... The introduction of eight-seat chairlifts has raised the concern of increased risk of collision, falling, and possibly injury while unloading due to the greater number of passengers. This study aimed to investigate: if there was a difference in the fall rate between skiers and snowboarders...

... that incorporate effects of loading, unloading and reloading (via repressurization) of the crack tip has been examined. Analysis results indicate that minimal loss of constraint relative to conditions of K-dominant small-scale yielding (SSY) is observed during the monotonic-loading phase of the transients...

... The dislocation model is extended to include nonlinear hardening of the cracktip fields. The resulting model is applied to the loaded and unloaded crack. Several factors affecting the cyclic J -integral are discussed, including mean stress, Baushinger effects, and the applied far-field strain...

... horizontal stress and pore pressure. A new analysis is presented of the unloading stage of the pressuremeter test; this can provide a separate check on the parameters measured during the loading stage. An optimisation routine is used to fit the properties to the results of a series of tests at a site...

... To investigate the phenomenon of initial failure, the post-failure behavior and the behavior under unloading and reloading, uniaxial tension tests were conducted on three kinds of laminated carbon fiber reinforced plastic coupon specimens, that is, ±30-deg, 90-deg laminates, ±45-deg, 90-deg...

... A sensitivity analysis of the unloading compliance single-specimen J -test technique was performed to determine the effect of errors in test parameters on calculated ductile fracture toughness J Ic values and the shape of the J-R curve. Systematic errors in measured specimen dimensions...

... The measurement of the displacement at the crack mouth of three-point bend specimens is compared to the measurement of load-line displacement for crack-length and J-integral evaluation. For crack-length determination by the unloading technique, the correction that must be made when using a clip...

... Two different methods, the unloading compliance and the AC-potential drop method have been applied simultaneously for crack length measurement during ductile crack extension in J-R curve determinations. The materials used in the comparison of the two test methods were a pressure vessel steel...

... The unloading compliance method has been used to measure crack lengths during the fracture toughness testing of an A508 Class II (Unified Numbering System [UNS] K12766) steel. It is shown that accurate crack length predictions (within ±4%) can be achieved by accounting for the extraneous...

... Static indentation tests have been conducted on glass/epoxy and graphite/epoxy composite laminates with steel balls as the indentor. Beam specimens clamped at various spans were used for the tests. Loading, unloading, and reloading data were obtained and fitted into power laws. It was found...

... testing are discussed, and an explanation is offered. mechanical tests stress relaxation tests unloading strains creep tests extensometers stresses A. K. Schmieder^ and R. S. Robinson^ Comparison of Manual to Automatic Unloading During Relaxation Tests REFERENCE: Schmieder, A. K...