Characterization of the translaminar cohesive law
When a fibre-reinforced composite laminate is subjected to traction or compression, it develops a relatively large Fracture Process Zone where material toughening mechanisms such as matrix cracking, fibre-bridging and fibre pull-outs take place. The damage onset and damage propagation are well defin...
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| Tipo de recurso: | tesis doctoral |
| Estado: | Versión publicada |
| Fecha de publicación: | 2017 |
| País: | España |
| Institución: | CBUC, CESCA |
| Repositorio: | TDR. Tesis Doctorales en Red |
| OAI Identifier: | oai:www.tdx.cat:10803/406960 |
| Acceso en línea: | http://hdl.handle.net/10803/406960 http://mediaserver.csuc.cat/tdx/documents/55/13/66/55136662928008905951616947857134478012/ http://mediaserver.csuc.cat/tdx/documents/97/01/23/97012382813004556901554709972096320202/ |
| Access Level: | acceso abierto |
| Palabra clave: | Cohesive law Llei cohesiva Ley cohesiva Fracture Fractura Compact tension Tensió compacta Tensión compacta Fracture toughness Tenacitat a la fractura Tenacidad a la fractura Laminates Laminats Laminados 621 |
| Sumario: | When a fibre-reinforced composite laminate is subjected to traction or compression, it develops a relatively large Fracture Process Zone where material toughening mechanisms such as matrix cracking, fibre-bridging and fibre pull-outs take place. The damage onset and damage propagation are well defined from a cohesive model point of view, although no standard procedure has been yet developed to characterize the translaminar Cohesive Law. The present Ph.D. thesis proposes an objective inverse method for obtaining the Cohesive Law from a single Compact Tension test. The proposed methodology has been correlated with numerical results, and has been satisfactorily used to characterize this property in various laminates, both in traction and compression |
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