Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 2597-2615 |
| Fachzeitschrift | Engineering fracture mechanics |
| Jahrgang | 2008 |
| Ausgabenummer | 75 |
| Publikationsstatus | Veröffentlicht - 2008 |
| Extern publiziert | Ja |
Abstract
Schlagwörter
- delamination, progressive damage, finite element, cohesive element, cohesive zone, interface element
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in: Engineering fracture mechanics, Jahrgang 2008, Nr. 75, 2008, S. 2597-2615.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - An interface element for the simulation of delamination in unidirectional fiber-reinforced composite laminates
AU - Balzani, C.
AU - Wagner, W.
PY - 2008
Y1 - 2008
N2 - Unidirectional fiber-reinforced composite laminates are widely used in aerospace industry for a great variety of structural parts. In order to enhance the exploitation of material reserves, there is a need for the integration of progressive damage scenarios in the design phase. Due to their hazardous effects on the load-carrying capacity of composite structures, this work focusses on the simulation of delaminations. A finite element based on a cohesive zone approach is developed. Two constitutive laws are proposed. One is characterized by linear degradation after delamination onset, the other is governed by exponential softening response. The damage process is history-dependent leading to an irreversible stiffness degradation in damaged zones. The practicability of the proposed model and the assets and drawbacks of the two material laws are shown by some numerical examples.
AB - Unidirectional fiber-reinforced composite laminates are widely used in aerospace industry for a great variety of structural parts. In order to enhance the exploitation of material reserves, there is a need for the integration of progressive damage scenarios in the design phase. Due to their hazardous effects on the load-carrying capacity of composite structures, this work focusses on the simulation of delaminations. A finite element based on a cohesive zone approach is developed. Two constitutive laws are proposed. One is characterized by linear degradation after delamination onset, the other is governed by exponential softening response. The damage process is history-dependent leading to an irreversible stiffness degradation in damaged zones. The practicability of the proposed model and the assets and drawbacks of the two material laws are shown by some numerical examples.
KW - delamination
KW - progressive damage
KW - finite element
KW - cohesive element
KW - cohesive zone
KW - interface element
UR - http://www.scopus.com/inward/record.url?eid=2-s2.0-40749128074&partnerID=MN8TOARS
U2 - 10.1016/j.engfracmech.2007.03.013
DO - 10.1016/j.engfracmech.2007.03.013
M3 - Article
VL - 2008
SP - 2597
EP - 2615
JO - Engineering fracture mechanics
JF - Engineering fracture mechanics
SN - 0013-7944
IS - 75
ER -