... variability is necessary to derive the full benefit from a reliability analysis. This article evaluates pavement input variability impact on the design reliability and variability of rutting performance. It further studies systematically the variability of inputs such as layer modulus and thickness...

...Phillip Blankenship; Ramon Bonaquist ABSTRACT The scope of this research involves the evaluation of the effects of specimen preparation variables—mixing temperature, binder time at mixing temperature, mixer type, mixing time, loose mix conditioning temperature, loose mix conditioning depth, loose...

... impressive applications of metal AM parts in demanding aerospace applications, there remain concerns about the variability in mechanical properties of parts made with these processes. This variability leads to concerns by program managers and other decision-makers and a reluctance to potentially use metal AM...

... the variability within and between multiple calibrations to evaluate the current calibration procedure and assess whether field measurements of a surface can be directly compared to calibration test results. We performed multiple calibrations with three common walkway tribometers on one set of reference surfaces...

..., cementitious materials, and sometimes admixtures; no sand or aggregates. Currently there is no standard production method for CP cylinders. As such, the objectives of this article are to assess the variability of CP mechanical properties from multiple methods and then recommend a CP cylinder preparation method...

... performance. In addition to that, the input variabilities’ influence on target reliability and pavement performance is not addressed in these volumetric-based specifications. The aim of this article is to introduce a reliability-based specification for the quality control of top-down cracking in asphalt...

... the same response spectrum, can result in obviously different displacement responses, and the friction variability on the contact surface provides additional complications for the seismic responses. References Wei , B. , “ Study of the Applicability of Modal Pushover Analysis on Irregular...

...Jiupeng Zhang; Dongliang Hu; Fenghua Yang; Jianzhong Pei; Ruiguo Lu This paper presents a research on the variability of dynamic modulus of asphalt mixtures because of the variations of raw materials by error propagation theory. The coefficient of variation of dynamic module, COVE, was derived from...

... design parameters as well as the associated variability will significantly contribute to the decision-making process of pavement maintenance and rehabilitation. References Hiltunen , D. R. and Roque , R. , “ A Mechanics-Based Prediction Model for Thermal Cracking of Asphaltic Concrete...

... and seller), mix type, application rate, and overlay interface conditions on the variability of nuclear gage and core density measurements was studied. The data were also used to study the influence of the several measurement variables on the ability to achieve target density. Variability and the ability...

...GA Miller Five laboratories undertook a study to assess interlaoratory variability and bias in strain-cycle fatigue testing of 1.2-mm-thick sheet specimens. In addition, one laboratory evaluated the effects of specimen geometry, actuator restraint, extensometer mounting surface, etc., on validity...

...RP Wei; W Wei; GA Miller Variability in experimental data on fatigue crack growth kinetics reflects contributions not only from material property variations and environmental and other uncontrolled variables but also from measurement precision used in determining the primary data (that is, crack...

...WG Clark, Jr; SJ Hudak, Jr To provide the data necessary to develop a recommended practice for fatigue crack growth rate testing, an extensive interlaboratory (round robin) program was conducted and the variability and bias associated with the current state of the art of fatigue crack growth rate...