In this work, a combination of nanoindentation experiment and finite element modeling is proposed in order to obtain approximate material behavior of PLLA polymer in hydroxyapatite (HAp)/poly-L-lactide (PLLA) composite. Knowing these properties is important since the processing conditions used in hot pressing of composites with thermoplastic matrix strongly influence final mechanical properties of material in the solid state. A bi-linear material behavior is adopted for the polymer phase of the HAp/PLLA composite. Material behavior model, stress-strain curve, is determined by modulus of elasticity, yield stress and work-hardening rate. This combined method is proposed to determine material behavior before (modulus of elasticity) and after yield point (work hardening rate) of polymer phase after the hot-pressing of the composite. .
Keywords:
nanoindentation / finite element model / biocomposites
TY - JOUR
AU - Balać, Igor
AU - Aleksendrić, D.
AU - Tang, C. Y.
AU - Tsui, C. P.
AU - Uskoković, Petar
AU - Uskoković, Dragan
PY - 2007
UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1044
AB - In this work, a combination of nanoindentation experiment and finite element modeling is proposed in order to obtain approximate material behavior of PLLA polymer in hydroxyapatite (HAp)/poly-L-lactide (PLLA) composite. Knowing these properties is important since the processing conditions used in hot pressing of composites with thermoplastic matrix strongly influence final mechanical properties of material in the solid state. A bi-linear material behavior is adopted for the polymer phase of the HAp/PLLA composite. Material behavior model, stress-strain curve, is determined by modulus of elasticity, yield stress and work-hardening rate. This combined method is proposed to determine material behavior before (modulus of elasticity) and after yield point (work hardening rate) of polymer phase after the hot-pressing of the composite. .
PB - Savez inženjera metalurgije Srbije, Beograd
T2 - Metalurgija
T1 - Approximation of material behaviour of PLLA polymer in HAp/PLLA biocomposite material using nanoindentation and finite element method
EP - 286
IS - 4
SP - 277
VL - 13
UR - https://hdl.handle.net/21.15107/rcub_technorep_1044
ER -
@article{
author = "Balać, Igor and Aleksendrić, D. and Tang, C. Y. and Tsui, C. P. and Uskoković, Petar and Uskoković, Dragan",
year = "2007",
abstract = "In this work, a combination of nanoindentation experiment and finite element modeling is proposed in order to obtain approximate material behavior of PLLA polymer in hydroxyapatite (HAp)/poly-L-lactide (PLLA) composite. Knowing these properties is important since the processing conditions used in hot pressing of composites with thermoplastic matrix strongly influence final mechanical properties of material in the solid state. A bi-linear material behavior is adopted for the polymer phase of the HAp/PLLA composite. Material behavior model, stress-strain curve, is determined by modulus of elasticity, yield stress and work-hardening rate. This combined method is proposed to determine material behavior before (modulus of elasticity) and after yield point (work hardening rate) of polymer phase after the hot-pressing of the composite. .",
publisher = "Savez inženjera metalurgije Srbije, Beograd",
journal = "Metalurgija",
title = "Approximation of material behaviour of PLLA polymer in HAp/PLLA biocomposite material using nanoindentation and finite element method",
pages = "286-277",
number = "4",
volume = "13",
url = "https://hdl.handle.net/21.15107/rcub_technorep_1044"
}
Balać, I., Aleksendrić, D., Tang, C. Y., Tsui, C. P., Uskoković, P.,& Uskoković, D.. (2007). Approximation of material behaviour of PLLA polymer in HAp/PLLA biocomposite material using nanoindentation and finite element method. in Metalurgija
Savez inženjera metalurgije Srbije, Beograd., 13(4), 277-286.
https://hdl.handle.net/21.15107/rcub_technorep_1044
Balać I, Aleksendrić D, Tang CY, Tsui CP, Uskoković P, Uskoković D. Approximation of material behaviour of PLLA polymer in HAp/PLLA biocomposite material using nanoindentation and finite element method. in Metalurgija. 2007;13(4):277-286.
https://hdl.handle.net/21.15107/rcub_technorep_1044 .
Balać, Igor, Aleksendrić, D., Tang, C. Y., Tsui, C. P., Uskoković, Petar, Uskoković, Dragan, "Approximation of material behaviour of PLLA polymer in HAp/PLLA biocomposite material using nanoindentation and finite element method" in Metalurgija, 13, no. 4 (2007):277-286,
https://hdl.handle.net/21.15107/rcub_technorep_1044 .
