Interlaminar fracture toughness in carbon fiber reinforced plastics has been studied primarily using unidirectional or symmetric laminates. However, even quasi-isotropic laminates, delamination caused by an out-of-plane impact could result asymmetric, partial Thus, evaluating the interlaminar asymmetric particularly that of Mode II associated with resistance, is necessary. Asymmetric laminates ...

In this paper a new method to determine the fracture properties and strain energy release rate for Carbon- Polyester composite has been introduced.  Fracture characteristics such as critical stress intensity factor and critical strain energy release rate for mode I, mode II and mixed mode loading were determined using Arcan type specimen. 130 layers of carbon fiber polyester woven composite wit...

Interlaminar failure of bonded composite structures is quite often. Nowadays there a lot lightweight high reliability carbon or glass fiber (CFRP GFRP) reinforced polymer constructions with rods. In order to better understand the delamination processes rods, analytical equations were analyzed. Later, mode I interlaminar experiments CFRP rods 3x3 mm performed and fracture toughness GIC = 135 J/m...

BACKGROUND Chronic neck and upper extremity pain associated with cervical origin is common, and cervical interlaminar epidural steroid injections (CILESIs) are frequently used to manage the symptoms of cervical spinal disorders. However, CILESIs are associated with risks such as dural puncture and cord injury. OBJECTIVES We aimed to determine the optimal needle tip visualization, in order to ...

Unidirectional carbon fiber-reinforced polymer nanocomposites were developed by adding alumina (Al2O3) and silicon carbide (SiC) nanoparticles using ultrasonication magnetic stirring. The uniform nanoparticle dispersions examined with a field-emission scanning electron microscope. nano-phase matrix was then utilized to fabricate the hybrid hand lay-up compression molding. weight fractions selec...