Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Jeffrey D. Helm"'
Publikováno v:
Structural Materials Technology ISBN: 9781003075844
This paper presents some preliminary results from an on-going research project on the monitoring of the performance of bridge structures using the computer stereo vision method. The computer stereo vision method and a DCDT were used to measure the ve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d7410932aac543041fe90006f9fd192
https://doi.org/10.1201/9781003075844-26
https://doi.org/10.1201/9781003075844-26
Autor:
Muhannad T. Suleiman, Jeffrey D. Helm
Publikováno v:
Procedia IUTAM. 4:66-72
A testing system to investigate soil-structure interaction on laterally loaded piles has been developed at Lafayette College. The two-piece soil box developed for this work allows the direct or indirect loading of single or multiple pile systems. Dir
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e985a70f9683eaf3da0daa554b51e727
https://doi.org/10.1016/j.piutam.2012.05.008
https://doi.org/10.1016/j.piutam.2012.05.008
Publikováno v:
Journal of Composites for Construction. 12:312-322
This paper presents the results of an experimental study on the distribution of shear stresses along the interface between concrete and the carbon fiber-reinforced polymer (FRP) in 29 plate-strengthened beams, where the primary test variables are: Cl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9baaf4b85f07bddaa8dd5492794d739
https://doi.org/10.1061/(asce)1090-0268(2008)12:3(312)
https://doi.org/10.1061/(asce)1090-0268(2008)12:3(312)
Publikováno v:
Journal of Geotechnical and Geoenvironmental Engineering. 140
The soil-structure interaction of piles used to stabilize failing slopes (i.e., subjected to lateral soil movement known as passive piles) was experimentally investigated using a state-of-the-art soil-structure interaction facility. A 102-mm diameter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb0ac5e0ac51b1f272efe6acdef29600
https://doi.org/10.1061/(asce)gt.1943-5606.0001081
https://doi.org/10.1061/(asce)gt.1943-5606.0001081
Publikováno v:
International Journal of Fracture. 109:285-301
To assess the viability of using a critical COD criterion for flaws in 2024-T3 aluminum experiencing tension stresses (SP) and torsion stresses (ST), the enclosed work presents (a) a complete set of measurements for critical COD during crack growth u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::03903839ae02d5d49c3b26d4bcc50320
https://doi.org/10.1023/a:1011014917851
https://doi.org/10.1023/a:1011014917851
Publikováno v:
Engineering Fracture Mechanics. 66:171-185
Recent experimental studies have shown that a critical Crack Opening Displacement (COD) has the potential to be a viable parameter for predicting the onset of crack growth in thin sheet 2024-T3 aluminum under combined tension (mode I) and in-plane sh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9668069278837ca68b3cf52a6a38444c
https://doi.org/10.1016/s0013-7944(00)00011-4
https://doi.org/10.1016/s0013-7944(00)00011-4
Autor:
Stephen R. McNeill, Jeffrey D. Helm
Publikováno v:
Mechatronics. 5:763-774
The University of South Carolina's Department of Mechanical Engineering has, over the last nine years, developed a course in the fundamentals of microprocessors for the undergraduate mechanical engineering student. This required class is designed to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e43fe6d7ce495d892957108c5a343c6
https://doi.org/10.1016/0957-4158(95)00047-9
https://doi.org/10.1016/0957-4158(95)00047-9
Autor:
Jeffrey D. Helm, Scott R. Hummel
Publikováno v:
Journal of Tribology. 132
Galling is a severe form of mechanical surface damage, commonly observed in metals, that is accompanied by adhesive transfer, extensive plastic deformation, and/or cold-welding of the mating surfaces. It can lead to seizure or rapid failure of machin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af612686d1757e10dd1f0b1f6e967625
https://doi.org/10.1115/1.4002504
https://doi.org/10.1115/1.4002504
Autor:
Scott R. Hummel, Jeffrey D. Helm
Publikováno v:
Journal of Tribology. 131
A new parameter called the Galling50 value is proposed to provide a statistically relevant measure of galling resistance. The Galling50 value represents the stress value where galling is expected to occur in 50% of the specimens tested. Galling50 is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc4095fc67ca9869a6ddf5ea1ba57e53
https://doi.org/10.1115/1.3123344
https://doi.org/10.1115/1.3123344