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Flexible Packaging for High Pressure Treatments: Delamination Onset and Design Criteria of Multilayer Structures

Multi-layer flexible polymeric films employed for high pressure treatments of food packaging for pasteurization and sterilization frequently display delamination phenomena. This problem limits packaging reliability used for this treatment technology. This contribution is aimed at understanding the delamination phenomena of packaging structures under high pressures. Development of...

Design procedure for thin three-layer plates made of a depleted material

The efficiency of a long-span structure relies on how material is locally distributed within a fixed structural shape. In this paper a design procedure for thin plates made of three layers of a depleted material subject to a distributed vertical load is proposed. The investigation is driven by the idea of the optimal material organization and has the objective of maximizing the...

Influence of actual plastic hinge placement on the behavior of ductile frames

The ultimate load and collapsing modes of steel frames under combined vertical and horizontal forces are investigated through finite element (FE) modelling and limit analysis. Consideration is given to a frequently overlooked problem which is the kinematics arising from the actual rotation of the plastic hinges under axial force and bending moment. This fact draws attention to...

An Analytical Approach to the Analysis of Inhomogeneous Pipes under External Pressure

II, via Claudio 21, 80125 Naples, Italy Received 19 February 2012; Revised 6 May 2012; Accepted 7 May 2012 Academic Editor: Ioannis K. Chatjigeorgiou Copyright © 2012 Massimiliano Fraldi and

An Analytical Approach to the Analysis of Inhomogeneous Pipes under External Pressure

II, via Claudio 21, 80125 Naples, Italy Received 19 February 2012; Revised 6 May 2012; Accepted 7 May 2012 Academic Editor: Ioannis K. Chatjigeorgiou Copyright © 2012 Massimiliano Fraldi and

An Analytical Approach to the Analysis of Inhomogeneous Pipes under External Pressure

II, via Claudio 21, 80125 Naples, Italy Received 19 February 2012; Revised 6 May 2012; Accepted 7 May 2012 Academic Editor: Ioannis K. Chatjigeorgiou Copyright © 2012 Massimiliano Fraldi and