Contacts

Institute of Materials and Structures
Ķīpsalas street 6A, Riga,
LV1048, Latvia 
Project Manager / Leading Researcher
Kaspars KalniņšPhone: +371 67089164
Mob.: +371 26751614
kaspars.kalnins@rtu.lv
The material characterization is performed using, according to ASTM Standards. Tension, compression and shear samples are fabricated and placed between two aluminum plates for curing, giving a more uniform thickness distribution along their length. The entire setup is closed with a vacuum bag and heated using an oven up to 160 °C for 8 hours.
A summary of the calculated material properties are presented in Table 1, where the E_{i}^{j} is the elastic modulus along the fiber direction (i = 1) or matrix direction (i = 2) in tension (j = T) or compression (j = C). G_{12} is the shear modulus and v_{12} is the Poisson ratio. S_{i}^{j} is the maximum strength along the fiber direction (i = 1) or matrix direction (i = 2) in tension (j = T) or compression (j = C). S_{12} is the shear strength. t is the ply thickness.
The material properties are calculated using three different methodologies according to the system used to perform the deformation measurements: Strain gages, digital image correlation (DIC) or mechanical extensometer. The experimental setup for each case is presented in the following sections.
All the tests parameters needed to characterize the mechanical properties of the material are based on the ASTM standards. The type o test, samples and general information are presented on Table 2.
Institute of Materials and Structures
Ķīpsalas street 6A, Riga,
LV1048, Latvia
Project Manager / Leading Researcher
Kaspars Kalniņš
Phone: +371 67089164
Mob.: +371 26751614
kaspars.kalnins@rtu.lv