Advances in Architectural Geometry 2015 - A Double-Layered Timber Plate Shell: Computational Methods for Assembly, Prefabrication, and Structural Design

2016 ◽  
Author(s):  
Robeller, Christopher ◽  
Konakovic, Mina ◽  
Dedijer, Mira
Keyword(s):  
Computational Methods ◽  
Structural Design ◽  
Architectural Geometry

Delamination Under Fatigue Loads in Composite Laminates: A Review on the Observed Phenomenology and Computational Methods

2014 ◽  
Vol 66 (6) ◽  
Author(s):  
Brian L. V. Bak ◽  
Carlos Sarrado ◽  
Albert Turon ◽  
Josep Costa
Keyword(s):  
Design Process ◽  
Computational Methods ◽  
Structural Design ◽  
Composite Laminates ◽  
Composite Structures ◽  
State Of The Art ◽  
Computational Simulation ◽  
Simulation Methods ◽  
Short Term ◽  
Current State

Advanced design methodologies enable lighter and more reliable composite structures or components. However, efforts to include fatigue delamination in the simulation of composites have not yet been consolidated. Besides that, there is a lack of a proper categorization of the published methods in terms of their predictive capabilities and the principles they are based on. This paper reviews the available experimental observations, the phenomenological models, and the computational simulation methods for the three phases of delamination (initiation, onset, and propagation). It compiles a synthesis of the current state-of-the-art while identifying the unsolved problems and the areas where research is missing. It is concluded that there is a lack of knowledge, or there are unsolved problems, in all categories in the field, but particularly in the category of computational methods, which in turn prevents its inclusion in the structural design process. Suggested areas where short-term and midterm research should be focused to overcome the current situation are identified.

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