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Showing papers in "Nuclear Engineering and Design in 1985"


Journal ArticleDOI
TL;DR: In this paper, the applicability of existing statistical data for describing the resistance of steel and reinforced concrete nuclear plant structures was considered and probabilistic distributions were recommended to assess the reliability of containments and other Category I structures, developing fragilities, and selecting appropriate resistance criteria for probability-based structural design.

115 citations


Journal ArticleDOI
TL;DR: In this paper, the authors present a model relating experiments to theory for the different possible types of reflood in light-water Reactor (LWR)s and show that the quench temperature corresponds to either the minimum film boiling temperature or the Leidenfrost temperature.

113 citations


Journal ArticleDOI
TL;DR: In this article, a sliding-elastomer bearing pad-based aseismic foundation system for nuclear power plants is presented, and the performance and reliability of the system is demonstrated from the results of shaking table tests of scaled models, load and environmental tests of the bearings and various analytical studies.

95 citations


Journal ArticleDOI
TL;DR: This report is an addendum to the FRAP-T6/MODO user's manual which provides the additional user information needed to use FRAP/MOD1, including model changes, improvements, and additions, coding changes and improvements, change in input and control language, and example problem solutions to aid the user.

89 citations


Journal ArticleDOI
TL;DR: In this paper, the results of a ten-year joint research program on base isolation carried out by the Malaysian Rubber Producers' Research Association in England and the University of California at Berkeley are summarized.

69 citations


Journal ArticleDOI
TL;DR: In this paper, a new system for the three dimensional earthquake protection of whole structures, based on helical springs with definite linear flexibility of similar order in all three dimensions and velocity proportional viscodampers, also highly effective in all degrees of freedom.

59 citations


Journal ArticleDOI
TL;DR: Based on quadratic and cubic regression analysis of existing data, two new formulae have been proposed for predicting the penetration depth of concrete due to the impact by solid missiles as discussed by the authors.

59 citations


Journal ArticleDOI
TL;DR: In this paper, the critical heat flux (CHF) at low flow condition was studied for water flowing in thin rectangular channels, and experiments were carried out with two types of rectangular test sections, namely, the one heated from one wide side and the other heated from two opposite sides.

59 citations


Journal ArticleDOI
TL;DR: In this paper, an analysis of the removal of aerosol particles and gaseous fission products from steam-non-condensable gas mixtures rising through water pools is presented.

43 citations


Journal ArticleDOI
TL;DR: In this article, a line-contact model for the thermal resistance of a cylinder-flat contact is presented, which accounts for the variation in resistance across the gas-filled gap, on either side of the contact, as a function of gas pressure.

40 citations


Journal ArticleDOI
TL;DR: In this paper, a fast procedure to generate non-separable artificial records whose response spectra are close to a target spectrum is described, and the artificial accelerograms exhibit the same behaviour as actual records: both the amplitude and frequency content are non-stationary.

Journal ArticleDOI
TL;DR: In this article, a theoretically based procedure developed for round tubes has been applied to the prediction of DNB heat fluxes in rod bundles at PWR conditions, and state-of-the-art subchannel analysis procedures were used to determine local flows and enthalpies.

Journal ArticleDOI
TL;DR: In this article, a rigorous hybrid finite element procedure for the analysis of the thermoelastic problems with mixed-mode cracks is presented, in which hybrid singular elements are used around the crack-tip and high-order isoparametric regular elements are taken elsewhere.

Journal ArticleDOI
TL;DR: In this paper, the significance of in-service embrittlement of cast duplex stainless steels under light-water reactor operating conditions was investigated and the existing data were evaluated to determine the expected embrittlements of cast components during the operating lifetime of reactors and to define the objectives and scope of the investigation.

Journal ArticleDOI
TL;DR: In this article, a critical examination of the present ASTM E813-81 JIc test standard and proposed modifications of this standard was carried out and it was suggested that a value J corresponding to a ductile tearing, Δa∗, of 0.2 mm be regarded as an engineering approximation of initiation fracture toughness.

