A prismatic bar of cross-sectional area 50 ×50 mm is subjected to a tensile load of 250 kN. What is the strain in the bar if modulus of elasticity of the bar is 25000 MPa.
Question 2
A stepped circular bar 85 mm long is subjected to various forces as shown in figure, then the change in length of the bar is _______mm. [Take E = 200 kN/mm2]
Question 3
A continuous beam loaded with concentrated loads W at centre of each span is shown below in the figure. The value of W at collapse will be
Question 4
Consider the following statements:
Statement 1: Stress strain curve for same material having different dimensions will be different.
Statement 2: Stress strain curve is used to study the properties of material not the load deformation curve.
Question 5
Which of the following statements regarding plastic theory of steel sections is/are correct
1. At ultimate collapse load, number of plastic hinges must be just enough to form a mechanism.
2. In a large system, the uniformly distributed load can be replaced by a number of concentrated loads to simplify the plastic analysis.
3. For a symmetrical cross section, both plastic and elastic neutral axis coincide with each other.
4. Actual distribution of strain across a section is bilinear
Question 6
What is the distance between the elastic neutral axis and the plastic neutral axis (in mm) for the cross-section as shown in the figure below?
Question 7
Which of the following conditions is to be satisfied both in elastic and plastic analysis?
Question 8
A propped cantilever beam shown in the figure has a plastic moment capacity of M0. The collapse load is
Question 9
Which of the following statements are correct? 1) Strain in the direction of applied stress is known as longitudinal strain. 2) Tensile stress results in tensile strain in linear and lateral directions. 3) Strains in all directions perpendicular to the applied stress are known as lateral strain. 4) Ratio of change in volume to original volume is known as volumetric strain.
Question 10
Match List-I (Loaded prismatic beam of uniform MP) with List-II (Plastic Load) and select the correct answer using the code given below the lists: List-I A) B) C) D) List-II 1) 2) 3) 4)
