0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
How is a rectangular prism and a cylinder different?
A rectangular prism has a rectangular cross section whereas a cylinder has a circular cross section
Moment of inertia is a cross sectional property that gives the engineer an indication of the stiffness of a particular shape value can used to?
find the strength of the member subject to bending or shear. Moment of inertia is used to find radius of gyratia or flexural regidity so that member strength flexural stress is found
What has a circular cross section when the cross section is taken parallel?
A cylinder has a circular cross section that is parallel to its base.
Why was arches and triangles used in making a bridge?
Introduction of Arches reduces the bending moment at cross sections due to presence of horizontal force at the support whenever bridge is loaded and thus requirement of cross section is lesser. When triangles are easy to propagate and can have tension/compression only if used as 2-point member in bridges (forces acts only the end of any member not in between), Due to absence of bending moment it also reduces the cross-section requirement. Therefore, if we introduce arches and triangles cross section requirements of each small member get reduced.
What degree in cross section of a sphere?
Every cross-section of a sphere is a circle.
Relation between tensile stressbending moment and section of modulus?
The relation between bending moment and the second moment of area of the cross-section and the stress at a distance y from the neutral axis is stress=bending moment * y / moment of inertia of the beam cross-section
Units of section modulus?
Section Modulus is moment of inertia divided by distance from center of gravity to farthest point on the cross-section or I/c. The units of Moment of Inertia is distance^4 so the units of section modulus is distance^3 ( distance cubed ). So if your units are in meters: I/c = (m^4)/(m) = m^3
Radius of gyration of tubular steel of 60 mm diameter pipe?
radius of gyration = sqrt(Moment of inertia/cross section area) Regards, Sumit
Fully plastic moment of section?
The fully plastic moment of section is referred as the moment at which a given cross-section has reached its yield stress.
What is the plastic section modulus of steel section?
section modulus of any section is the ratio of the moment of inertia to the distance of extreem fibre from the neutral axis. plastic section modulus is the section modulus when the cross section is subjected to loading such that the whole section is under yield load. numerically it is equal to the pdoduct of the half the cross section area and the distance of center of gravity of tension and compression area from neutral axis
How many pounds can a 2 inch x 8 inch x 14 feet hold?
This is a complex question requiring knowledge of the support connections, the moment of inertia for the cross section, the Young's Modulus, and the slenderness ratio of the member.
What is the use of moment of inertia?
moment of inertia is the rotational equivalent of mass. it is given by I= Mk2 moment of inertia in rotational motion play the same role as mass in linear motion, that is in linear motion f = ma while in rotation, torque= I*Angular acceleration where I is the moment of inertia
What is the difference between Bending STRESS and Direct Stress?
direct stress is a stress normal to the cross section, A, and is the result of an axial load, P. direct stress = P/A Bending stress also acts normal to the cross section but varies from tension on one side and compression on the other. and is the result of a bending moment, M. bending stress = Mc/I where I is the area moment of inertia and c the distance from outer fiber to neutral axis
How is a rectangular prism and a cylinder different?
A rectangular prism has a rectangular cross section whereas a cylinder has a circular cross section
What is mechanical moment?
it is the force acting on an element of any cross section multiplied by its distance from an predefined axis
Moment of inertia is a cross sectional property that gives the engineer an indication of the stiffness of a particular shape value can used to?
find the strength of the member subject to bending or shear. Moment of inertia is used to find radius of gyratia or flexural regidity so that member strength flexural stress is found
How do you calculate section modulus of a T section?
This is a technique used by civil and mechanical engineers to calculate the cross section of a geometric figure. It is used to determine the Yield Moment also called My.
