Podcast
Questions and Answers
What type of forces are compressive and tensile forces?
What type of forces are compressive and tensile forces?
- Normal forces
- Applied forces
- Indirect forces
- Direct forces (correct)
Which of the following is NOT a reason for solid mechanics being a vast subject?
Which of the following is NOT a reason for solid mechanics being a vast subject?
- Wide range of materials
- Limited applications (correct)
- Wide range of applications
- Various types of deformations
What happens to a body under a compressive force?
What happens to a body under a compressive force?
- It gets shorter (correct)
- It twists
- It deforms
- It gets longer
Which type of stress is defined as the force per unit area perpendicular to which it acts?
Which type of stress is defined as the force per unit area perpendicular to which it acts?
How does normal stress arise?
How does normal stress arise?
What is the concept used to obtain the distribution of force acting over a sectioned area?
What is the concept used to obtain the distribution of force acting over a sectioned area?
What type of stress is maximum on a bar in tension?
What type of stress is maximum on a bar in tension?
When considering stress elements, how many basic states of stress exist at a point in a stressed body?
When considering stress elements, how many basic states of stress exist at a point in a stressed body?
How are the force components resolved on an inclined section through a bar?
How are the force components resolved on an inclined section through a bar?
What is the relationship between the force components and the inclined plane in stress analysis?
What is the relationship between the force components and the inclined plane in stress analysis?
In terms of the rotated coordinate system x1y1, when may a material yield or fail?
In terms of the rotated coordinate system x1y1, when may a material yield or fail?
How are stresses distributed on inclined sections in a bar?
How are stresses distributed on inclined sections in a bar?
What is the relationship between the strains of the concrete block and the steel bar in a composite material?
What is the relationship between the strains of the concrete block and the steel bar in a composite material?
In force equilibrium for a composite material, what does F = F1 + F2 represent?
In force equilibrium for a composite material, what does F = F1 + F2 represent?
What assumption leads to the shortening being the same inside material 1 and material 2?
What assumption leads to the shortening being the same inside material 1 and material 2?
In Example 9, what is the expression for σs in terms of Ec and σc?
In Example 9, what is the expression for σs in terms of Ec and σc?
What is the condition for plane stress in the xy plane for a 3D element?
What is the condition for plane stress in the xy plane for a 3D element?
What is the main purpose of representing stresses using stress elements?
What is the main purpose of representing stresses using stress elements?
