Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Modelling Of Hydrothermal Aging Of Short Flax Fiber Reinforced
  Composites   As a contribution to the prediction of the evolutionary behavior of
biocomposites in service conditions, this study focused on the simulation of
the hydrothermal aging of short natural fiber reinforced composites made by
extrusion/injection molding. We endeavored to model the reversible
modifications of the behavior of PLA and PLA/flax composites when immersed in
water at different temperatures (20, 35 and 50 {\textdegree}C). A numerical
model accounting for the heterogeneous mechanisms involved during aging such as
water diffusion and the resulting swelling and plasticizing of polymers was
implemented. Simulated data proved to be in perfect accordance with
experimental results as long as no irreversible mechanism was occurring. The
deviations of the simulated data from experimental results were limited at
35{\textdegree}C but significant at 50{\textdegree}C. Finally, the influence of
moisture on the local elastic modulus of flax fibers was inferred thanks to the
Halpin-Kardos homogenization model.

37
The categories of this paper are: supr-con
6
The categories of this paper are: astro-ph
15
The categories of this paper are: nucl-ex
14
The categories of this paper are: math-ph
36
The categories of this paper are: cmp-lg
35
The categories of this paper are: mtrl-th
2
The categories of this paper are: math
31
The categories of this paper are: ao-sci
5
The categories of this paper are: gr-qc
29
The categories of this paper are: funct-an
23
The categories of this paper are: solv-int
13
The categories of this paper are: quant-ph
9
The categories of this paper are: nlin
17
The categories of this paper are: q-fin
21
The categories of this paper are: adap-org
34
The categories of this paper are: chem-ph