Numerical simulation of the impact response of natural fibre composites
Aransáez Ortega, María (2019)
2019
Industrial Engineering and Management
Tekniikan ja luonnontieteiden tiedekunta - Faculty of Engineering and Natural Sciences
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Hyväksymispäivämäärä
2019-08-05
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:tty-201906111881
https://urn.fi/URN:NBN:fi:tty-201906111881
Tiivistelmä
The aim of this thesis is study essential stages that develop a FEM, finite element method, via Abaqus to reproduce one experimental test requires. The laboratory research that inspired this thesis was carry out by the Tampere University of Technology material department.
The laboratory experiment was an impact, of a spherical projectile, against a composite plate. The essential and crucial characteristic of that empirical project was the material, which is a natural fiber composite (NFC). This becomes a key factor in the numerical design, because the software does not contain an in-build material conceived to reproduce NFC behaviour. The need to develop a analytical model and afterwards generated a VUMAT is explored.
The thesis has two main parts, the fist one focus in delving and setting the best method to replicate the impact over a traditional composite material plate with the tools Abaqus 2017 provides. After this task, the method will be used in the simulation of a impact over a natural fiber composite plate. With the obtained results the need of a user-material generated by a user-subroutine in Abaqus will be assess. In the case this is required the correct choice will be a VUMAT subroutine, it is used to define the mechanical constitutive behaviour of a material, for elements type C3D8R.
The laboratory experiment was an impact, of a spherical projectile, against a composite plate. The essential and crucial characteristic of that empirical project was the material, which is a natural fiber composite (NFC). This becomes a key factor in the numerical design, because the software does not contain an in-build material conceived to reproduce NFC behaviour. The need to develop a analytical model and afterwards generated a VUMAT is explored.
The thesis has two main parts, the fist one focus in delving and setting the best method to replicate the impact over a traditional composite material plate with the tools Abaqus 2017 provides. After this task, the method will be used in the simulation of a impact over a natural fiber composite plate. With the obtained results the need of a user-material generated by a user-subroutine in Abaqus will be assess. In the case this is required the correct choice will be a VUMAT subroutine, it is used to define the mechanical constitutive behaviour of a material, for elements type C3D8R.