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1 bending cycles
- bending cycles
- n
Англо-русский строительный словарь. — М.: Русский Язык. С.Н.Корчемкина, С.К.Кашкина, С.В.Курбатова. 1995.
Англо-русский словарь строительных терминов > bending cycles
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2 bending cycles
bending cycles Biegewechselzahl fEnglish-German dictionary of Architecture and Construction > bending cycles
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3 bending cycles
Строительство: циклы изгиба -
4 bending cycles
<qualit.mat> ■ Biegewechselzahl f -
5 bending cycles
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6 number of bending cycles
<qualit.mat> ■ Biegewechselzahl fEnglish-german technical dictionary > number of bending cycles
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7 bending cycle
Волоконная техника: цикл изгиба (10 million bending cycles at room temperature) -
8 cycle
1) цикл; такт; период; полный оборот•- cycle of stress alternation - basic cycle - bending cycle - design cycle - digging cycle - filter cycle - filtration cycle - form cycle - life cycle - mixing cycle - regeneration cycle - retention cycle - reversible cycle - stress cycle - three-step decompression cycle - working cycle* * *цикл, период; круг- cycle of stress
- cycle of use
- absorption cycle
- air cycle
- alternating stress cycle
- autoclave cycle
- batching cycle
- bending cycles
- coil loop heat recovery cycle
- design cycle
- duty cycle
- economizer cycle
- floor-per-week cycle
- form cycle
- life cycle of equipment
- mixing cycle
- operating cycle
- operational cycle
- refrigeration cycle
- repeated cycles of freezing and thawing
- repeated stress cycles
- reverse cycle
- reversible cycle
- run-around cycle
- steam-curing cycle
- storage cycle
- stress cycle
- thermodynamic cycle
- working cycle -
9 cycle
- cycle
- nцикл, период; круг
- cycle of stress
- cycle of use
- absorption cycle
- air cycle
- alternating stress cycle
- autoclave cycle
- batching cycle
- bending cycles
- coil loop heat recovery cycle
- design cycle
- duty cycle
- economizer cycle
- floor-per-week cycle
- form cycle
- life cycle of equipment
- mixing cycle
- operating cycle
- operational cycle
- refrigeration cycle
- repeated cycles of freezing and thawing
- repeated stress cycles
- reverse cycle
- reversible cycle
- run-around cycle
- steam-curing cycle
- storage cycle
- stress cycle
- thermodynamic cycle
- working cycle
Англо-русский строительный словарь. — М.: Русский Язык. С.Н.Корчемкина, С.К.Кашкина, С.В.Курбатова. 1995.
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10 strength
1) прочность; крепость; предел прочности; сопротивление, временное сопротивление ( материала)2) интенсивность; напряжённость4) численность, количество5) концентрация ( раствора)•strength in compression — сопротивление сжатию, прочность на сжатие
strength in shear — сопротивление срезу, прочность на срез
- adhesive strengthstrength in torsion — сопротивление кручению, прочность на кручение
- beam strength
- bending strength
- bonding strength
- breaking strength
- buckling strength
- clamping strength
- coercive field strength
- compression strength
- compressive strength
- creep strength
- crushing strength
- current strength
- dielectric strength
- dielectrical strength
- disturbance field strength
- endurance strength
- fatigue strength at specified number of cycles
- fatigue strength
- flexural strength
- fracture strength
- impact strength
- inadequate strength
- insulating strength
- interference field strength
- magnetic field strength
- mechanical article strength
- mechanical strength
- ply tensile strength
- proof strength
- repeated impact bending strength
- repeated transverse stress strength
- rupture strength
- setting strength
- shear strength
- shearing strength
- shock strength
- sliding strength
- static strength
- strength of materials
- strength of test
- stress-rupture strength
- tensile strength
- thread strength
- threaded hole strength
- tooth strength
- torsional strength
- transverse rupture strength
- ultimate strength
- vibration strength
- yield strengthEnglish-Russian dictionary of mechanical engineering and automation > strength
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11 Wöhler, August
SUBJECT AREA: Metallurgy[br]b. 22 June 1819 Soltau, Germanyd. 21 June 1914 Hannover, Germany[br]German railway engineer who first established the fatigue fracture of metals.[br]Wöhler, the son of a schoolteacher, was born at Soltau on the Luneburg Heath and received his early education at his father's school, where his mathematical abilities soon became apparent. He completed his studies at the Technical High School, Hannover.In 1840 he obtained a position at the Borsig Engineering Works in Berlin and acquired there much valuable experience in railway technology. He trained as an engine driver in Belgium and in 1843 was appointed as an engineer to the first Hannoverian Railway, then being constructed between Hannover and Lehrte. In 1847 he became Chief Superintendent of rolling stock on the Lower Silesian-Brandenhurg Railway, where his technical abilities influenced the Prussian Minister of Commerce to appoint him to a commission set up to investigate the reasons for the unusually high incidence of axle failures then being encountered on the railways. This was in 1852, and by 1854, when the Brandenburg line had been nationalized, Wöhler had already embarked on the long, systematic programme of mechanical testing which eventually provided him with a clear insight into the process of what is now referred to as "fatigue failure". He concentrated initially on the behaviour of machined iron and steel specimens subjected to fluctuating direct, bending and torsional stresses that were imposed by testing machines of his own design.Although Wöhler was not the first investigator in this area, he was the first to recognize the state of "fatigue" induced in metals by the repeated application of cycles of stress at levels well below those that would cause immediate failure. His method of plotting the fatigue stress amplitude "S" against the number of stress cycles necessary to cause failure "N" yielded the well-known S-N curve which described very precisely the susceptibility to fatigue failure of the material concerned. Engineers were thus provided with an invaluable testing technique that is still widely used in the 1990s.Between 1851 and 1898 Wöhler published forty-two papers in German technical journals, although the importance of his work was not initially fully appreciated in other countries. A display of some of his fracture fatigue specimens at the Paris Exposition in 1867, however, stimulated a short review of his work in Engineering in London. Four years later, in 1871, Engineering published a series of nine articles which described Wöhler's findings in considerable detail and brought them to the attention of engineers. Wöhler became a member of the newly created management board of the Imperial German Railways in 1874, an appointment that he retained until 1889. He is also remembered for his derivation in 1855 of a formula for calculating the deflections under load of lattice girders, plate girders, and other continuous beams resting on more than two supports. This "Three Moments" theorem appeared two years before Clapeyron independently advanced the same expression. Wöhler's other major contribution to bridge design was to use rollers at one end to allow for thermal expansion and contraction.[br]Bibliography1855, "Theorie rechteckiger eiserner Brückenbalken", Zeitschrift für Bauwesen 5:122–66. 1870, "Über die Festigkeitversuche mit Eisen und Stahl", Zeitschrift für Bauwesen 20:73– 106.Wöhler's experiments on the fatigue of metals were reported in Engineering (1867) 2:160; (1871) 11:199–200, 222, 243–4, 261, 299–300, 326–7, 349–50, 397, 439–41.Further ReadingR.Blaum, 1918, "August Wöhler", Beiträge zur Geschichte der Technik und Industrie 8:35–55.——1925, "August Wöhler", Deutsches biographisches Jahrbuch, Vol. I, Stuttgart, pp. 103–7.K.Pearson, 1890, "On Wöhler's experiments on alternating stress", Messeng. Math.20:21–37.J.Gilchrist, 1900, "On Wöhler's Laws", Engineer 90:203–4.ASD
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