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open access

An automated tool for evaluating compliance and providing assistance with building energy standards during design

Description: In an effort to encourage the maximum cost-effective level of energy efficiency in new building design, energy-efficiency standards have become more location-specific and performance-based. As a result, standards often provide more than one path for ensuring and demonstrating that a design complies, but at the cost of increased complexity. In addition, the burden of remedying a noncompliant design rests on the designers' knowledge and experience, with only general guidance provided by the stand… more
Date: April 30, 1992
Creator: Quadrel, R.W.; Brambley, M.R. & Stratton, R.C.
Partner: UNT Libraries Government Documents Department
open access

Adaptive Superplastic Forming Using NIKE2D with ISLAND

Description: Superplastic forming has emerged as an important manufacturing process for producing near-net-shape parts. The design of a superplastic forming process is more difficult than conventional manufacturing operations, and is less amenable to trial and error approaches. This paper describes a superplastic forming process design capability incorporating nonlinear finite element analysis. The material constraints to allow superplastic behavior are integrated into an external constraint equation which … more
Date: July 30, 1992
Creator: Engelmann, Bruce E.; Whirley, Robert G. & Raboin, Peter J.
Partner: UNT Libraries Government Documents Department
open access

A programming paradigm for distributed-memory computers

Description: One of the problems that arises in programming a multicomputer is the effective partitioning of the work into tasks and the assigning of those tasks to the processors. We will present a programming paradigm as a method of structuring the algorithms, allowing us to identify and separate programming phases. This paradigm allows us to develop a general software tool for dynamically allocating work to the processors while hiding many details of load balancing. Our paradigm consists of four phases: … more
Date: December 30, 1992
Creator: Crivelli, S. & Jessup, E. R.
Partner: UNT Libraries Government Documents Department
open access

Large spatial, temporal, and algorithmic adaptivity for implicit nonlinear finite element analysis

Description: The development of effective solution strategies to solve the global nonlinear equations which arise in implicit finite element analysis has been the subject of much research in recent years. Robust algorithms are needed to handle the complex nonlinearities that arise in many implicit finite element applications such as metalforming process simulation. The authors experience indicates that robustness can best be achieved through adaptive solution strategies. In the course of their research, thi… more
Date: July 30, 1992
Creator: Engelmann, B. E. & Whirley, R. G.
Partner: UNT Libraries Government Documents Department
open access

Preliminary minimum detectable limit measurements in 208-L drums for selected actinide isotopes in mock-waste matrices

Description: Preliminary minimum detectable levels (MDLS) of selected actinide isotopes have been determined in full-scale, 55-gallon drums filled with a range of mock-waste materials from combustibles (0.14 g/CM{sup 3}) to sand (1.7 g/CM{sup 3}). Measurements were recorded from 100 to 10,000 seconds with selected actinide sources located in these drums at an edge position, on the center axis of a drum and midway between these two positions. Measurements were also made with a {sup 166}Ho source to evaluate … more
Date: July 30, 1992
Creator: Camp, D. C.; Wang, Tzu-Fang & Martz, H. E.
Partner: UNT Libraries Government Documents Department
open access

An automated tool for evaluating compliance and providing assistance with building energy standards during design

Description: In an effort to encourage the maximum cost-effective level of energy efficiency in new building design, energy-efficiency standards have become more location-specific and performance-based. As a result, standards often provide more than one path for ensuring and demonstrating that a design complies, but at the cost of increased complexity. In addition, the burden of remedying a noncompliant design rests on the designers` knowledge and experience, with only general guidance provided by the stand… more
Date: April 30, 1992
Creator: Quadrel, R. W.; Brambley, M. R. & Stratton, R. C.
Partner: UNT Libraries Government Documents Department
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