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M.A. Stiftinger, F.G. Rammerstorfer, "Semi-Analytical Finite Element Formulations for Delamination Prediction in Layered Composite Structures", in B.H.V. Topping, (Editor), "Advances in the Analysis and Design of Composites", Civil-Comp Press, Edinburgh, UK, pp 61-72, 1996. doi:10.4203/ccp.41.3.2

Abstract

A semi-analytical approach for predicting the tri-axial stress states near free edges in laminated fiber composites is presented in this paper. An analytical solution procedure for the interlaminar stresses which is based on an explicit description of the edge stresses and a minimum energy approach is implemented into a finite shell element formulation. Hence, the interlaminar stresses arising near free edges in layered materials can be calculated within a finite element analysis, using the stress results of the finite element solution as input values for the analytical solution procedure.

For this purpose a new locking free four noded shell element for laminated fiber reinforced materials is developed. Based on an analytical approach from the literature, which is extended to handle arbitrary stacking sequences and load configurations (including thermal loading), an algorithm for predicting the free edge stress field, is derived.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 41 ADVANCES IN THE ANALYSIS AND DESIGN OF COMPOSITES Edited by: B.H.V. Topping Paper III.2 Semi-Analytical Finite Element Formulations for Delamination Prediction in Layered Composite Structures M.A. Stiftinger and F.G. Rammerstorfer Institute of Lightweight Structures and Aerospace Engineering, Vienna Technical University, Vienna, Austria doi:10.4203/ccp.41.3.2 purchase the full-text of this paper Full Bibliographic Reference for this paper M.A. Stiftinger, F.G. Rammerstorfer, "Semi-Analytical Finite Element Formulations for Delamination Prediction in Layered Composite Structures", in B.H.V. Topping, (Editor), "Advances in the Analysis and Design of Composites", Civil-Comp Press, Edinburgh, UK, pp 61-72, 1996. doi:10.4203/ccp.41.3.2 Abstract A semi-analytical approach for predicting the tri-axial stress states near free edges in laminated fiber composites is presented in this paper. An analytical solution procedure for the interlaminar stresses which is based on an explicit description of the edge stresses and a minimum energy approach is implemented into a finite shell element formulation. Hence, the interlaminar stresses arising near free edges in layered materials can be calculated within a finite element analysis, using the stress results of the finite element solution as input values for the analytical solution procedure. For this purpose a new locking free four noded shell element for laminated fiber reinforced materials is developed. Based on an analytical approach from the literature, which is extended to handle arbitrary stacking sequences and load configurations (including thermal loading), an algorithm for predicting the free edge stress field, is derived. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £58 +P&P)
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