Alfred Puck

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Alfred Puck (* 1927 ) is a German engineer and professor emeritus .

In 1953 he completed a degree in mechanical engineering at the Hamburg University of Applied Sciences (then the Hamburg School of Engineering). 1967 he was at the TU Berlin Dr.-Ing. PhD . From 1979 to 1989 he was professor for construction technology at the University of Kassel . Then he worked a. a. with the Institute for Plastics Processing at RWTH Aachen University .

Both in his industrial activities and in research, he focuses on the design and calculation of fiber-plastic composite components.

In research today, Prof. emer. Puck stands for the physically-based strength criterion for unidirectionally reinforced fiber-plastic composites , which is based on the ideas of Charles Augustin de Coulomb , Christian Otto Mohr , B. Paul and Zvi Hashin . The advantage of this criterion lies in the differentiation between the failure types fiber breakage (Fb) and intermediate fiber breakage ( Zfb) in contrast to the non-differentiating criteria such as e.g. B. the Tsai-Wu criterion by Stephen W. Tsai and Edward M. Wu . For both types of failure, separate effort values ​​(a kind of reserve factor) are calculated on the basis of the individual layer parameters and the acting load. The inter- fiber break is further characterized by so-called break modes , whereby the calculated break angle is of decisive importance.

A rather extensive comparison of different strength criteria for fiber-plastic composites was carried out in the "World-Wide Failure Exercise".


Literature on the subject

  • Failure Criteria In Fiber Reinforced Polymer Composites: The World-Wide Failure Exercise . Editors: MJ Hinton, AS Kaddour, PD Soden. Elsevier 2004
  • Analysis of Failure In Fiber Polymer Laminates - The Theory of Alfred Puck . M. Knops. Springer 2008

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