the aim of this research is to investigate the effect of carbon fiber reinforced polymer (cfrp) composite fabric on monotonic and fatigue behaviors of reinforced concrete beams. to control the failure occurrence, a small notch was induced at the middle span in bottom surface for all of the studied rc specimens. totally 12 beams were tested from which 6 beams tested under monotonic and 6 other t...

It is difficult to conduct cyclic tensile fatigue tests for fine ceramics because of its high brittleness, and a little eccentricity of loading axis and gripping device gives inaccurate strength data. So, a major part of cyclic fatigue tests have been carried out under bending load conditions, for the allowance of misalignment of loading axis is generous to some extent in the case of bending fa...

Fatigue strength of welded joints is typically independent the parent material static strength; however, there are two exceptions from this rule—post-weld treated and high-quality joints. The reason for both absence sharp weld transitions. Thus, fatigue life not fully governed by crack propagation but also initiation. This intensified fact that initiation behaviour proportional to properties. C...

The available fatigue theories have been examined using simple specimens subjected to bending or tension-compression loads. Therefore, the stress fields have been generally one or two dimensional. Anti-roll bar is a component belongs to the suspension system of the vehicles. In spite of having simple circular section, due to the having several curvatures, this component experiences a three-dime...

Compression springs were prepared from Cr-Si high strength spring steel and coated with pure Zn and ZnNi by electroplating process. The effect of baking after electroplating as well as applying an electroless nickel interlayer on the fatigue and fatigue corrosion of the springs was investigated. The results were analyzed using weibull statistical model. A considerable improvement (8%) in fati...

The effects of through-thickness reinforcement of carbon/epoxy laminates with thin pins on the in-plane tensile properties, tensile fatigue life and failure mechanisms are investigated. Tensile studies in the 0 fibre direction are performed on unidirectional and quasiisotropic laminates reinforced with different volume contents and sizes of fibrous composite z-pins. Microstructural analysis rev...

The thermo mechanical reliability of plated through holes (PTH) in printed circuit boards (PCB) normally is determined by different tests (e.g. thermo cycle test (TCT), interconnect stress test (IST), highly accelerated thermal shock (HATS). During these tests the PTH Cu is exposed to stresses and strains which are below the tensile strength and the fracture strain, respectively, which leads to...

PURPOSE/OBJECTIVES To determine whether clinical characteristics, physical fitness, or physical activity predict fatigue in older, long-term breast cancer survivors. DESIGN Cross sectional. SETTING National Cancer Institute-designated cancer center in Portland, OR. SAMPLE 47 women (X age = 69 years) who were at least one year beyond treatment completion, including surgery, radiation, chem...