网络抗弯截面系数;抗弯截面模量;弯曲截面系数 网络释义
The polar section modulus (also called section modulus of torsion), Zp, for circular sections may be found by dividing the polar moment of inertia, J, by the distance c from the center of gravity to the most remote fiber. This method may be used to find the approximate value of the pol...
A high-precision measurement device for shear modulus was designed by combining the ideas of the torsion balance and the principle of Michelson equal thick... Tairan Chen,Yang Zheng,Ruiyang Hong,... - IOP Publishing Ltd 被引量: 0发表: 2024年 NUMERICAL METHODS FOR DETERMINING TORSIONAL STIFFNESS...
DXA-derived section modulus and bone mineral content predict long-bone torsional strength. Acta Orthopaedica Scandinavica 70, 71-6, 1999Sarin VK, Loboa Polefka EG, Beaupre GS, Kiratli BJ, Carter DR, van der Meulen MC. DXA-derived section mod- ulus and bone mineral content predict long-bone...
Recall that, unlike in open cross-sections, the torsion mode (4) is not a Vlasov one in cross-sections with closed cells – it is included in the natural shear modes. 2. Six natural shear modes, namely the cell shear flow mode associated with torsion about the shear center (4 –the ...
shear modulus, G (derived from E and ν) Directional Behavior-Based Classification of Materials Three types of material classifications are often considered to simplify the definition and computational complexity for a particular structure type and response needs. These are shown in Table 2.1. Table ...
A = area of section (in2, mm2) Ix = moment of inertia about axis of symmetry (in4, mm4), U = Center Line Length (in, mm), τ = Unit shear stress force / area (lbs/in2, N/mm2), G =Modulus of rigidityforce / area (lbs/in2, N/mm2), ...
Stress-strain state of reinforced bimodulus beam on an elastic foundation The formulas determining normal stresses, bending moments, shear forces, rotation angles and a deflection of a rectangular crosssection beam reinforced with any number of bars aligned parallel to the beam axis have been obtained...
In the case of a complex pair, this is readily accomplished by choosing rj, and μj as the modulus and phase. In the case of a real pair R1j and R2j, we choose rj=±R1jR2j, where the sign is determined to be the same as that of R1j and R2j. We then choose μj=i⋅log(...
The modulus of rigidity was determined at room temperature for specimens (810 mm in width, 1.52.5 mm in thickness, and 112150 mm in length) of electrolytic iron, electrolytic copper, silver and coelinvar alloy, with a view to testing the performance of this experimental apparatus. The ...