples. This was done as preliminaries of real structure investigations. For that purpose chemical, electrolytic, and ion beam procedures were tested.An gerichtet erstarrten eutektischen Cd-Zn-Proben wurden Versuche zur definierten Erzeugung von Atzgruben auf verschiedenen Schnittflgchen vorgenommen, um Realstrukturuntersuchungen vorzubereiten. Zu diesem Zweck wurden chemische, elektrolytische und Ionenstrahlverfahren erprobt. a4 *