We demonstrated that the simultaneous DIC and IR can be very useful in analysing the dynamic thermomechanical behavior of glass fiber composites. The studied material is very unhomogeneous and therefore difficult to characterize by simple experiments. The nominal or average stress over the cross sectional area of the specimen does not adequately describe the local stresses inside the layered specimen. Therefore, numerical modeling and experiments are needed to solve the complex behavior of the material. In this work we presented experiments and a small part of the modeling work that is carried out. The modeling will continue in future publications and similar experimental work is also expected for model verification and characterization of the mechanical behavior. In this work we were able to resolve shear bands both in full field deformation and full field temperature measurements during high rate loading. See more details in the full article published in International Journal of Impact Engineering.
Publication: How much heat is generated in dynamic brittle fracture of fiber reinforced polymer ?
Simultaneous high speed DIC and high speed IR reveal strain localizations and adiabatic heating in compressive fractures of pultruded glass fiber reinforced polymers