Details
| Original language | English |
|---|---|
| Article number | 112446 |
| Journal | Composite structures |
| Volume | 251 |
| Early online date | 18 May 2020 |
| Publication status | Published - 1 Nov 2020 |
Abstract
Phase-Field (PF) methods of fracture have emerged as powerful modeling tools for triggering fracture events in solids. These numerical techniques efficiently alleviate mesh dependent pathologies and are very suitable for characterizing brittle as well as quasi-brittle fracture in a wide range of engineering materials and structures including fiber reinforced composites. In this work, a multi phase-field model relying on the Puck's failure theory is proposed for triggering intra-laminar cracking in long fiber reinforced composites. The current formulation encompasses the differentiation of fiber and inter-fiber (matrix-dominated) failure phenomena via the consideration of two independent phase-field damage-like variables, and the corresponding evolution equations and length scales. Moreover, for matrix-dominated deformation states, the present formulations endow the incorporation of plastic effects via an invariant-based plasticity model. Special attention is also devoted to its finite element implementation, which is conducted using the user-defined capabilities UMAT and UEL of ABAQUS, in conjunction with the thorough assessment of its thermodynamic consistency. Several representative applications pinpoint the applicability of the proposed computational tool.
Keywords
- A. Fiber reinforced composites, B. Fracture mechanics, C. Finite Element Method (FEM), D. Phase-field modeling
ASJC Scopus subject areas
- Materials Science(all)
- Ceramics and Composites
- Engineering(all)
- Civil and Structural Engineering
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In: Composite structures, Vol. 251, 112446, 01.11.2020.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - A multi phase-field fracture model for long fiber reinforced composites based on the Puck theory of failure
AU - Dean, A.
AU - Asur Vijaya Kumar, P. K.
AU - Reinoso, J.
AU - Gerendt, C.
AU - Paggi, M.
AU - Mahdi, E.
AU - Rolfes, R.
N1 - Funding information: JR is grateful to the Consejería de Economía y Conocimiento of the Junta de Andalucía (Spain) for financial support under the contract US-1265577-Programa Operativo FEDER Andalucía 2014–2020.
PY - 2020/11/1
Y1 - 2020/11/1
N2 - Phase-Field (PF) methods of fracture have emerged as powerful modeling tools for triggering fracture events in solids. These numerical techniques efficiently alleviate mesh dependent pathologies and are very suitable for characterizing brittle as well as quasi-brittle fracture in a wide range of engineering materials and structures including fiber reinforced composites. In this work, a multi phase-field model relying on the Puck's failure theory is proposed for triggering intra-laminar cracking in long fiber reinforced composites. The current formulation encompasses the differentiation of fiber and inter-fiber (matrix-dominated) failure phenomena via the consideration of two independent phase-field damage-like variables, and the corresponding evolution equations and length scales. Moreover, for matrix-dominated deformation states, the present formulations endow the incorporation of plastic effects via an invariant-based plasticity model. Special attention is also devoted to its finite element implementation, which is conducted using the user-defined capabilities UMAT and UEL of ABAQUS, in conjunction with the thorough assessment of its thermodynamic consistency. Several representative applications pinpoint the applicability of the proposed computational tool.
AB - Phase-Field (PF) methods of fracture have emerged as powerful modeling tools for triggering fracture events in solids. These numerical techniques efficiently alleviate mesh dependent pathologies and are very suitable for characterizing brittle as well as quasi-brittle fracture in a wide range of engineering materials and structures including fiber reinforced composites. In this work, a multi phase-field model relying on the Puck's failure theory is proposed for triggering intra-laminar cracking in long fiber reinforced composites. The current formulation encompasses the differentiation of fiber and inter-fiber (matrix-dominated) failure phenomena via the consideration of two independent phase-field damage-like variables, and the corresponding evolution equations and length scales. Moreover, for matrix-dominated deformation states, the present formulations endow the incorporation of plastic effects via an invariant-based plasticity model. Special attention is also devoted to its finite element implementation, which is conducted using the user-defined capabilities UMAT and UEL of ABAQUS, in conjunction with the thorough assessment of its thermodynamic consistency. Several representative applications pinpoint the applicability of the proposed computational tool.
KW - A. Fiber reinforced composites
KW - B. Fracture mechanics
KW - C. Finite Element Method (FEM)
KW - D. Phase-field modeling
UR - http://www.scopus.com/inward/record.url?scp=85087518176&partnerID=8YFLogxK
U2 - 10.1016/j.compstruct.2020.112446
DO - 10.1016/j.compstruct.2020.112446
M3 - Article
AN - SCOPUS:85087518176
VL - 251
JO - Composite structures
JF - Composite structures
SN - 0263-8223
M1 - 112446
ER -