Journal ArticleDOI
TL;DR: In this article, the solidification process of heavy ingots was reproduced by the establishment of isocarbon lines, and the order of individual elements in which they tend to segregate macroscopically was evaluated as well as the influence of ingot making on macro-segregation.

Journal ArticleDOI
TL;DR: In this paper, the authors describe recent New Zealand experience with seismic base isolation, and in particular, the distinguishing feature of the New Zealand system - that of using mechanical energy dissipators to control response.

Journal ArticleDOI
TL;DR: In this article, the resonance frequencies of nuclear reactor cores were analyzed and the homogenized equations were obtained by representing the coupled cooling fluid-rod system as an equivalent continuous material.

Journal ArticleDOI
TL;DR: In this article, the authors present the interim results of the Bench Mark Project by the Subcommittee on the Inelastic Analysis and Life Prediction of High Temperature Materials, JSMS, and evaluate the constitutive models relevant to material response under the plasticity-creep interaction.

Journal ArticleDOI
TL;DR: In this paper, an evaluation of skew sensitivity of thirty three plate bending elements covering nineteen finite element systems was performed and the results showed that many elements are very sensitive to the skew angle.

Journal ArticleDOI
L. Lazzeri1, R. Da Col1, M. Scala1
TL;DR: The problem of crack instability is examined in this paper, with the following results: 1) the conventional SHA defined collapse locus is a conservative assessment of the pipe loading capability within the plastic range; 2) a large safety margin exists considering actual loads, even if secondary loads are included; 3) a parameter is defined which gives the rate of hinge rotation increment with respect to crack extension; 4.

Journal ArticleDOI
TL;DR: In this paper, the authors investigated the possibility of formulating an approach founded on a suitable equivalent linearization technique to deal with the non-linear stochastic dynamic problem of a nuclear power plant.

Journal ArticleDOI
TL;DR: In this article, a series of 4-way split laboratory melts of low alloy, pressure vessel steel, representing statistical combinations of specific impurity elements and/or alloying elements, are evaluated after 288°C irradiation to ∼ 2 × 1019 n/cm2, E > 1 MeV.

Journal ArticleDOI
TL;DR: In this article, a particular form of crack formation has occurred in a number of pressurized and boiling water reactors on the internal surfaces of horizontal lengths of feedwater piping upstream of the steam generators and reactor pressure vessels.

Journal ArticleDOI
TL;DR: In this article, the significance of in-service embrittlement of cast duplex stainless steels under light-water reactor operating conditions was investigated and the existing data were reviewed to determine the critical parameters that control the aging behavior and to define the objectives and scope of the investigation.

Journal ArticleDOI
TL;DR: In this paper, an acoustic leak detection (ALD) facility has been constructed at Argonne National Laboratory (ANL), and tests have begun on five laboratory-grown cracks (three fatigue cracks and two thermal-fatigue cracks) and two field-induced intergranular stress-corrosion cracks (IGSCC).

Journal ArticleDOI
TL;DR: In this article, the stability of a fluid-conveying tube with a variable knife-edge support is analyzed numerically and the effect on stability response produced by a change in support position is analyzed.

Journal ArticleDOI
TL;DR: In this paper, three layers of weld overlay cladding were applied to a pressure vessel steel plate by the submerged arc, single-wire, oscillating electrode method to irradiate at temperatures and fluences relevant to power reactor operation.

Journal ArticleDOI
TL;DR: In this article, the authors reviewed the special requirements regarding efficiency, licensibility, and cost which should be met to achieve an optimum base isolated nuclear power plant design, and described the Alexisismon-2, patented isolation system developed by the author, underlines its original properties (linearity and separation of functions) and presents a conceptual design of its application to a nuclear power plants.

Journal ArticleDOI
TL;DR: In this paper, an experimental relationship between the flattening of pipe and the pipe surface strain was used to derive the moment-rotation relationship of whipping pipe, which was then used to calculate the pipe strain in the pipe whip tests.