Pull-out experiments were performed on four carbon fiber-reinforced polymer (CFRP) ground anchors simulating their applications in rock and soil. The CFRP tendons used in these anchors comprise a single-strap end on both the ground and air sides. On the ground side, the single-strap end is embedded in a cylinder of high-strength grout which fits into the borehole. In rock applications, the grou...

This article proposes a new theory for predicting the crack bridging performance of random short fibers involved in cementitious composites. The current theoretical model for estimating crack bridging performance of Random Short Fiber Reinforced Cement Composites (RSFRCC) under tension is limited to specific constituent properties: friction dominant fiber-matrix interface and complete fiber pul...

In the short-fibered non-striated probascis retractor of phascolosoma (Golfingia gouldii) , 3 conduction is entirely by intrinsic nerve fibers. Evidence for nerve conduction is: velocity of propagation (1.3 and 0.3 m/second for fast and slow responses, respectively), abundance of nerve fibers, block by nerve-blocking drugs, failure of propagation after nerve degeneration, and detection of nerve...

A concept for reusable, in-plane polymer microfluidic interconnects that are directly integrated into microfluidic systems is reported. Convenient, n-demand world-to-chip interfaces are established by utilizing a pin-and-socket approach in which commercially available non-coring syringe eedles are manually inserted through predefined polydimethylsiloxane (PDMS) septa integrated at the inlets/ou...

Achieving high strength in fiber reinforced structural composites requires effective load transfer between the high-performance reinforcement, e.g., carbon nanotube (CNT) yarn, and matrix. Various processing approaches to enhance interaction CNT matrix were investigated. The apparent interfacial shear strengths (IFSS) of pristine yarns, post-treated yarns (cross-linked, functionalized, polymer ...

In the present study, the transient stress distribution caused by a break in the fibers of an adhesive bonding is investigated. Transient stress is a dynamic response of the system to any discontinuity in the fibers from detachment time till their equilibrium state (or steady state). To derive the governing dynamic equilibrium equations shear lag model is used. Here, it is assumed that the tens...