Zobrazeno 1 - 10
of 77
pro vyhledávání: '"D. P. Updike"'
Autor:
D. P. Updike, Arturs Kalnins
Publikováno v:
Journal of Pressure Vessel Technology. 123:288-292
Tresca limit pressures for long cylindrical shells and complete spherical shells subjected to arbitrary pressure, and several approximations to the exact limit pressures for limited pressure ranges, are derived. The results are compared with those in
Autor:
D. P. Updike, Arturs Kalnins
Publikováno v:
Journal of Pressure Vessel Technology. 120:431-437
The condition of shakedown is examined for torispherical heads. The reason for using plastic analysis is to account for the strengthening that heads experience when subjected to internal pressure. Cyclic pressures are considered up to an allowable bu
Autor:
D. P. Updike, Arturs Kalnins
Publikováno v:
Journal of Pressure Vessel Technology. 120:6-11
This paper examines the calculated pressure at a tensile plastic instability of a pressure vessel and its relationship to burst test results. It is proposed that the instability pressure be accepted as an upper bound to the pressure at which a vessel
Autor:
Arturs Kalnins, D. P. Updike
Publikováno v:
Journal of Pressure Vessel Technology. 117:135-141
Two failure modes are addressed for cylinder-cone junctions under internal or external pressure: axisymmetric yielding and low-cycle fatigue. If the junction fails to meet the failure criterion of any one of the two modes, then it must be strengthene
Publikováno v:
Annals of Biomedical Engineering. 21:699-707
A kinematic analysis of the temporomandibular joint (TMJ) is developed to determine the range of motion of the mandible during normal opening and during special motions required for arthroscopic surgery. The translation of the mandible is restricted
Publikováno v:
Journal of Biomechanical Engineering. 115:231-238
A mathematical analysis of ocular pneumoplethysmography is presented, based on the physiological, anatomical, and biomechanical properties of the eye. Ocular pneumoplethysmography is a clinical procedure involving elevation of intraocular pressure, b
Publikováno v:
Journal of Pressure Vessel Technology. 114:149-156
A theoretical model of an expanded tube-to-tubesheet joint is developed and examined with the objective to determine the residual stresses in the transition zone, which lies between the expanded and unexpanded regions of the tube. Owing to their effe
Publikováno v:
Nuclear Engineering and Design. 130:229-234
The residual contact pressure in a rolled tube-tubesheet joint is calculated for several practical tube-tubesheet size and material selections. The analysis follows the elastic-plastic strain history during the tube expansion process. It accounts als
Publikováno v:
Journal of Pressure Vessel Technology. 114:249-251
Hydraulic expansion of a tube into a grooved tubesheet is modeled as an elastic-plastic process. A special shell theory is used to obtain the tube residual stresses in the vicinity of the grooves. It is found that the maximum tensile residual stresse
Publikováno v:
Journal of biomechanical engineering. 112(4)
We present a mathematical model to determine the contribution of each muscle acting on the mandible in the development of a given bite force. We give special attention to the representation of the widely radiated temporalis and account for the attach