TY  - JOUR
U1  - Wissenschaftlicher Artikel
A1  - Lienhard, Jörg
A1  - Schulenberg, Lukas
T1  - Strain rate dependent multiaxial characterization of long fiber reinforced plastic
JF  - Composites Part B: Engineering
N2  - Long-fiber reinforced thermoplastics (LFT) were characterized for automotive applications with high rate experiments in a range of strain rate from 10⁻³s⁻¹ up to 10²s⁻¹. High-speed video imaging with digital image correlation (DIC) and a high-speed infra-red camera are applied to investigate the strain and temperature development during four different testing types. Different states of stress were investigated to provide adequate input data for simulation. A new fracture initiation criterion is introduced. Nearly pure shear load could be reached with a specifically designed specimen. It was found that global deformations rise with the strain rate, while local strains decrease. The adiabatic temperature-rise enlarges the deformation zone, impedes strain localization and leads to higher energy absorption at higher strain rates.
KW  - LFT
KW  - High-rate deformation
KW  - Infra-red measurement
KW  - Adiabatic-heating
Y1  - 2018
SN  - 1359-8368 (Print)
SS  - 1359-8368 (Print)
SN  - 1879-1069 (Online)
SS  - 1879-1069 (Online)
U6  - https://doi.org/10.1016/j.compositesb.2017.12.031
DO  - https://doi.org/10.1016/j.compositesb.2017.12.031
VL  - 141
SP  - 164
EP  - 173
PB  - Elsevier BV
ER  -