Multiscale multifunctional progressive fracture of composite structures

Autor:	C. C. Chamis, Levon Minnetyan
Rok vydání:	2011
Předmět:	Stress (mechanics) Fracture toughness Materials science Structural Fracture Mechanics business.industry Composite number Fracture (geology) Micromechanics Fracture mechanics Structural engineering Composite material business Finite element method
Zdroj:	Computational Methods and Experimental Measurements XV.
ISSN:	1743-355X 1746-4064
DOI:	10.2495/cmem110031
Popis:	A new approach is described for evaluating fracture in composite structures. This approach is independent of classical fracture mechanics parameters like fracture toughness. It relies on computational simulation and is programmed in a stand-alone integrated computer code. It is multiscale, multifunctional because it includes composite mechanics for the composite behavior and finite element analysis for predicting the structural response. It contains seven modules; layered composite mechanics (micro, macro, laminate), finite element, updating scheme, local fracture, global fracture, stress based failure modes, and fracture progression. The computer code is called CODSTRAN (Composite Durability Structural ANalysis). It is used in the present paper to evaluate the global fracture of four composite shell problems and one composite built-up structure. Results show that the composite shells. Global fracture is enhanced when internal pressure is combined with shear loads. The old reference denotes that nothing has been added to this comprehensive report since then.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::cd97ee23dfed044db1cedfdc75e59698 https://doi.org/10.2495/cmem110031 Zobrazit plný text záznamu